Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11
000
FNUS55 KRIW 200717
FWFRIW

Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
117 AM MDT Wed Sep 20 2017

.DISCUSSION...

...Yellowstone np and Teton dispatch areas (includes fire weather
Zones 140...414...415...AND 416)...

Temperatures warmer across the forecast zones when compared to those
on Tuesday with highs ranging from the lower 30s to mid 40s in the
Mountains...the mid 40s to around 50 in the valleys. Minimum RH
values will range from the 40s to around 60 percent at valley
locations...the 50s to the lower 70s (percent) in the mountains.
Winds will become southwest 15 to 25 mph with gusts 30 to 40 mph.
Isolated rain and snow showers today will increase to numerous
tonight...with periods of moderate to heavy snow possible above 8500
feet. Thursday, temperatures cooler with humidity much higher when
compared to those of today. Winds becoming variable to northwest 5
to 15 mph with gusts 20 to 25 mph. Numerous rain or snow showers all
zones.

...Rawlins dispatch area (includes fire weather zones
277...278...279...and 289)...

Fuels critical for all zones. Temperatures warmer for all locations
compared to those on Tuesday with highs ranging from the lower 50s
to mid 60s. Minimum RH values will range from near 25 percent to
around 30 percent. Winds west to southwest 20 to 30 mph with gusts
35 to 45 mph. Widely scattered to scattered showers tonight across
zone 278. Thursday, temperatures cooler and humidity higher for all
locations when compared to those of today. Winds northwest across
the western zones 10 to 15 mph...southwest 15 to 30 mph gusting 35
mph over the eastern zones. Scattered rain and snow showers across
zone 278...spreading east over the rest of the dispatch area
Thursday night.

...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...AND 289)...

Fuels are critical for all low elevation (non-mountainous) dispatch
zones. Temperatures warmer across the dispatch area when compared to
those on Tuesday with highs ranging from the mid 30s to lower 50s in
the mountains...the lower 50s to mid/upper 60s across the basins and
foothills. Minimum RH values will range from the mid 20s to near 30
percent over the lower elevations...the upper 30s to near 70 percent
at mountain locations. Winds will become southwest 20 to 30 mph
across the basins with gusts 35 to 40 mph...southwest 20 to 30 mph
with gusts 35 to 45 mph across zone 289...and southwest 25 to 45 mph
in the mountains with gusts to 50 to 60 mph. Isolated to widely
scattered rain or snow showers across the mountains. Moderate to
heavy snow possible tonight above 8500 feet. Thursday, temperatures
cooler and humidity higher for all locations when compared to those
of today. Winds becoming north to northwest 10 to 15 mph with gusts
20 to 25 mph across the lower elevations...north to northwest 10 to
20 mph with gusts 25 to 30 mph in the mountains. Numerous snow
showers in the mountains...heavy at times above 8500
feet...spreading east over the lower elevations Thursday night.

...Casper dispatch area (includes fire weather zones 280...281...
285...289...AND 300)...

Fuels are critical for all low elevation (non-mountainous) dispatch
zones. Temperatures warmer when compared to those on Tuesday with
highs ranging from the upper 30s to lower 50s in the mountains...the
upper 50s to near 70 across the lower elevations. Minimum RH values
will range from the upper teens to 30 percent across the lower
elevations...the mid 20s to around 65 percent over in the mountains.
Winds becoming southwest 20 to 30 mph with gusts 35 to 45 mph across
the southern zones... southwest 15 to 25 mph with gusts 30 to 35 mph
over the northern zones and mountains. Isolated to widely scattered
showers tonight over the Bighorn Mountains. Thursday, temperatures
cooler and humidity higher when compared to those of today. Winds
south to southwest 15 to 25 mph with gusts to 30 mph across the
southern zones...north 10 to 15 mph with gusts 20 to 25 mph over the
northern zones. Numerous rain or snow showers over the Bighorn
mountains...spreading across the lower elevations Friday morning.

...Thunderstorms imply strong gusty and erratic winds...
...Haines Index is high level Haines both day and night...

WYZ280-202215-
Natrona County/Casper BLM-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....64-69.
   24 hr trend......11 degrees warmer.
Min humidity........20-26 percent.
   24 hr trend......5 percent drier.
20-foot winds.......Windy. Southwest winds 20 to 25 mph with gusts
                    to around 35 mph until 1200, then around 30 mph
                    with gusts to around 40 mph.
Ridge top winds.....Southwest 25 to 30 mph until 1200, then around
                    35 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 30 to 35 mph until 1500, then around
                    40 mph.
Mixing height.......2500 ft AGL until 1200, then 7000-7500 ft AGL.
Smoke dispersal.....Good until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....42-47.
   24 hr trend......7 degrees warmer.
Max humidity........62-68 percent.
   24 hr trend......Unchanged.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 30 mph until 2100. downslope/downvalley
                    4-7 mph after 2400.
Ridge top winds.....Southwest around 25 mph until 2100, then 10 to
                    15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph until 2100, then 15 to
                    20 mph.
Mixing height.......4000-4500 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Partly cloudy.
Max temperature.....66-71.
   24 hr trend......1 degree warmer.
Min humidity........28-34 percent.
   24 hr trend......9 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 15
                    mph until 1200, then 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph until 1500, then around
                    25 mph.
Mixing height.......1000 ft AGL until 1200, then 7000-8500 ft AGL.
Smoke dispersal.....Poor until 1200, then very good to excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 30s. Northeast
winds around 15 mph.
.FRIDAY...Cooler. Mostly cloudy with chance of showers and snow
showers. Lows in the upper 30s. Highs in the lower 50s. Northeast
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Cloudy with chance of rain and snow.
Lows in the mid 30s. Highs in the mid 40s. Northeast winds around
10 mph.
.MONDAY...Partly cloudy. Slight chance of rain. Lows in the lower
30s. Highs in the upper 40s.
.TUESDAY...Partly cloudy. Highs in the mid 50s.

