Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
491
FNUS55 KRIW 161149
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
Issued by National Weather Service Billings MT
549 AM MDT Wed Jul 16 2025
.DISCUSSION...
...Yellowstone NP and Teton dispatch areas (includes fire weather
zones 140...414...415...and 416)...
Slightly higher relative humidity and slightly cooler across all
zones today with breezy westerly winds. Winds are forecast to be
highest across zone 414 with occasional gusts around 30 mph during
the afternoon hours. Little to no shower or thunderstorm chances
today. Slightly warmer, more gusty, and lower relative humidity on
Thursday.
...Cody dispatch area (includes fire weather zones 275...276...
282...283...285...286...287...288...and 289)...
Higher relative humidity and much cooler across the dispatch area
today with northerly winds. Isolated shower and thunderstorm
chances (around 30%) between 1200L and 1600L across higher
elevations. Mixing and smoke dispersal will range from fair to
good this afternoon and early evening. Much lower relative
humidity and around 20 degrees warmer on Thursday across the
entire dispatch area.
...Casper dispatch area (includes fire weather zones 277...278...
279...280...281...285...289...and 300)...
Slightly higher relative humidity values and breezy winds will
create elevated to near critical fire weather conditions for all
west of the Divide zones this afternoon, especially zones 277 and
278. Mostly virga shower/dry thunderstorm potential exists across
zones 279 and 289 between 1500L and 2100L. Virga showers/dry
thunderstorms will be capable of gusty and erratic outflows around
40mph. Much cooler with higher relative humidity and northerly
winds for east of the Divide zones. Good relative humidity
recovery expected tonight across all zones. Drier, windier, and
warmer conditions across the dispatch area on Thursday.
...Thunderstorms imply strong gusty and erratic winds...
WYZ280-171400-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of thunderstorms in the morning.
Chance of showers through the day. Chance of
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....67-72.
24 hr trend......10 degrees cooler.
Min humidity........63-69 percent.
24 hr trend......20 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast 15 to 20 mph.
Chc of wetting rain.10 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
in the evening. Chance of precipitation 20
percent.
Chance of thunder...15 percent.
Min temperature.....50-55.
24 hr trend......3 degrees cooler.
Max humidity........89-95 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 30 mph until 0300, then southeast and
gusty.
Ridge top winds.....East 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......1600-3600 ft agl until 2400, then 600-1400 ft
agl.
Smoke dispersal.....Poor to fair.
.THURSDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Chance of thunder...0 percent.
Max temperature.....86-91.
24 hr trend......21 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......40 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph until 1500, then west.
Gusts up to 25 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1600-3600 ft agl until 1200, then 8600-10600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the upper 80s. North winds around
10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs around 90.
West winds around 15 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs around 90.
$$
WYZ283-171400-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Slight chance of showers early in the morning.
Slight chance of showers and thunderstorms in
the afternoon. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Max temperature.....68-73.
24 hr trend......12 degrees cooler.
Min humidity........48-54 percent.
24 hr trend......23 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph with gusts to
around 25 mph.
Ridge top winds.....Northeast around 15 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......1000-2600 ft agl until 1200, then 2600-4600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....46-51.
24 hr trend......3 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East winds 10 to 15 mph with gusts to around 30
mph until 0300, then downslope/downvalley 4-7
mph.
Ridge top winds.....East 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....East 15 to 20 mph.
Mixing Height.......1800-3800 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....85-90.
24 hr trend......17 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......28 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 25 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 7200-9200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds
around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows in the upper 50s. Highs in the
upper 80s. West winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
80s. West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs around 90.
$$
WYZ285-171400-
South Bighorn Mountains-
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers until late afternoon. Slight
chance of thunderstorms through the day. Slight
chance of showers late in the afternoon. Chance
of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......11 degrees cooler.
Min humidity........65-71 percent.
24 hr trend......25 percent wetter.
20-foot winds.......North winds around 10 mph until 1500, then
northeast. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph.
