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

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000
FNUS55 KCYS 201220
FWFCYS

Fire Weather Planning Forecast for Southeast Wyoming/Western Nebraska
National Weather Service Cheyenne WY
620 AM MDT Fri Apr 20 2018

.DISCUSSION...

No fire weather concerns. A cool/unsettled weekend ahead with good
chances for measurable rain/snow across all of southeast Wyoming &
the western Nebraska Panhandle.

WYZ301-202215-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1100. rain likely.
                    Little or no snow accumulation.
Max temperature.....43-48.
   24 hr trend......14 degrees cooler.
Min humidity........55-61 percent.
   24 hr trend......35 percent wetter.
20-foot winds.......East around 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....Southeast around 20 mph.
Mixing height.......1800-2400 ft AGL increasing to 3500-4800 ft AGL
                    in the afternoon.
Smoke dispersal.....Fair to good (40900-73200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow with rain likely until 2400, then
                    chance of snow and rain. Snow accumulation up
                    to 1 inch.
Min temperature.....31-36.
   24 hr trend......3 degrees cooler.
Max humidity........91-97 percent.
   24 hr trend......29 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast 5 to 10 mph. Gusts up to 25 mph
                    decreasing to 15 mph after midnight.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....Southeast 20 to 25 mph.
Mixing height.......2000-3400 ft AGL.
Smoke dispersal.....Poor to good (37300-60800 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Slight chance of snow until 0900. slight chance
                    of rain after 0700 until 1200.
Max temperature.....52-57.
   24 hr trend......9 degrees warmer.
Min humidity........39-45 percent.
   24 hr trend......19 percent drier.
20-foot winds.......South around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....South around 10 mph.
Mixing height.......2600-3100 ft AGL increasing to 5800-6900 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to fair (28000-54700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows in the lower 30s. Highs around 60.
Southeast winds around 5 mph.
.MONDAY...Partly cloudy. Chance of rain. Lows in the upper 30s.
Highs around 60. Southeast winds around 10 mph.
.TUESDAY...Mostly cloudy. Chance of rain and snow. Lows around
30. Highs in the mid 50s. Northwest winds around 15 mph.
.WEDNESDAY...Mostly clear. Lows around 30. Highs in the upper
50s.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
lower 60s.

$$

WYZ302-202215-
North Laramie Range/Medicine Bow NF-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1500. rain likely
                    after 0900 until 1500, then rain and snow. Snow
                    accumulation up to 2 inches.
Max temperature.....37-42.
   24 hr trend......16 degrees cooler.
Min humidity........60-66 percent.
   24 hr trend......43 percent wetter.
20-foot winds.......East 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Southeast around 15 mph.
Mixing height.......1400-3400 ft AGL.
Smoke dispersal.....Poor to fair (17000-42200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2100. snow until 2400, then
                    snow likely. Snow accumulation up to 2 inches.
Min temperature.....26-31.
   24 hr trend......6 degrees cooler.
Max humidity........92-98 percent.
   24 hr trend......27 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East 5 to 10 mph.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Southeast 10 to 15 mph.
Mixing height.......1700-2700 ft AGL.
Smoke dispersal.....Poor (15300-32600 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of rain until 1200. chance of snow.
                    slight chance of rain after 1200.
Max temperature.....44-50.
   24 hr trend......10 degrees warmer.
Min humidity........50-56 percent.
   24 hr trend......11 percent drier.
20-foot winds.......Southwest around 5 mph.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Southwest 5 to 10 mph.
Mixing height.......2700-3300 ft AGL increasing to 4700-5600 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (10600-39100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Warmer. Mostly clear. Lows in the lower 30s. Highs in
the mid 50s. West winds around 5 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the mid 30s.
Highs in the mid 50s. South winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of snow and slight chance of
rain. Lows in the mid 20s. Highs in the upper 40s. North winds
around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
mid 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
mid 50s.