$$

WYZ283-202215-
Upper Wind River Basin/Wind River Basin-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....58-63.
   24 hr trend......9 degrees warmer.
Min humidity........28-34 percent.
   24 hr trend......3 percent drier.
20-foot winds.......Breezy. Southwest winds 15 to 20 mph with gusts
                    to around 30 mph until 1500, then around 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then 30 to
                    35 mph.
Mixing height.......2000-2500 ft AGL until 1200, then 6500-7000 ft
                    AGL.
Smoke dispersal.....Poor to fair until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers early in the morning.
                    Chance of showers 20 percent.
Min temperature.....40-45.
   24 hr trend......8 degrees warmer.
Max humidity........69-75 percent.
   24 hr trend......4 percent wetter.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 25 mph until 2100, then around 10 mph
                    with gusts to around 15 mph until 2400, then
                    downslope/downvalley 4-7 mph until 0300, then
                    west around 10 mph.
Ridge top winds.....Southwest around 25 mph until 2100, then west
                    10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph until 2100, then west
                    15 to 20 mph.
Mixing height.......3500-4000 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers.
                    Chance of showers 20 percent.
Max temperature.....52-57.
   24 hr trend......6 degrees cooler.
Min humidity........45-51 percent.
   24 hr trend......18 percent wetter.
20-foot winds.......Northwest winds around 10 mph until 1200, then
                    north. Gusts up to 15 mph.
Ridge top winds.....Northwest around 15 mph until 1200, then north.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 1200, then north.
Mixing height.......1000 ft AGL until 1200, then 4500-6000 ft AGL.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly cloudy. Chance of showers in the
evening, then snow showers likely and slight chance of showers
after midnight. Lows in the mid 30s. Northeast winds around
10 mph.
.FRIDAY...Cooler. Mostly cloudy with chance of showers and snow
showers. Lows in the mid 30s. Highs in the mid 40s. Northeast
winds around 10 mph.
.SATURDAY...Cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the mid 40s. Winds generally less than
10 mph.
.SUNDAY...Mostly cloudy with chance of rain and slight chance of
snow. Lows in the mid 30s. Highs in the mid 40s. Winds generally
less than 10 mph.
.MONDAY...Partly cloudy with slight chance of rain and snow. Lows
in the lower 30s. Highs in the upper 40s.
.TUESDAY...Partly cloudy. Highs in the lower 50s.

$$

WYZ285-202215-
South Bighorn Mountains-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....54-59.
   24 hr trend......7 degrees warmer.
Min humidity........25-31 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Breezy. Southwest winds 20 to 25 mph. Gusts up
                    to 25 mph until 0900, then 35 mph.
Ridge top winds.....Southwest 25 to 30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 30 to 35 mph.
Mixing height.......2000-2500 ft AGL until 1200, then 6500-7000 ft
                    AGL.
Smoke dispersal.....Fair to good until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers after midnight. Chance of
                    showers 20 percent.
Min temperature.....38-43.
   24 hr trend......10 degrees warmer.
Max humidity........65-71 percent.
   24 hr trend......7 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds 15 to 20 mph with gusts to
                    around 30 mph until 2400. downslope/downvalley
                    4-7 mph after 0300.
Ridge top winds.....Southwest 20 to 25 mph until 2400, then 10 to
                    15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph until 2100, then 15 to
                    20 mph.
Mixing height.......3500-4000 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers in
                    the afternoon. Chance of showers 20 percent.
Max temperature.....51-56.
   24 hr trend......4 degrees cooler.
Min humidity........42-48 percent.
   24 hr trend......17 percent wetter.
20-foot winds.......West winds around 10 mph until 0900, then
                    upslope/upvalley 5-9 mph until 1200, then south
                    around 15 mph.
Ridge top winds.....Southwest 10 to 15 mph until 1200, then south.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then south.
Mixing height.......1000 ft AGL until 1200, then 4000-5000 ft AGL.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening, then slight chance of showers and snow showers after
midnight. Lows in the lower 30s. Northeast winds around 10 mph.
.FRIDAY...Colder. Mostly cloudy with chance of showers and snow
showers. Lows in the lower 30s. Highs around 40. Northeast winds
around 10 mph.
.SATURDAY...Cloudy with chance of rain and snow. Lows around 30.
Highs in the upper 30s. Northeast winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the upper 30s. North winds around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows around 30. Highs 43 to 48.

$$

WYZ281-202215-
Johnson County/Casper BLM-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....60-65.
   24 hr trend......10 degrees warmer.
Min humidity........19-25 percent.
   24 hr trend......11 percent drier.
20-foot winds.......Breezy. Southwest winds 15 to 20 mph with gusts
                    to around 30 mph until 1500, then around 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 20 to 25 mph until 1500, then around
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 25 to 30 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 7500-8000 ft
                    AGL.
Smoke dispersal.....Poor to fair until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....41-46.
   24 hr trend......6 degrees warmer.
Max humidity........65-71 percent.
   24 hr trend......12 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 25 mph until 2100, then around 10 mph
                    with gusts to around 15 mph until 2400, then
                    downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest around 25 mph until 2100. west around
                    10 mph after 0300.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 2400, then around
                    15 mph until 0300, then west.
Mixing height.......4000 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Max temperature.....55-60.
   24 hr trend......8 degrees cooler.
Min humidity........42-48 percent.
   24 hr trend......22 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then north
                    around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph.
Mixing height.......1000 ft AGL until 1200, then 3500-4000 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy with slight chance of showers.
Lows in the mid 30s. North winds around 10 mph.
.FRIDAY...Cooler. Mostly cloudy with chance of showers and snow
showers. Lows in the mid 30s. Highs in the upper 40s. North winds
around 10 mph.
.SATURDAY...Cloudy with chance of rain. Lows in the mid 30s.
Highs in the mid 40s. North winds around 10 mph.
.SUNDAY...Cloudy with chance of rain and snow. Lows in the mid
30s. Highs in the mid 40s. Winds generally less than 10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
mid 30s. Highs around 50.
.TUESDAY...Partly cloudy. Highs in the mid 50s.