Chc of wetting rain.10 percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......600-2600 ft agl.
Smoke dispersal.....Poor.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree cooler.
Max humidity........81-87 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
south. Gusts up to 20 mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......20 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......45 percent drier.
20-foot winds.......Southwest winds around 10 mph with gusts to
around 25 mph.
Ridge top winds.....Southwest around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1000-3000 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 70s.
North winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs around 80. West winds
around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. West winds around 15 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the mid 50s.
Highs 79 to 84.
$$
WYZ281-171400-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy. Showers likely and slight chance
of thunderstorms in the morning, then chance of
showers and thunderstorms in the afternoon.
Chance of precipitation 70 percent.
Chance of thunder...30 percent.
Max temperature.....57-62.
24 hr trend......9 degrees cooler.
Min humidity........73-79 percent.
24 hr trend......17 percent wetter.
20-foot winds.......North winds 10 to 15 mph with higher gusts.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.25 percent until 1200, then 5 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......2 degrees cooler.
Max humidity........87-93 percent.
24 hr trend......Unchanged.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2400, then
south. Gusts up to 25 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 2400, then south.
Mixing Height.......1200-3200 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......24 degrees warmer.
Min humidity........27-33 percent.
24 hr trend......42 percent drier.
20-foot winds.......South winds around 15 mph with gusts to around
25 mph.
Ridge top winds.....South around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 20 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. North
winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Northeast winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
South winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs around 90.
West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs in the upper 80s.
$$
WYZ282-171400-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Cloudy then becoming partly cloudy. Chance of
showers and slight chance of thunderstorms
in the morning.
Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....62-67.
24 hr trend......11 degrees cooler.
Min humidity........54-60 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Northwest winds around 10 mph with higher
gusts.
Ridge top winds.....Northwest around 15 mph.
Chc of wetting rain.10 percent.
Transport winds.....North around 15 mph.
Mixing Height.......1400-2600 ft agl until 1200, then 2600-4600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree cooler.
Max humidity........79-85 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Downslope/downvalley 4-7 mph until 2100, then
east around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....East around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 2400, then southeast.
Mixing Height.......1600-3600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......20 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......31 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then south
around 10 mph until 1500, then north. Gusts up
to 20 mph.
Ridge top winds.....South around 10 mph until 1200, then east.
Chc of wetting rain.Zero percent.
Transport winds.....South around 10 mph until 1200, then west.
Mixing Height.......1000-3000 ft agl until 1200, then 5400-7400 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. North
winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
90s. Southwest winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs around 90.
$$
WYZ275-171400-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of
thunderstorms early in the morning, then slight
chance of showers in the late morning and early
afternoon. Slight chance of thunderstorms early
in the afternoon. Chance of precipitation 50
percent.
Chance of thunder...20 percent.
Max temperature.....61-66.
24 hr trend......7 degrees cooler.
Min humidity........52-58 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 30
mph until 1200, then 20 mph.
Ridge top winds.....Northwest 15 to 20 mph.
Chc of wetting rain.10 percent until 1200, then zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1200-2600 ft agl until 1200, then 2600-4600 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree cooler.
Max humidity........80-86 percent.
24 hr trend......6 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....North around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 2400, then southeast.
Mixing Height.......1400-3400 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......18 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......27 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph until 1500, then east.
Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph.
Mixing Height.......800-2800 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. North
winds around 10 mph.
.FRIDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Winds generally less than 10 mph.
.SATURDAY THROUGH SUNDAY...Mostly clear. Lows in the upper 50s.
Highs 88 to 93. Southwest winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
80s.
.TUESDAY...Partly cloudy. Highs in the upper 80s.
$$
WYZ276-171400-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers in the morning.
Slight chance of thunderstorms in the
afternoon. Chance of precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....60-65.
24 hr trend......4 degrees cooler.
Min humidity........60-66 percent.
24 hr trend......5 percent wetter.
20-foot winds.......North winds 10 to 15 mph. Gusts up to 30 mph
until 1200, then 20 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1600-3600 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree warmer.