$$

WYZ303-202215-
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1400. rain likely.
                    snow after 1700. Little or no snow
                    accumulation.
Max temperature.....42-47.
   24 hr trend......15 degrees cooler.
Min humidity........54-60 percent.
   24 hr trend......47 percent wetter.
20-foot winds.......Northeast 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....East around 10 mph increasing to northeast
                    around 25 mph in the afternoon.
Mixing height.......1800-2500 ft AGL increasing to 2800-4700 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (16300 knot-ft) increasing to good (79300
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2400. snow after 1900 until
                    2400, then snow likely. Snow accumulation up to
                    2 inches.
Min temperature.....28-33.
   24 hr trend......5 degrees cooler.
Max humidity........89-95 percent.
   24 hr trend......28 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast around 15 mph decreasing to around 5
                    mph after midnight. Gusts up to 25 mph.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....Northeast around 25 mph decreasing to around 10
                    mph after midnight.
Mixing height.......1900-3100 ft AGL.
Smoke dispersal.....Poor to fair (19500-53400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1200, then partly cloudy.
                    Slight chance of snow until 1100. slight chance
                    of rain after 0900 until 1200.
Max temperature.....49-55.
   24 hr trend......8 degrees warmer.
Min humidity........38-44 percent.
   24 hr trend......19 percent drier.
20-foot winds.......West 5 to 10 mph and gusty.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing height.......2700-3300 ft AGL increasing to 5500-6700 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (19500 knot-ft) increasing to good (77400
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows in the lower 30s. Highs in the upper
50s. Southwest winds around 5 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
mid 30s. Highs in the upper 50s. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of rain and snow.
Lows in the upper 20s. Highs in the lower 50s. North winds around
10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
mid 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s.

$$

WYZ304-202215-
Southwest Carbon County-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Rain likely until 1500, then rain.
Max temperature.....43-48.
   24 hr trend......19 degrees cooler.
Min humidity........58-64 percent.
   24 hr trend......56 percent wetter.
20-foot winds.......North 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Northeast around 10 mph increasing to around 25
                    mph in the afternoon.
Mixing height.......2100-3500 ft AGL.
Smoke dispersal.....Poor (17300 knot-ft) increasing to good (71700
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain likely until 2300. snow likely
                    after 2000 until 2400, then chance of snow.
                    Little or no snow accumulation.
Min temperature.....27-32.
   24 hr trend......4 degrees cooler.
Max humidity........91-97 percent.
   24 hr trend......19 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North 10 to 15 mph. Gusts up to 30 mph
                    decreasing to 20 mph after midnight.
LAL.................1.
Chc of wetting rain.30 percent.
Transport winds.....Northeast around 30 mph becoming north around
                    15 mph after midnight.
Mixing height.......1600-2600 ft AGL.
Smoke dispersal.....Poor to good (30700-60700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1200, then partly cloudy.
Max temperature.....54-59.
   24 hr trend......13 degrees warmer.
Min humidity........30-36 percent.
   24 hr trend......30 percent drier.
20-foot winds.......Northwest around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing height.......2600-3100 ft AGL increasing to 6400-7100 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (24800 knot-ft) increasing to good (82500
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows around 30. Highs around 60.
Southwest winds around 5 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
mid 30s. Highs around 60. South winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain. Lows in the
upper 20s. Highs in the mid 50s. North winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs around
60.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 60s.

$$

WYZ305-202215-
Sierra Madre Range/Medicine Bow NF-
620 AM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM MDT SATURDAY...

.TODAY...
Sky/weather.........Cloudy. Rain and snow until 0900, then rain and
                    snow likely until 1200, then rain and snow.
                    Snow accumulation up to 5 inches.
Max temperature.....37-43.
   24 hr trend......15 degrees cooler.
Min humidity........65-71 percent.
   24 hr trend......59 percent wetter.
20-foot winds.......East around 5 mph shifting to the north in the
                    afternoon. Gusts up to 15 mph.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Southeast around 10 mph increasing to northeast
                    around 20 mph in the afternoon.
Mixing height.......2100-3600 ft AGL.
Smoke dispersal.....Poor to fair (10600-53500 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Snow and rain until 2400, then chance
                    of snow. Snow accumulation up to 3 inches.
Min temperature.....25-30.
   24 hr trend......6 degrees cooler.
Max humidity........89-95 percent.
   24 hr trend......10 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......North around 5 mph.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....Northeast around 20 mph decreasing to around 10
                    mph after midnight.
Mixing height.......1400-2600 ft AGL.
Smoke dispersal.....Poor (16600-39400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of snow and slight chance of rain.
Max temperature.....42-50.
   24 hr trend......9 degrees warmer.
Min humidity........49-55 percent.
   24 hr trend......15 percent drier.
20-foot winds.......Northwest around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....North around 10 mph increasing to northwest
                    around 20 mph in the afternoon.
Mixing height.......2400-3300 ft AGL increasing to 4800-6100 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (23300 knot-ft) increasing to good (82500
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows in the upper 20s. Highs in the lower
50s. Southwest winds around 5 mph.
.MONDAY...Partly cloudy with chance of rain and slight chance of
snow. Lows in the mid 30s. Highs in the mid 50s. Southwest winds
around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain and snow. Lows in
the upper 20s. Highs around 50. Winds generally less than 10 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 20s. Highs in the
lower 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
mid 50s.