$$

WYZ282-202215-
South Big Horn Basin/Worland BLM-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....56-61.
   24 hr trend......7 degrees warmer.
Min humidity........25-31 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 1500, then around 20 mph
                    with gusts to around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1500, then around
                    25 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1500, then around
                    30 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 8000-8500 ft
                    AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers early in the morning.
                    Chance of showers 20 percent.
Min temperature.....39-44.
   24 hr trend......7 degrees warmer.
Max humidity........71-77 percent.
   24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......South winds 10 to 15 mph and gusty until 2400,
                    then downslope/downvalley 4-7 mph.
Ridge top winds.....South 15 to 20 mph until 2400, then around 10
                    mph until 0300, then northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph until 2100, then south
                    around 15 mph until 0300, then northwest.
Mixing height.......4000-4500 ft AGL until 2400, then 1000 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers.
                    Chance of showers 20 percent.
Max temperature.....50-55.
   24 hr trend......9 degrees cooler.
Min humidity........49-55 percent.
   24 hr trend......26 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
                    northwest 10 to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing height.......1000-1500 ft AGL until 1200, then 3000-3500 ft
                    AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly cloudy. Chance of showers in the
evening, then chance of showers and snow showers likely after
midnight. Lows in the mid 30s. Northwest winds around 10 mph.
.FRIDAY...Colder. Cloudy with chance of showers and snow showers.
Lows in the mid 30s. Highs in the lower 40s. Northwest winds
around 10 mph.
.SATURDAY...Cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the mid 40s. Winds generally less than
10 mph.
.SUNDAY...Mostly cloudy with chance of rain and slight chance of
snow. Lows in the mid 30s. Highs in the mid 40s. Winds generally
less than 10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
lower 30s. Highs in the upper 40s.
.TUESDAY...Partly cloudy. Highs in the lower 50s.

$$

WYZ275-202215-
North Big Horn Basin/Worland BLM-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Partly cloudy then becoming mostly sunny then
                    becoming partly cloudy.
Max temperature.....54-59.
   24 hr trend......8 degrees warmer.
Min humidity........27-33 percent.
   24 hr trend......10 percent drier.
20-foot winds.......South winds 15 to 20 mph. Gusts up to 25 mph
                    until 1500, then 30 mph.
Ridge top winds.....South 15 to 20 mph until 1200, then southwest
                    around 25 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....South 20 to 25 mph until 1500, then southwest
                    around 30 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 7500-9000 ft
                    AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers after midnight. Chance of
                    showers 20 percent.
Min temperature.....39-44.
   24 hr trend......8 degrees warmer.
Max humidity........70-76 percent.
   24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 0300, then
                    downslope/downvalley 4-7 mph.
Ridge top winds.....South 15 to 20 mph until 0300, then west around
                    10 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....South 20 to 25 mph until 2400, then southwest
                    around 15 mph.
Mixing height.......3500-4000 ft AGL until 2400, then 1000-1500 ft
                    AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers in
                    the morning, then chance of rain showers in the
                    afternoon. Chance of showers 50 percent.
Max temperature.....47-52.
   24 hr trend......11 degrees cooler.
Min humidity........51-57 percent.
   24 hr trend......25 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
                    northwest 10 to 15 mph.
Ridge top winds.....Northwest 10 to 15 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 3500-4500 ft
                    AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Showers likely in the evening, then showers and
snow showers likely after midnight. Lows in the mid 30s. North
winds around 10 mph.
.FRIDAY...Cloudy with showers and snow showers likely. Lows in
the mid 30s. Highs in the lower 40s. Northwest winds around
10 mph.
.SATURDAY...Cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the mid 40s. Northwest winds around 10 mph.
.SUNDAY...Mostly cloudy with slight chance of rain and snow. Lows
in the mid 30s. Highs in the mid 40s. Winds generally less than
10 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
mid 30s. Highs around 50.
.TUESDAY...Partly cloudy. Highs in the mid 50s.

$$

WYZ276-202215-
Cody Foothills-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....54-59.
   24 hr trend......6 degrees warmer.
Min humidity........29-35 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Windy. Southwest winds 15 to 20 mph with gusts
                    to around 30 mph until 1200, then 25 to 30 mph
                    with gusts to around 40 mph.
Ridge top winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 0900, then 30 to
                    35 mph.
Mixing height.......2000 ft AGL until 1200, then 7500-8500 ft AGL.
Smoke dispersal.....Fair until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers through the night. Chance
                    of showers 20 percent.
Min temperature.....37-42.
   24 hr trend......5 degrees warmer.
Max humidity........75-81 percent.
   24 hr trend......12 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Breezy. Southwest winds around 25 mph with
                    gusts to around 35 mph until 2100.
                    downslope/downvalley 4-7 mph after 0300.
Ridge top winds.....Southwest around 30 mph until 2100. west around
                    10 mph after 0300.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 25 to 30 mph until 2400, then west
                    around 15 mph.
Mixing height.......3000-3500 ft AGL until 2400, then 1000 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers in
                    the morning, then chance of rain showers in the
                    afternoon. Chance of showers 50 percent.
Max temperature.....42-47.
   24 hr trend......12 degrees cooler.
Min humidity........55-61 percent.
   24 hr trend......29 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then north
                    around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph.
LAL.................1.
Chc of wetting rain.12 percent.
Transport winds.....North 15 to 20 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 3500-4500 ft
                    AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Showers likely and snow showers in the evening,
then snow showers and showers likely after midnight. Lows around
30. North winds around 10 mph.
.FRIDAY...Cloudy with snow showers likely and chance of showers.
Lows around 30. Highs in the mid 30s. North winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly cloudy with chance of snow and
slight chance of rain. Lows 28 to 33. Highs 38 to 43. North winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of rain and snow. Lows
in the lower 30s. Highs in the upper 40s.
.TUESDAY...Partly cloudy. Highs around 50.