Max humidity........80-86 percent.
24 hr trend......13 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph and gusty until
2100, then downslope/downvalley 4-7 mph.
Ridge top winds.....Northeast around 10 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 2400, then south.
Mixing Height.......1200-3200 ft agl until 2400, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......20 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......35 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southeast around 10 mph until 1500, then
northeast. Gusts up to 25 mph.
Ridge top winds.....South around 15 mph until 1200, then northeast.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 6200-8200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 10 mph.
.FRIDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
Northwest winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s. West
winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers. Lows in the
upper 50s. Highs in the mid 80s. West winds around 10 mph.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the mid 80s.
$$
WYZ287-171400-
Owl Creek Mountains-
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Chance of showers through the day. Chance of
thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....60-65.
24 hr trend......11 degrees cooler.
Min humidity........58-64 percent.
24 hr trend......18 percent wetter.
20-foot winds.......North winds around 15 mph. Gusts up to 30 mph
until 1200, then 20 mph.
Ridge top winds.....North around 20 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....North around 20 mph.
Mixing Height.......1200-3200 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......1 degree warmer.
Max humidity........80-86 percent.
24 hr trend......11 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2100, then
southeast until 2400, then downslope/downvalley
4-7 mph until 0300, then southwest around 10
mph. Gusts up to 20 mph.
Ridge top winds.....East around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then south.
Mixing Height.......1000-3000 ft agl until 2400, then 200-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......20 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......36 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph until 1500, then
northwest. Gusts up to 25 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......800-2800 ft agl until 1200, then 6000-8000 ft
agl.
Smoke dispersal.....Poor until 1200, then very good.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 10 mph.
.FRIDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s. Northwest winds
around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
West winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers. Lows in the
upper 50s. Highs in the mid 80s. West winds around 10 mph.
.MONDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s.
.TUESDAY...Mostly sunny. Slight chance of showers in the
afternoon. Highs in the lower 80s.
$$
WYZ286-171400-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Chance of showers early in the
morning, then slight chance of showers early in
the morning. Slight chance of thunderstorms in
the late morning and afternoon. Chance of
precipitation 50 percent.
Chance of thunder...20 percent.
Max temperature.....57-62.
24 hr trend......9 degrees cooler.
Min humidity........55-61 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph. Gusts up to 25 mph.
Ridge top winds.....East around 15 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Southeast around 15 mph until 1200, then
southwest.
Mixing Height.......1800-3800 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......2 degrees warmer.
Max humidity........77-83 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Southeast winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, then
west around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southeast around 15 mph until 2400, then
southwest.
Chc of wetting rain.Zero percent.
Transport winds.....South around 15 mph until 2400, then southwest.
Mixing Height.......1200-3200 ft agl until 2400, then 400-1200 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......14 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......33 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West around 15 mph until 1200, then around 25
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 1200, then around 30
mph.
Mixing Height.......2000-4000 ft agl until 1200, then 7400-9400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. West winds
around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with chance of showers
and thunderstorms. Lows around 50. Highs in the lower 70s. West
winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers. Lows in the
upper 40s. Highs in the mid 70s. West winds around 15 mph.
.MONDAY...Mostly clear. Slight chance of showers. Lows around 50.
Highs in the lower 70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ140-171400-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Slight chance of showers early in the morning.
Slight chance of showers and thunderstorms late
in the afternoon. Chance of precipitation 20
percent.
Chance of thunder...10 percent.
Max temperature.....67-72.
24 hr trend......7 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......9 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1500, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....North around 10 mph until 1200, then west.
Chc of wetting rain.Less than 10 percent.
Transport winds.....North around 10 mph until 1200, then west.
Mixing Height.......1200-3200 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......1 degree warmer.
Max humidity........67-73 percent.
24 hr trend......20 percent drier.
Humidity recovery...Good.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Southwest around 10 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 2400, then south.
Mixing Height.......2800-4800 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......7 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......13 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 7600-9600 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. Winds
generally less than 10 mph.
.FRIDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s. Winds
generally less than 10 mph.
.SATURDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. Southwest winds around 10 mph.
.MONDAY...Partly cloudy. Lows in the mid 40s. Highs in the lower
70s.
.TUESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ415-171400-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....69-74.
24 hr trend......6 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph. Gusts up to 20 mph.
Ridge top winds.....Southwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......1800-3800 ft agl until 1200, then 5800-7800 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good to very
good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......1 degree cooler.
Max humidity........64-70 percent.
24 hr trend......21 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
southeast around 10 mph. Gusts up to 20 mph.
Ridge top winds.....West around 10 mph until 2400, then southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3000-5000 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Fair to good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......5 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......9 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 30 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 8000-10000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows 45 to 50. Highs in the mid 70s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 40s.
Highs in the mid 70s.
$$
WYZ416-171400-
West Wind River Mountains/East Zone Bridger Teton NF-
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly sunny. Slight chance of showers early in
the morning. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...20 percent.
Max temperature.....66-71.
24 hr trend......6 degrees cooler.
Min humidity........23-29 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 6800-8800 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....41-46.
24 hr trend......Unchanged.
Max humidity........61-67 percent.
24 hr trend......15 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 20
mph.
Ridge top winds.....Northwest around 15 mph until 2400, then
southeast.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3200-5200 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......4 degrees warmer.
Min humidity........21-27 percent.
24 hr trend......2 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph until 1500, then around 20 mph.
Gusts up to 30 mph.
Ridge top winds.....West 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 20 mph until 1200, then west
around 30 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 8200-10200 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. West winds
around 10 mph.
.FRIDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs around 70. West winds
around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the mid 40s.
Highs in the lower 70s.
$$
WYZ288-171400-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers and
thunderstorms in the morning. Chance of showers
and thunderstorms in the afternoon. Chance of
precipitation 40 percent.
Chance of thunder...30 percent.
Max temperature.....66-71.
24 hr trend......10 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......21 percent wetter.
20-foot winds.......Southwest winds around 10 mph until 0900, then
north until 1200, then northwest. Gusts up to
25 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then north.
Chc of wetting rain.10 percent.
Transport winds.....West 15 to 20 mph.
Mixing Height.......1400-3400 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor to fair until 1200, then good.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......1 degree cooler.
Max humidity........77-83 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph with gusts to around
25 mph until 2400, then downslope/downvalley
4-7 mph.
Ridge top winds.....East around 15 mph until 2400, then west.
Chc of wetting rain.Zero percent.
Transport winds.....East around 15 mph until 2400, then southwest.
Mixing Height.......1600-3600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....73-78.
24 hr trend......10 degrees warmer.
Min humidity........19-25 percent.
24 hr trend......20 percent drier.
20-foot winds.......West winds 10 to 15 mph until 1200, then around
20 mph. Gusts up to 35 mph.
Ridge top winds.....West around 15 mph until 1200, then around 25
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 25 to 30 mph.
Mixing Height.......2200-4200 ft agl until 1200, then 8400-10400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 10 mph.
.FRIDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. West winds around
10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
West winds around 10 mph.
.SUNDAY...Mostly clear. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s. West winds around 15 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the lower 50s.
Highs in the mid 70s.
$$
WYZ414-171400-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....70-75.
24 hr trend......5 degrees cooler.
Min humidity........20-26 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2200-4200 ft agl until 1200, then 6400-8400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then very good to
excellent.
.TONIGHT...
Sky/weather.........Clear.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......1 degree warmer.
Max humidity........61-67 percent.
24 hr trend......30 percent drier.
Humidity recovery...Good.
20-foot winds.......West winds 10 to 15 mph with gusts to around 30
mph until 2400, then downslope/downvalley 4-7
mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest 10 to 15 mph.
Mixing Height.......3200-5200 ft agl until 2400, then 400-1000 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......5 degrees warmer.
Min humidity........20-26 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 35 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 30 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 10 mph.