$$

WYZ306-202215-
Upper North Platte River Basin-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 0700. rain likely
                    until 1500, then rain. No snow accumulation.
Max temperature.....44-49.
   24 hr trend......15 degrees cooler.
Min humidity........52-58 percent.
   24 hr trend......49 percent wetter.
20-foot winds.......Northeast 5 to 10 mph and gusty.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Southeast around 5 mph increasing to northeast
                    around 20 mph in the afternoon.
Mixing height.......2900-3600 ft AGL increasing to 4700-6300 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (12700 knot-ft) increasing to good (99000
                    knot-ft) in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2400. snow after 2000 until
                    2400, then snow likely. Snow accumulation up to
                    1 inch.
Min temperature.....27-32.
   24 hr trend......7 degrees cooler.
Max humidity........91-97 percent.
   24 hr trend......26 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast 5 to 10 mph.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....East around 20 mph becoming northeast around 10
                    mph after midnight.
Mixing height.......1900-3300 ft AGL.
Smoke dispersal.....Poor to fair (14000-46200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of snow until 1200. slight chance of
                    rain. slight chance of snow after 1200.
Max temperature.....48-53.
   24 hr trend......4 degrees warmer.
Min humidity........41-47 percent.
   24 hr trend......14 percent drier.
20-foot winds.......Northwest 5 to 10 mph and gusty.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing height.......3200-3700 ft AGL increasing to 5900-6600 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (23200 knot-ft) increasing to good (84100
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows in the lower 30s. Highs in the upper
50s. Southwest winds around 5 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
mid 30s. Highs in the upper 50s. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain. Lows around 30.
Highs in the mid 50s. Winds generally less than 10 mph.
.WEDNESDAY...Mostly clear. Lows around 30. Highs in the upper
50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s.

$$

WYZ307-202215-
Snowy Range/Medicine Bow NF-
620 AM MDT Fri Apr 20 2018

...WINTER STORM WARNING IN EFFECT UNTIL 9 AM MDT SATURDAY...

.TODAY...
Sky/weather.........Cloudy. Snow and rain likely until 1200, then
                    snow and rain. Snow accumulation up to 3
                    inches.
Max temperature.....34-42.
   24 hr trend......17 degrees cooler.
Min humidity........57-63 percent.
   24 hr trend......49 percent wetter.
20-foot winds.......East 5 to 10 mph and gusty.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....South around 10 mph increasing to east around
                    20 mph in the afternoon.
Mixing height.......2400-4400 ft AGL.
Smoke dispersal.....Poor to good (20900-68700 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2000. snow until 2400, then
                    snow likely. Snow accumulation of 1 to 3
                    inches.
Min temperature.....23-28.
   24 hr trend......4 degrees cooler.
Max humidity........90-96 percent.
   24 hr trend......23 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Northeast 5 to 10 mph.
LAL.................1.
Chc of wetting rain.70 percent.
Transport winds.....East around 20 mph becoming northeast around 10
                    mph after midnight.
Mixing height.......1200-2900 ft AGL.
Smoke dispersal.....Poor (10700-38100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of snow. chance of rain
                    after 1000.
Max temperature.....39-45.
   24 hr trend......4 degrees warmer.
Min humidity........52-58 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Northwest around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....Northwest 10 to 15 mph.
Mixing height.......2400-3400 ft AGL increasing to 4400-5600 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to good (19000-65900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Slight chance of snow. Lows in the upper
20s. Highs around 50. West winds around 5 mph.
.MONDAY...Partly cloudy with chance of rain and snow. Lows in the
lower 30s. Highs in the lower 50s. Southwest winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain and snow. Lows in
the mid 20s. Highs in the upper 40s. Winds generally less than
10 mph.
.WEDNESDAY...Mostly clear with slight chance of showers,
thunderstorms and snow showers. Lows in the mid 20s. Highs around
50.
.THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the
lower 50s.