$$

WYZ287-202215-
Owl Creek Mountains-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....53-58.
   24 hr trend......6 degrees warmer.
Min humidity........28-34 percent.
   24 hr trend......2 percent drier.
20-foot winds.......Windy. Southwest winds 15 to 20 mph with gusts
                    to around 30 mph until 1200, then 25 to 30 mph
                    with gusts to around 40 mph.
Ridge top winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 25 to 30 mph until 1200, then around
                    35 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 7000 ft AGL.
Smoke dispersal.....Poor to fair until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers in the late evening and
                    overnight. Chance of showers 20 percent.
Min temperature.....38-43.
   24 hr trend......8 degrees warmer.
Max humidity........69-75 percent.
   24 hr trend......8 percent wetter.
Humidity recovery...Good.
20-foot winds.......Breezy. Southwest winds around 25 mph with
                    gusts to around 35 mph until 2100, then west 10
                    to 15 mph and gusty.
Ridge top winds.....Southwest around 30 mph until 2100, then west
                    15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 35 mph until 2100. west around
                    15 mph after 2400.
Mixing height.......3500 ft AGL until 2400, then 1000 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Cloudy. Slight chance of rain showers in the
                    morning, then chance of rain showers in the
                    afternoon. Chance of showers 50 percent.
Max temperature.....45-50.
   24 hr trend......10 degrees cooler.
Min humidity........51-57 percent.
   24 hr trend......24 percent wetter.
20-foot winds.......North winds around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 15 mph.
LAL.................1.
Chc of wetting rain.Less than 5 percent.
Transport winds.....North 15 to 20 mph.
Mixing height.......1500-3000 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Showers and snow showers likely. Lows in the
lower 30s. North winds around 10 mph.
.FRIDAY...Colder. Cloudy with snow showers likely and chance of
showers. Lows in the lower 30s. Highs in the mid 30s. North winds
around 10 mph.
.SATURDAY...Cloudy with chance of rain and snow. Lows in the
upper 20s. Highs in the upper 30s. North winds around 10 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the upper 30s. Winds generally less than
10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows around 30. Highs 44 to 49.

$$

WYZ286-202215-
Absaroka Mountains/North Shoshone NF-
117 AM MDT Wed Sep 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
NOON MDT FRIDAY...

.Today...
Sky/weather.........Partly cloudy. Isolated rain showers in the
                    morning. Scattered snow showers through the
                    day. Scattered rain showers in the afternoon.
                    Chance of precipitation 50 percent.
Max temperature.....43-48.
   24 hr trend......4 degrees warmer.
Min humidity........52-58 percent.
   24 hr trend......3 percent drier.
20-foot winds.......Windy. West winds 20 to 25 mph with gusts to
                    around 35 mph until 1200, then southwest around
                    35 mph with gusts to around 50 mph.
Ridge top winds.....West 25 to 30 mph until 1200, then southwest 35
                    to 40 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....West around 25 mph until 0900. southwest around
                    45 mph after 1500.
Mixing height.......2500-3000 ft AGL until 1200, then 5000-6000 ft
                    AGL.
Smoke dispersal.....Good until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Scattered rain showers and numerous snow
                    showers early in the evening, then numerous
                    rain showers in the late evening and early
                    morning. Scattered rain showers and numerous
                    snow showers early in the morning. No snow
                    accumulation. Chance of precipitation 70
                    percent.
Min temperature.....31-36.
   24 hr trend......7 degrees warmer.
Max humidity........80-86 percent.
   24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Windy. Southwest winds around 35 mph with gusts
                    to around 45 mph until 2100. west around 10 mph
                    with gusts to around 15 mph after 2400.
Ridge top winds.....Southwest around 40 mph until 2100. west around
                    15 mph after 2400.
LAL.................1.
Chc of wetting rain.25 percent until 2400, then 35 percent.
Transport winds.....Southwest around 40 mph until 2100. west around
                    20 mph after 2400.
Mixing height.......1500-3000 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers in the
                    morning. Chance of rain showers through the
                    day. Snow showers likely in the afternoon. No
                    snow accumulation. Chance of precipitation 70
                    percent.
Max temperature.....36-41.
   24 hr trend......6 degrees cooler.
Min humidity........66-72 percent.
   24 hr trend......16 percent wetter.
20-foot winds.......Northwest winds around 10 mph and gusty.
Ridge top winds.....Northwest around 15 mph.
LAL.................1.
Chc of wetting rain.22 percent.
Transport winds.....Northwest around 15 mph.
Mixing height.......2000-2500 ft AGL until 1200, then 3500-4500 ft
                    AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Snow showers and showers. Lows in the mid 20s.
Winds generally less than 10 mph.
.FRIDAY...Cloudy with snow showers likely and chance of showers.
Lows in the mid 20s. Highs in the lower 30s. Winds generally less
than 10 mph.
.SATURDAY...Mostly cloudy with chance of snow and rain. Lows in
the lower 20s. Highs in the mid 30s. Winds generally less than
10 mph.
.SUNDAY...Mostly cloudy with chance of snow and slight chance of
rain. Lows in the mid 20s. Highs in the mid 30s. Winds generally
less than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the mid 20s. Highs 39 to 44.

$$

WYZ140-202215-
Yellowstone National Park-
117 AM MDT Wed Sep 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
NOON MDT FRIDAY...