.FRIDAY THROUGH SATURDAY...Partly cloudy with slight chance of
showers and thunderstorms. Lows around 50. Highs 73 to 78.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Southwest winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows around 50. Highs in
the mid 70s.
$$
WYZ278-171400-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 20 percent.
Chance of thunder...10 percent.
Max temperature.....74-79.
24 hr trend......4 degrees cooler.
Min humidity........17-23 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then
southwest 10 to 15 mph with gusts to around 25
mph until 1500, then west with gusts to around
25 mph.
Ridge top winds.....South around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min temperature.....43-48.
24 hr trend......3 degrees cooler.
Max humidity........61-67 percent.
24 hr trend......4 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest around 15 mph until 2400, then east.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then southeast.
Mixing Height.......4600-6600 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....77-82.
24 hr trend......4 degrees warmer.
Min humidity........17-23 percent.
24 hr trend......1 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 15 mph with gusts to around 30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then around 25
mph.
Mixing Height.......2800-4800 ft agl until 1200, then 10600-12600
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows around 50. Northwest winds
around 10 mph.
.FRIDAY...Mostly cloudy with slight chance of showers and
thunderstorms. Lows around 50. Highs around 80. West winds around
10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs in the upper 70s.
West winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
80s. West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 40s.
Highs in the lower 80s.
$$
WYZ277-171400-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....75-80.
24 hr trend......3 degrees cooler.
Min humidity........16-22 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 1200, then around 25
mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9200-11200 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Clear.
Chance of thunder...0 percent.
Min temperature.....47-52.
24 hr trend......2 degrees cooler.
Max humidity........50-56 percent.
24 hr trend......18 percent drier.
Humidity recovery...Moderate.
20-foot winds.......Northwest winds around 15 mph with gusts to
around 25 mph until 2100, then
downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 10 to 15 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......4200-6200 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good to very good until 2400, then poor.
.THURSDAY...
Sky/weather.........Sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........15-21 percent.
24 hr trend......1 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then around 25
mph.
Mixing Height.......3200-5200 ft agl until 1200, then 10800-12800
ft agl.
Smoke dispersal.....Good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Winds
generally less than 10 mph.
.FRIDAY...Mostly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 80s.
Winds generally less than 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 50. Highs in the upper 70s. West winds
around 10 mph.
.SUNDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
West winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the lower 50s.
Highs in the lower 80s.
$$
WYZ279-171400-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning. Chance of showers and thunderstorms in
the afternoon. Chance of precipitation 40
percent.
Chance of thunder...30 percent.
Max temperature.....77-82.
24 hr trend......4 degrees cooler.
Min humidity........29-35 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 25 mph.
Ridge top winds.....West around 10 mph until 1200, then around 20
mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2600-4600 ft agl until 1200, then 9000-11000 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min temperature.....50-55.
24 hr trend......3 degrees cooler.
Max humidity........66-72 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Good.
20-foot winds.......West winds around 10 mph with gusts to around
25 mph until 2100, then east with gusts to
around 25 mph until 2400, then
downslope/downvalley 4-7 mph.
Ridge top winds.....West around 15 mph until 2400, then south.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2400, then south.
Mixing Height.......3400-5400 ft agl until 2400, then 400-600 ft
agl.
Smoke dispersal.....Good until 2400, then poor.
.THURSDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Chance of thunder...0 percent.
Max temperature.....80-85.
24 hr trend......4 degrees warmer.
Min humidity........25-31 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph with gusts to around 30 mph.
Ridge top winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west
around 20 mph.
Mixing Height.......3000-5000 ft agl until 1200, then 10000-12000
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southwest
winds around 10 mph.
.FRIDAY...Mostly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 80s.
Southwest winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 80s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the mid 50s.
Highs in the mid 80s.
$$
WYZ289-171400-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of showers in the
morning, then chance of showers and
thunderstorms in the afternoon. Chance of
precipitation 50 percent.
Chance of thunder...40 percent.
Max temperature.....71-76.