$$

WYZ308-202215-
Laramie Valley/Shirley Basin-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Rain and snow likely. Little or no snow
                    accumulation.
Max temperature.....41-46.
   24 hr trend......12 degrees cooler.
Min humidity........53-59 percent.
   24 hr trend......38 percent wetter.
20-foot winds.......East 10 to 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.50 percent.
Transport winds.....Southeast around 10 mph increasing to east
                    around 20 mph in the afternoon.
Mixing height.......1600-2100 ft AGL increasing to 3500-4400 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (17200 knot-ft) increasing to good (71600
                    knot-ft) in the afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2200. snow after 1900 until
                    2400, then snow likely. Snow accumulation up to
                    1 inch.
Min temperature.....26-31.
   24 hr trend......5 degrees cooler.
Max humidity........90-96 percent.
   24 hr trend......32 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East 5 to 10 mph. Gusts up to 25 mph decreasing
                    to 15 mph after midnight.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....East around 20 mph decreasing to around 10 mph
                    after midnight.
Mixing height.......2100-3100 ft AGL.
Smoke dispersal.....Poor to fair (16400-49900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy until 1500, then partly cloudy.
                    Chance of rain and snow until 1200, then slight
                    chance of rain and snow.
Max temperature.....46-51.
   24 hr trend......7 degrees warmer.
Min humidity........45-51 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Northwest around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....Northwest 5 to 10 mph.
Mixing height.......2900-3400 ft AGL increasing to 5500-6000 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to fair (13200-55300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Mostly clear. Lows around 30. Highs in the mid 50s.
West winds around 5 mph.
.MONDAY...Partly cloudy with slight chance of rain. Lows in the
lower 30s. Highs in the upper 50s. South winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of snow and slight chance of
rain. Lows in the upper 20s. Highs in the lower 50s. North winds
around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
mid 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s.

$$

WYZ309-202215-
South Laramie Range/Medicine Bow NF-
620 AM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO NOON MDT
SATURDAY...

.TODAY...
Sky/weather.........Cloudy. Snow and rain likely until 1500, then
                    rain and snow. Snow accumulation up to 1 inch.
Max temperature.....38-44.
   24 hr trend......16 degrees cooler.
Min humidity........59-65 percent.
   24 hr trend......43 percent wetter.
20-foot winds.......Southeast around 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Southeast around 20 mph.
Mixing height.......1500-3500 ft AGL.
Smoke dispersal.....Poor to fair (25100-59300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2300. snow. Snow
                    accumulation up to 2 inches.
Min temperature.....27-32.
   24 hr trend......5 degrees cooler.
Max humidity........93-99 percent.
   24 hr trend......31 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East 5 to 10 mph. Gusts up to 25 mph decreasing
                    to 15 mph after midnight.
LAL.................1.
Chc of wetting rain.75 percent.
Transport winds.....Southeast around 25 mph becoming east around 10
                    mph after midnight.
Mixing height.......1800-2900 ft AGL.
Smoke dispersal.....Poor to fair (20900-49900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain and snow.
Max temperature.....43-51.
   24 hr trend......6 degrees warmer.
Min humidity........48-54 percent.
   24 hr trend......9 percent drier.
20-foot winds.......Northeast around 5 mph.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....North around 5 mph shifting to the west in the
                    afternoon.
Mixing height.......2600-3100 ft AGL increasing to 5400-6100 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor to fair (11500-41300 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Warmer. Mostly clear. Lows in the lower 30s. Highs in
the mid 50s. West winds around 10 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the mid 30s.
Highs around 60. South winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain and snow. Lows in
the upper 20s. Highs in the lower 50s. North winds around 10 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
mid 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s.