.Today...
Sky/weather.........Cloudy. Scattered rain showers and snow showers
                    in the morning, then numerous rain showers and
                    snow showers in the afternoon. Little or no
                    snow accumulation. Chance of precipitation 70
                    percent.
Max temperature.....39-44.
   24 hr trend......3 degrees warmer.
Min humidity........63-69 percent.
   24 hr trend......Unchanged.
20-foot winds.......Breezy. Southwest winds 15 to 20 mph with gusts
                    to around 30 mph until 1500, then around 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest around 15 mph until 0900, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.15 percent until 1200, then 25 percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
Mixing height.......2500-4000 ft AGL.
Smoke dispersal.....Fair until 1200, then good to very good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Numerous rain showers and snow showers.
                    No snow accumulation. Chance of precipitation
                    70 percent.
Min temperature.....30-35.
   24 hr trend......6 degrees warmer.
Max humidity........86-92 percent.
   24 hr trend......1 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 2400, then
                    downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 15 to 20 mph until 2400, then around
                    10 mph.
LAL.................1.
Chc of wetting rain.35 percent until 2400, then 65 percent.
Transport winds.....Southwest 20 to 25 mph until 2400, then around
                    15 mph.
Mixing height.......1500-2000 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Chance of snow showers and rain
                    showers. Chance of precipitation 50 percent.
Max temperature.....36-41.
   24 hr trend......3 degrees cooler.
Min humidity........69-75 percent.
   24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200.
Ridge top winds.....Southwest around 10 mph.
LAL.................1.
Chc of wetting rain.20 percent until 1200, then 10 percent.
Transport winds.....Southwest around 15 mph.
Mixing height.......2500-4500 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Snow showers likely. Lows in the mid 20s. Winds
generally less than 10 mph.
.FRIDAY...Cloudy with snow showers likely and chance of showers.
Lows in the mid 20s. Highs in the mid 30s. Winds generally less
than 10 mph.
.SATURDAY...Mostly cloudy with slight chance of rain and snow.
Lows in the lower 20s. Highs in the mid 30s. Winds generally less
than 10 mph.
.SUNDAY...Partly cloudy with slight chance of rain and snow. Lows
in the lower 20s. Highs in the upper 30s. Winds generally less
than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the mid 20s. Highs 40 to 45.

$$

WYZ415-202215-
North Zone Bridger Teton NF and Grand Teton NP-
117 AM MDT Wed Sep 20 2017

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON
MDT FRIDAY...

.Today...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers in the morning. Scattered
                    snow showers through the day. Scattered rain
                    showers in the afternoon. Chance of
                    precipitation 50 percent.
Max temperature.....40-45.
   24 hr trend......4 degrees warmer.
Min humidity........57-63 percent.
   24 hr trend......2 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 1200, then around 20 mph
                    with gusts to around 30 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then around
                    25 mph.
LAL.................1.
Chc of wetting rain.7 percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
Mixing height.......2000 ft AGL until 1200, then 5000-5500 ft AGL.
Smoke dispersal.....Poor to fair until 1200, then very good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Numerous rain showers and snow showers
                    in the evening, then widespread rain showers
                    and snow showers after midnight. No snow
                    accumulation. Chance of precipitation 90
                    percent.
Min temperature.....31-36.
   24 hr trend......6 degrees warmer.
Max humidity........88-94 percent.
   24 hr trend......2 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 25 mph until 2400, then
                    downslope/downvalley 4-7 mph.
Ridge top winds.....Southwest 15 to 20 mph until 2400, then around
                    10 mph.
LAL.................1.
Chc of wetting rain.45 percent until 2400, then 80 percent.
Transport winds.....Southwest 20 to 25 mph until 2400, then around
                    15 mph.
Mixing height.......1000-2500 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Cloudy. Snow showers and rain showers in the
                    morning, then rain showers and snow showers
                    likely in the afternoon. No snow accumulation.
                    Chance of precipitation 90 percent.
Max temperature.....34-39.
   24 hr trend......6 degrees cooler.
Min humidity........72-78 percent.
   24 hr trend......17 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph. 10 mph after 1200.
Ridge top winds.....West around 10 mph.
LAL.................1.
Chc of wetting rain.40 percent until 1200, then 25 percent.
Transport winds.....West around 15 mph.
Mixing height.......2000 ft AGL until 1200, then 3500-4000 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Snow showers with showers likely in the
evening, then snow showers after midnight. Lows in the upper 20s.
Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy with snow showers likely and chance of
showers. Lows in the upper 20s. Highs in the mid 30s. Winds
generally less than 10 mph.
.SATURDAY...Mostly cloudy with slight chance of rain and snow.
Lows in the mid 20s. Highs in the upper 30s. Winds generally less
than 10 mph.
.SUNDAY...Partly cloudy with slight chance of rain and snow. Lows
in the lower 20s. Highs around 40. Winds generally less than
10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the mid 20s. Highs 42 to 47.

$$

WYZ416-202215-
West Wind River Mountains/East Zone Bridger Teton NF-
117 AM MDT Wed Sep 20 2017

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON
MDT FRIDAY...