24 hr trend......9 degrees cooler.
Min humidity........35-41 percent.
24 hr trend......22 percent wetter.
20-foot winds.......North winds around 10 mph and gusty until 1200,
then 10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....North 15 to 20 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......1200-3200 ft agl until 1200, then 4200-6200 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
in the evening. Patchy fog early in the
morning. Chance of precipitation 20 percent.
Chance of thunder...10 percent.
Min temperature.....48-53.
24 hr trend......3 degrees cooler.
Max humidity........81-87 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds 10 to 15 mph until 0300, then
downslope/downvalley 4-7 mph. Gusts up to 30
mph.
Ridge top winds.....Northeast around 20 mph until 2400, then east
around 10 mph.
Chc of wetting rain.Less than 10 percent.
Transport winds.....Northeast around 20 mph until 2400, then east
around 10 mph.
Mixing Height.......2000-4000 ft agl until 2400, then 400-800 ft
agl.
Smoke dispersal.....Poor to fair.
.THURSDAY...
Sky/weather.........Mostly sunny. Areas of fog early in the
morning.
Chance of thunder...0 percent.
Max temperature.....83-88.
24 hr trend......13 degrees warmer.
Min humidity........12-18 percent.
24 hr trend......24 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph. Gusts up to 30 mph.
Ridge top winds.....Southwest 15 to 20 mph.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2400-4400 ft agl until 1200, then 10400-12400
ft agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 50s. West winds
around 10 mph.
.FRIDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s. West
winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds around 15 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs in the mid 80s.
$$
WYZ300-171400-
Casper Mountain-
549 AM MDT Wed Jul 16 2025
.TODAY...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
in the morning. Chance of showers through the
day. Chance of thunderstorms in the afternoon.
Chance of precipitation 50 percent.
Chance of thunder...50 percent.
Max temperature.....64-69.
24 hr trend......11 degrees cooler.
Min humidity........67-73 percent.
24 hr trend......34 percent wetter.
20-foot winds.......South winds around 10 mph until 0900, then
northwest until 1500, then northeast. Gusts up
to 15 mph.
Ridge top winds.....West around 15 mph until 1200, then north.
Chc of wetting rain.5 percent until 1200, then 15 percent.
Transport winds.....Southwest around 15 mph until 1200, then north.
Mixing Height.......1400-3400 ft agl.
Smoke dispersal.....Poor to fair.
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
early in the evening. Slight chance of showers
in the evening. Chance of precipitation 20
percent.
Chance of thunder...20 percent.
Min temperature.....49-54.
24 hr trend......1 degree cooler.
Max humidity........87-93 percent.
24 hr trend......3 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
southeast. Gusts up to 25 mph.
Ridge top winds.....East around 15 mph until 2400, then southeast.
Chc of wetting rain.Less than 10 percent.
Transport winds.....East around 15 mph until 2400, then southeast.
Mixing Height.......400-2400 ft agl.
Smoke dispersal.....Poor.
.THURSDAY...
Sky/weather.........Mostly sunny.
Chance of thunder...0 percent.
Max temperature.....81-86.
24 hr trend......16 degrees warmer.
Min humidity........18-24 percent.
24 hr trend......40 percent drier.
20-foot winds.......Southwest winds around 10 mph until 1200, then
west. Gusts up to 25 mph.
Ridge top winds.....Southwest around 15 mph until 1200, then west.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 1200, then west
around 25 mph.
Mixing Height.......2000-4000 ft agl until 1200, then 9400-11400 ft
agl.
Smoke dispersal.....Fair to good until 1200, then excellent.
.Forecast days 3 through 7......
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 50s. Winds
generally less than 10 mph.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the lower 80s. Southwest winds
around 10 mph.
.SATURDAY...Partly cloudy with chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 70s.
Southwest winds around 10 mph.
.SUNDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. Southwest winds around 10 mph.
.MONDAY THROUGH TUESDAY...Mostly clear. Lows in the upper 50s.
Highs in the lower 80s.
$$