$$

WYZ310-202215-
Platte/Goshen/Central and Eastern Laramie-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1200. rain likely.
                    Little or no snow accumulation.
Max temperature.....42-47.
   24 hr trend......19 degrees cooler.
Min humidity........55-61 percent.
   24 hr trend......39 percent wetter.
20-foot winds.......Southeast 15 to 20 mph with higher gusts.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....Southeast around 25 mph.
Mixing height.......2100-3600 ft AGL.
Smoke dispersal.....Fair to good (49700-76100 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain and snow until 2400, then snow and
                    rain likely. Snow accumulation up to 1 inch.
Min temperature.....29-34.
   24 hr trend......4 degrees cooler.
Max humidity........92-98 percent.
   24 hr trend......32 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast around 15 mph and gusty becoming east
                    around 5 mph after midnight.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Southeast 20 to 25 mph.
Mixing height.......1700-2800 ft AGL.
Smoke dispersal.....Poor to fair (30800-58900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of snow until 1000.
                    chance of rain after 0800 until 1200, then
                    slight chance of rain.
Max temperature.....48-54.
   24 hr trend......12 degrees warmer.
Min humidity........46-52 percent.
   24 hr trend......5 percent drier.
20-foot winds.......East around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.10 percent.
Transport winds.....Southeast around 10 mph.
Mixing height.......2400-3000 ft AGL increasing to 5000-6200 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (17600-28200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Warmer. Partly cloudy. Lows in the lower 30s. Highs in
the upper 50s. East winds around 10 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the upper
30s. Highs in the mid 60s. Southeast winds around 10 mph.
.TUESDAY...Partly cloudy. Slight chance of rain. Lows in the
lower 30s. Highs in the mid 50s. North winds around 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs around
60.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
lower 60s.

$$

NEZ311-202215-
Pine Ridge/Nebraska National Forest/Oglala National Grasslands-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1100. rain likely.
                    Little or no snow accumulation.
Max temperature.....40-46.
   24 hr trend......20 degrees cooler.
Min humidity........57-63 percent.
   24 hr trend......31 percent wetter.
20-foot winds.......Southeast around 15 mph with higher gusts.
LAL.................1.
Chc of wetting rain.40 percent.
Transport winds.....Southeast 30 to 35 mph.
Mixing height.......1500-3100 ft AGL.
Smoke dispersal.....Fair to good (51400-83100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain likely. snow after 1900 until
                    2400, then snow likely. Snow accumulation up to
                    1 inch.
Min temperature.....31-36.
   24 hr trend......4 degrees cooler.
Max humidity........92-98 percent.
   24 hr trend......29 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast 5 to 10 mph. Gusts up to 25 mph
                    decreasing to 15 mph after midnight.
LAL.................1.
Chc of wetting rain.55 percent.
Transport winds.....Southeast around 30 mph decreasing to around 20
                    mph after midnight.
Mixing height.......1700-2600 ft AGL.
Smoke dispersal.....Poor to fair (35400-57500 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Cloudy. Chance of snow until 1000. chance of
                    rain until 1200, then slight chance of rain.
Max temperature.....48-53.
   24 hr trend......12 degrees warmer.
Min humidity........49-55 percent.
   24 hr trend......10 percent drier.
20-foot winds.......Southeast around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.10 percent.
Transport winds.....South 10 to 15 mph.
Mixing height.......2300-2800 ft AGL increasing to 4700-5400 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (29700-36400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Warmer. Partly cloudy. Lows in the lower 30s. Highs in
the upper 50s. South winds around 10 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the mid 30s.
Highs in the lower 60s. South winds around 10 mph.
.TUESDAY...Mostly cloudy. Chance of rain. Lows in the lower 30s.
Highs in the mid 50s. Northwest winds around 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
upper 50s.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
lower 60s.