.Today...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Isolated rain showers in the morning. Scattered
                    snow showers through the day. Scattered rain
                    showers in the afternoon. Chance of
                    precipitation 50 percent.
Max temperature.....41-46.
   24 hr trend......7 degrees warmer.
Min humidity........51-57 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with gusts
                    to around 25 mph until 1200, then 20 to 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then around
                    30 mph.
Mixing height.......2000 ft AGL until 1200, then 4500-5000 ft AGL.
Smoke dispersal.....Poor until 1200, then very good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Numerous rain showers in the
                    evening. Numerous snow showers through the
                    night. Scattered rain showers after midnight.
                    No snow accumulation. Chance of precipitation
                    70 percent.
Min temperature.....32-37.
   24 hr trend......10 degrees warmer.
Max humidity........81-87 percent.
   24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 30 mph until 2100. downslope/downvalley
                    4-7 mph after 2400.
Ridge top winds.....Southwest around 25 mph until 2100, then 10 to
                    15 mph.
LAL.................1.
Chc of wetting rain.37 percent.
Transport winds.....Southwest around 30 mph until 2100, then 15 to
                    20 mph.
Mixing height.......1000-2500 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Cloudy. Chance of rain showers in the morning.
                    Snow showers through the day. Rain showers
                    likely in the afternoon. No snow accumulation.
                    Chance of precipitation 90 percent.
Max temperature.....39-44.
   24 hr trend......3 degrees cooler.
Min humidity........66-72 percent.
   24 hr trend......14 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
                    southwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph.
LAL.................1.
Chc of wetting rain.32 percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing height.......1500-3500 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Snow showers likely and chance of showers in
the evening, then snow showers and showers likely after midnight.
Lows in the upper 20s. Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy with snow showers likely and chance of
showers. Lows in the upper 20s. Highs in the mid 30s. Winds
generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly cloudy with chance of snow and
rain. Lows 22 to 27. Highs in the upper 30s. Winds generally less
than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the mid 20s. Highs 39 to 44.

$$

WYZ288-202215-
East Wind River Mountains/South Shoshone NF-
117 AM MDT Wed Sep 20 2017

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON
MDT FRIDAY...

.Today...
Sky/weather.........Partly cloudy. Isolated snow showers in the
                    morning. Scattered snow showers and isolated
                    rain showers late in the morning, then
                    scattered rain showers early in the afternoon.
                    Chance of precipitation 50 percent.
Max temperature.....45-50.
   24 hr trend......9 degrees warmer.
Min humidity........47-53 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Windy. Southwest winds 20 to 25 mph with gusts
                    to around 35 mph until 1200, then around 35 mph
                    with gusts to around 50 mph.
Ridge top winds.....Southwest 25 to 30 mph until 1200, then 35 to
                    40 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph until 0900. around 45
                    mph after 1500.
Mixing height.......2000-2500 ft AGL until 1200, then 4500-5500 ft
                    AGL.
Smoke dispersal.....Fair to good until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Numerous snow showers early in the evening.
                    Scattered rain showers through the night.
                    Scattered snow showers early in the morning. No
                    snow accumulation. Chance of precipitation 70
                    percent.
Min temperature.....33-38.
   24 hr trend......9 degrees warmer.
Max humidity........76-82 percent.
   24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Windy. Southwest winds around 35 mph with gusts
                    to around 50 mph until 2100. around 10 mph with
                    gusts to around 15 mph after 2400.
Ridge top winds.....Southwest around 40 mph until 2100. around 15
                    mph after 2400.
LAL.................1.
Chc of wetting rain.20 percent until 2400, then 30 percent.
Transport winds.....Southwest around 45 mph until 2100. around 20
                    mph after 2400.
Mixing height.......2500-3000 ft AGL until 2400, then 500-1000 ft
                    AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Snow showers and chance of rain
                    showers. No snow accumulation. Chance of
                    precipitation 90 percent.
Max temperature.....41-46.
   24 hr trend......3 degrees cooler.
Min humidity........64-70 percent.
   24 hr trend......14 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with higher gusts.
Ridge top winds.....Southwest 15 to 20 mph.
LAL.................1.
Chc of wetting rain.32 percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing height.......1500 ft AGL until 1200, then 3500-5000 ft AGL.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Snow showers and chance of showers in the
evening, then snow showers and showers likely after midnight.
Lows in the upper 20s. Northeast winds around 10 mph.
.FRIDAY...Mostly cloudy with snow showers likely and chance of
showers. Lows in the upper 20s. Highs in the mid 30s. Southwest
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly cloudy with chance of snow and
rain. Lows 23 to 28. Highs in the upper 30s. Northeast winds
around 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the mid 20s. Highs 40 to 45.

$$

WYZ414-202215-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
117 AM MDT Wed Sep 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THURSDAY TO NOON
MDT FRIDAY...

.Today...
Sky/weather.........Mostly sunny then becoming partly cloudy then
                    becoming mostly cloudy. Isolated snow showers
                    early in the morning. Isolated rain showers in
                    the late morning and early afternoon, then
                    scattered rain showers late in the afternoon.
                    Chance of precipitation 50 percent.
Max temperature.....44-49.
   24 hr trend......10 degrees warmer.
Min humidity........48-54 percent.
   24 hr trend......11 percent drier.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with gusts
                    to around 25 mph until 1200, then 20 to 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then 30 to
                    35 mph.
Mixing height.......1000-1500 ft AGL until 1200, then 6000-6500 ft
                    AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Mostly cloudy. Numerous rain showers in the
                    evening, then widespread rain showers after
                    midnight. Chance of showers 90 percent.
Min temperature.....32-37.
   24 hr trend......8 degrees warmer.
Max humidity........83-89 percent.
   24 hr trend......2 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 30 mph until 2100. downslope/downvalley
                    4-7 mph after 2400.
Ridge top winds.....Southwest around 25 mph until 2100, then west
                    10 to 15 mph.
LAL.................1.
Chc of wetting rain.25 percent until 2400, then 45 percent.
Transport winds.....Southwest around 30 mph until 2100, then west
                    around 15 mph.
Mixing height.......3000-3500 ft AGL until 2400, then 1500 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Cloudy. Rain showers and snow showers. No snow
                    accumulation. Chance of precipitation 90
                    percent.
Max temperature.....36-41.
   24 hr trend......9 degrees cooler.
Min humidity........67-73 percent.
   24 hr trend......24 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
                    around 10 mph. Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph.
LAL.................1.
Chc of wetting rain.47 percent.
Transport winds.....West 15 to 20 mph.
Mixing height.......2000-3000 ft AGL.
Smoke dispersal.....Poor to fair.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Cloudy. Snow showers and showers likely in the
evening, then chance of snow showers and showers after midnight.
Lows in the upper 20s. Winds generally less than 10 mph.
.FRIDAY...Mostly cloudy with chance of snow showers and showers.
Lows in the upper 20s. Highs in the mid 30s. Winds generally less
than 10 mph.
.SATURDAY...Mostly cloudy. Slight chance of rain and snow. Lows
in the mid 20s. Highs in the lower 40s. Winds generally less than
10 mph.
.SUNDAY...Partly cloudy with slight chance of rain and snow. Lows
in the upper 20s. Highs in the lower 40s. Winds generally less
than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy with slight chance of
rain and snow. Lows in the upper 20s. Highs 45 to 50.

$$

WYZ278-202215-
Upper Green River Basin/Rock Springs BLM-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Partly cloudy. Isolated rain showers late in
                    the afternoon. Chance of showers 20 percent.
Max temperature.....51-56.
   24 hr trend......10 degrees warmer.
Min humidity........37-43 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with
                    higher gusts until 1200, then 20 to 25 mph with
                    gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 0900. around 35
                    mph after 1500.
Mixing height.......1500 ft AGL until 1200, then 7000-7500 ft AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Scattered rain showers early in the evening.
                    Isolated rain showers late in the evening, then
                    scattered rain showers after midnight. Chance
                    of showers 50 percent.
Min temperature.....33-38.
   24 hr trend......9 degrees warmer.
Max humidity........84-90 percent.
   24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 20 mph with gusts to around
                    30 mph until 2100. downslope/downvalley 4-7 mph
                    after 2400.
Ridge top winds.....West around 25 mph until 2100, then northwest
                    10 to 15 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....West around 30 mph until 2100, then northwest
                    around 15 mph.
Mixing height.......3500-4000 ft AGL until 2400, then 500-1000 ft
                    AGL.
Smoke dispersal.....Fair to good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers and snow
                    showers in the morning, then slight chance of
                    rain showers in the afternoon. Chance of
                    precipitation 50 percent.
Max temperature.....45-50.
   24 hr trend......6 degrees cooler.
Min humidity........55-61 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
                    10 to 15 mph.
Ridge top winds.....West 10 to 15 mph.
LAL.................1.
Chc of wetting rain.7 percent.
Transport winds.....West 15 to 20 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 4000-5000 ft
                    AGL.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly cloudy. Chance of showers in the
evening, then chance of showers and snow showers after midnight.
Lows in the lower 30s. Northwest winds around 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and snow showers. Lows
in the lower 30s. Highs in the mid 40s. West winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly cloudy with slight chance of
rain and snow. Lows 27 to 32. Highs in the mid 40s. Winds
generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Partly cloudy. Lows in the upper 20s.
Highs 48 to 53.

$$

WYZ277-202215-
Lincoln and Uinta Counties/Lower Elevations-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....56-61.
   24 hr trend......14 degrees warmer.
Min humidity........30-36 percent.
   24 hr trend......15 percent drier.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with gusts
                    to around 25 mph until 1200, then 20 to 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then 30 to
                    35 mph.
Mixing height.......1000 ft AGL until 1200, then 7500 ft AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated rain showers after midnight. Chance of
                    showers 20 percent.
Min temperature.....34-39.
   24 hr trend......7 degrees warmer.
Max humidity........83-89 percent.
   24 hr trend......4 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 20 mph with gusts to around
                    30 mph until 2100, then around 10 mph with
                    gusts to around 15 mph until 2400, then
                    downslope/downvalley 4-7 mph until 0300, then
                    northwest around 10 mph.
Ridge top winds.....West around 25 mph until 2100, then northwest
                    10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 30 mph until 2100, then northwest
                    around 15 mph.
Mixing height.......4000 ft AGL until 2400, then 1000 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly cloudy. Slight chance of snow showers in
                    the morning. Slight chance of rain showers
                    through the day. Chance of precipitation 20
                    percent.
Max temperature.....45-50.
   24 hr trend......11 degrees cooler.
Min humidity........57-63 percent.
   24 hr trend......26 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
                    northwest around 15 mph with higher gusts.
Ridge top winds.....Northwest 10 to 15 mph until 1500, then around
                    20 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Northwest 15 to 20 mph until 1500, then around
                    25 mph.
Mixing height.......2000 ft AGL until 1200, then 3000-4000 ft AGL.
Smoke dispersal.....Poor until 1200, then fair to good.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly cloudy. Chance of snow showers and
slight chance of showers in the evening, then slight chance of
showers and snow showers after midnight. Lows around 30.
Northwest winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of showers and snow
showers. Lows around 30. Highs in the lower 40s. West winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Partly cloudy with slight chance of
rain and snow. Lows 27 to 32. Highs in the upper 40s. Winds
generally less than 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows around 30. Highs
50 to 55.