$$

NEZ312-202215-
Box Butte/South Sioux-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1200. rain likely.
                    Little or no snow accumulation.
Max temperature.....39-44.
   24 hr trend......17 degrees cooler.
Min humidity........58-64 percent.
   24 hr trend......32 percent wetter.
20-foot winds.......Southeast around 20 mph with higher gusts.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....Southeast 35 to 40 mph.
Mixing height.......1300-2700 ft AGL.
Smoke dispersal.....Fair to good (49600-81400 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 2300. snow after 1900 until
                    2400, then snow likely. Snow accumulation
                    around 1 inch.
Min temperature.....30-35.
   24 hr trend......4 degrees cooler.
Max humidity........92-98 percent.
   24 hr trend......29 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southeast 10 to 15 mph. Gusts up to 30 mph
                    decreasing to 15 mph after midnight.
LAL.................1.
Chc of wetting rain.60 percent.
Transport winds.....Southeast 25 to 30 mph.
Mixing height.......1700-2300 ft AGL.
Smoke dispersal.....Poor to fair (33700-52700 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Cloudy. Chance of snow until 1000. chance of
                    rain after 0800 until 1200, then slight chance
                    of rain.
Max temperature.....47-52.
   24 hr trend......7 degrees warmer.
Min humidity........51-57 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Southeast around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.10 percent.
Transport winds.....Southeast around 15 mph becoming south around 5
                    mph in the afternoon.
Mixing height.......2300-2800 ft AGL increasing to 4300-4800 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (27500-31200 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Warmer. Partly cloudy. Lows in the lower 30s. Highs in
the upper 50s. Southeast winds around 5 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the mid 30s.
Highs in the lower 60s. Southeast winds around 10 mph.
.TUESDAY...Partly cloudy. Chance of rain. Lows in the lower 30s.
Highs in the mid 50s. Northwest winds around 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
upper 50s.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
lower 60s.

$$

NEZ313-202215-
Scotts Bluff National Monument/Wildcat Hills-
620 AM MDT Fri Apr 20 2018

.TODAY...
Sky/weather.........Cloudy. Snow likely until 1200. rain likely.
                    Little or no snow accumulation.
Max temperature.....40-45.
   24 hr trend......20 degrees cooler.
Min humidity........59-65 percent.
   24 hr trend......35 percent wetter.
20-foot winds.......Southeast around 20 mph with gusts to around 35
                    mph.
LAL.................1.
Chc of wetting rain.45 percent.
Transport winds.....Southeast 35 to 40 mph.
Mixing height.......1500-3000 ft AGL.
Smoke dispersal.....Fair to good (57500-89100 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.TONIGHT...
Sky/weather.........Cloudy. Rain until 0300. snow after 2000. Snow
                    accumulation up to 1 inch.
Min temperature.....30-35.
   24 hr trend......1 degree cooler.
Max humidity........94-100 percent.
   24 hr trend......30 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......East 10 to 15 mph. Gusts up to 30 mph in the
                    evening.
LAL.................1.
Chc of wetting rain.65 percent.
Transport winds.....Southeast 25 to 30 mph.
Mixing height.......1400-2400 ft AGL.
Smoke dispersal.....Poor to fair (34200-56900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.SATURDAY...
Sky/weather.........Cloudy. Chance of snow until 1000. chance of
                    rain after 0700 until 1200, then slight chance
                    of rain.
Max temperature.....46-51.
   24 hr trend......5 degrees warmer.
Min humidity........58-64 percent.
   24 hr trend......1 percent drier.
20-foot winds.......East around 5 mph and gusty.
LAL.................1.
Chc of wetting rain.15 percent.
Transport winds.....Southeast around 15 mph decreasing to around 5
                    mph in the afternoon.
Mixing height.......1900-2600 ft AGL increasing to 3700-4600 ft AGL
                    in the afternoon.
Smoke dispersal.....Poor (20600-28900 knot-ft).
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...Partly cloudy. Lows in the lower 30s. Highs in the mid
50s. Southeast winds around 5 mph.
.MONDAY...Partly cloudy with chance of rain. Lows in the mid 30s.
Highs in the lower 60s. Southeast winds around 10 mph.
.TUESDAY...Mostly cloudy. Chance of rain and slight chance of
snow. Lows in the lower 30s. Highs in the mid 50s. North winds
around 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 20s. Highs in the
upper 50s.
.THURSDAY...Partly cloudy. Lows in the mid 30s. Highs in the
lower 60s.

$$



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