$$

WYZ279-202215-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....61-66.
   24 hr trend......15 degrees warmer.
Min humidity........28-34 percent.
   24 hr trend......9 percent drier.
20-foot winds.......Breezy. Southwest winds around 10 mph and gusty
                    until 0900, then 20 to 25 mph with gusts to
                    around 35 mph.
Ridge top winds.....Southwest around 15 mph until 0900, then 25 to
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then 30 to
                    35 mph.
Mixing height.......1500-2000 ft AGL until 1200, then 7000-7500 ft
                    AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....40-45.
   24 hr trend......10 degrees warmer.
Max humidity........66-72 percent.
   24 hr trend......21 percent drier.
Humidity recovery...Good.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 30 mph until 2100, then around 10 mph
                    with gusts to around 15 mph.
Ridge top winds.....Southwest around 25 mph until 2100, then around
                    15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph until 2100, then around
                    20 mph.
Mixing height.......4000-4500 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Partly cloudy.
Max temperature.....60-65.
   24 hr trend......Unchanged.
Min humidity........29-35 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......Breezy. Southwest winds 10 to 15 mph with
                    higher gusts until 1200, then around 25 mph
                    with gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then around
                    30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then 30 to
                    35 mph.
Mixing height.......1500 ft AGL until 1200, then 8000-8500 ft AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening, then chance of snow showers and slight chance of showers
after midnight. Lows in the upper 30s. Southwest winds around
10 mph.
.FRIDAY...Cooler. Partly cloudy. Chance of showers and snow
showers. Lows in the upper 30s. Highs in the upper 40s. West
winds around 10 mph.
.SATURDAY...Mostly cloudy. Chance of rain and slight chance of
snow. Lows around 30. Highs around 50. Northeast winds around
10 mph.
.SUNDAY...Mostly cloudy. Slight chance of rain and snow. Lows in
the lower 30s. Highs in the upper 40s. Northeast winds around
10 mph.
.MONDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 40s.
.TUESDAY...Mostly sunny. Highs in the mid 50s.

$$

WYZ289-202215-
Granite/Green/Ferris/Rattlesnake Mountains-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Max temperature.....59-64.
   24 hr trend......13 degrees warmer.
Min humidity........25-31 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Windy. Southwest winds 20 to 25 mph with gusts
                    to around 35 mph until 1200, then around 30 mph
                    with gusts to around 40 mph.
Ridge top winds.....Southwest 25 to 30 mph until 1500, then around
                    35 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 25 mph until 0900, then 35 to
                    40 mph.
Mixing height.......2000-2500 ft AGL until 1200, then 6500 ft AGL.
Smoke dispersal.....Fair to good until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....41-46.
   24 hr trend......9 degrees warmer.
Max humidity........64-70 percent.
   24 hr trend......10 percent drier.
Humidity recovery...Good.
20-foot winds.......Breezy. Southwest winds around 25 mph with
                    gusts to around 30 mph until 2100, then around
                    10 mph with gusts to around 15 mph.
Ridge top winds.....Southwest around 30 mph until 2100, then around
                    15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 30 mph until 2100, then 15 to
                    20 mph.
Mixing height.......4000 ft AGL until 2400, then 500 ft AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Partly cloudy.
Max temperature.....61-66.
   24 hr trend......1 degree warmer.
Min humidity........32-38 percent.
   24 hr trend......7 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph with higher gusts
                    until 1200, then around 20 mph with gusts to
                    around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then around
                    25 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then 25 to
                    30 mph.
Mixing height.......1500 ft AGL until 1200, then 8000-8500 ft AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Slight chance of showers in the
evening, then chance of showers and snow showers after midnight.
Lows in the mid 30s. North winds around 10 mph.
.FRIDAY...Cooler. Mostly cloudy with chance of showers and snow
showers. Lows in the mid 30s. Highs in the upper 40s. North winds
around 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly cloudy with chance of rain and
snow. Lows in the lower 30s. Highs 42 to 47. Northeast winds
around 10 mph.
.MONDAY...Partly cloudy with slight chance of rain and snow. Lows
around 30. Highs in the mid 40s.
.TUESDAY...Partly cloudy. Highs in the lower 50s.

$$

WYZ300-202215-
Casper Mountain-
117 AM MDT Wed Sep 20 2017

.Today...
Sky/weather.........Mostly sunny.
Max temperature.....59-64.
   24 hr trend......9 degrees warmer.
Min humidity........22-28 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Breezy. Southwest winds 20 to 25 mph. Gusts up
                    to 35 mph until 1500, then 40 mph.
Ridge top winds.....Southwest 25 to 30 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 30 to 35 mph.
Mixing height.......2000 ft AGL until 1200, then 6000-6500 ft AGL.
Smoke dispersal.....Fair to good until 1200, then excellent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....42-47.
   24 hr trend......11 degrees warmer.
Max humidity........54-60 percent.
   24 hr trend......26 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Southwest winds around 20 mph with gusts to
                    around 30 mph until 2100, then 10 to 15 mph and
                    gusty.
Ridge top winds.....Southwest around 25 mph until 2100, then south
                    around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph.
Mixing height.......3500 ft AGL until 2400, then 500 FT AGL.
Smoke dispersal.....Good until 2400, then poor.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.THURSDAY...
Sky/weather.........Mostly sunny.
Max temperature.....64-69.
   24 hr trend......6 degrees warmer.
Min humidity........23-29 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 10 to 15 mph with higher gusts
                    until 1200, then around 20 mph with gusts to
                    around 25 mph.
Ridge top winds.....Southwest 15 to 20 mph until 1200, then around
                    25 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 20 to 25 mph until 1200, then 25 to
                    30 mph.
Mixing height.......1500 ft AGL until 1200, then 8500-9000 ft AGL.
Smoke dispersal.....Poor until 1200, then excellent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.


.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. East winds
around 10 mph.
.FRIDAY...Cooler. Mostly cloudy. Showers likely and chance of
snow showers. Lows in the lower 40s. Highs in the lower 50s. East
winds around 10 mph.
.SATURDAY THROUGH SUNDAY...Cloudy with chance of rain and snow.
Lows 32 to 37. Highs 41 to 46. Northeast winds around 10 mph.
.MONDAY...Mostly cloudy. Slight chance of rain and snow. Lows
around 30. Highs in the mid 40s.
.TUESDAY...Partly cloudy. Highs in the lower 50s.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.