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Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
000
FNUS55 KRIW 181042
FWFRIW
Fire Weather Planning Forecast for Western and Central Wyoming
National Weather Service Riverton WY
441 AM MDT Thu Apr 18 2024
.DISCUSSION...
***This product is currently automated with no discussion,
and will not be refreshed with all forecast updates. It should
be used for planning purposes only. If you need additional fire
weather information, please contact the NWS office in Riverton,
Wyoming. The normal fire weather forecast will resume in its
entirety sometime in Spring 2024.***
---Thunderstorms imply strong gusty and erratic winds---
---Haines Index is high level Haines both day and night---
WYZ280-182200-
Natrona County/Casper BLM-
Including the cities of Casper and Midwest
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy then
becoming mostly sunny.
Max temperature.....36-41.
24 hr trend......7 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......37 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph.
Ridge top winds.....Northwest around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......1000-2600 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Min temperature.....19-24.
24 hr trend......1 degree warmer.
Max humidity........74-80 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Northeast around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2100, then
northeast.
Mixing Height.......4800-5400 ft agl until 2100, then 800-1200 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....35-40.
24 hr trend......2 degrees cooler.
Min humidity........37-43 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northeast 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1000-2400 ft agl until 1200, then 3800-5000 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Northeast
winds around 15 mph.
.SATURDAY...Mostly clear. Lows in the upper 20s. Highs in the mid
40s. East winds around 10 mph.
.SUNDAY...Warmer. Mostly cloudy. Slight chance of showers. Lows
in the mid 30s. Highs in the upper 60s. West winds around 15 mph.
.MONDAY...Cooler. Partly cloudy with slight chance of showers.
Lows in the lower 30s. Highs in the upper 50s. North winds around
15 mph.
.TUESDAY...Partly cloudy. Lows in the upper 30s. Highs in the
lower 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ283-182200-
Upper Wind River Basin/Wind River Basin-
Including the cities of Crowheart, Lander, Riverton, and Shoshoni
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the morning.
Chance of snow 20 percent.
Max temperature.....36-41.
24 hr trend......5 degrees warmer.
Min humidity........33-39 percent.
24 hr trend......20 percent drier.
20-foot winds.......North winds around 10 mph until 1200, then
east. Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph until 1200, then east.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 10 to 15 mph until 1200, then west.
Mixing Height.......1000-2800 ft agl until 1200, then 4000-5800 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy then
becoming partly cloudy.
Min temperature.....20-25.
24 hr trend......4 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......16 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......4200-4800 ft agl until 2100, then 600-1400 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....35-40.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......Unchanged.
20-foot winds.......Northeast winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northeast 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 15 to 20 mph.
Mixing Height.......800-2600 ft agl until 1200, then 4200-5400 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Lows in the mid 20s. East winds
around 10 mph.
.SATURDAY...Warmer. Mostly clear. Lows in the lower 30s. Highs
around 50. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy with slight chance of showers.
Lows in the mid 30s. Highs in the upper 60s. West winds around
15 mph.
.MONDAY...Partly cloudy. Lows in the lower 30s. Highs around 60.
North winds around 10 mph.
.TUESDAY...Partly cloudy. Lows around 40. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ285-182200-
South Bighorn Mountains-
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers early in
the morning. Patchy blowing snow early in the
morning. Chance of snow 20 percent.
Max temperature.....29-34.
24 hr trend......4 degrees warmer.
Min humidity........41-47 percent.
24 hr trend......45 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northwest 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......600-2400 ft agl until 1200, then 3800-5000 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Min temperature.....13-18.
24 hr trend......1 degree warmer.
Max humidity........77-83 percent.
24 hr trend......14 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph with gusts to
around 15 mph.
Ridge top winds.....Northeast around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2100, then
northeast.
Mixing Height.......3400-4000 ft agl until 2100, then 600-800 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy. Isolated snow showers in the
afternoon. Chance of snow 20 percent.
Max temperature.....30-35.
24 hr trend......2 degrees cooler.
Min humidity........44-50 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Northeast winds around 10 mph until 0900, then
north. Gusts up to 15 mph.
Ridge top winds.....East around 15 mph until 0900, then north.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 1200, then northwest.
Mixing Height.......600-2000 ft agl until 1200, then 3400-4400 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy with isolated snow showers. Lows
around 18. Northeast winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the upper 20s. Highs in the
upper 30s. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy. Chance of showers and snow
showers. Lows in the lower 30s. Highs in the upper 50s. West
winds around 15 mph.
.MONDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows around 30. Highs in the upper 40s. North
winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the upper 30s. Highs in the mid 50s.
.WEDNESDAY...Partly cloudy. Chance of showers in the afternoon.
Highs in the mid 60s.
$$
WYZ281-182200-
Johnson County/Casper BLM-
Including the cities of Buffalo and Kaycee
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy.
Max temperature.....32-37.
24 hr trend......6 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......38 percent drier.
20-foot winds.......Northwest winds around 15 mph with higher
gusts.
Ridge top winds.....Northwest 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph.
Mixing Height.......800-1000 ft agl until 0900. 4800-6800 ft agl
after 1200.
Smoke dispersal.....Good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....14-19.
24 hr trend......1 degree cooler.
Max humidity........69-75 percent.
24 hr trend......18 percent drier.
Humidity recovery...Good.
20-foot winds.......North winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph until 0300, 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 10 to 15 mph.
Mixing Height.......4400-5200 ft agl until 2100, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....29-34.
24 hr trend......3 degrees cooler.
Min humidity........39-45 percent.
24 hr trend......1 percent drier.
20-foot winds.......North winds 10 to 15 mph. Gusts up to 20 mph
until 1500, then 25 mph.
Ridge top winds.....North 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......800-2800 ft agl until 1200, then 3800-5200 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. North winds
around 10 mph.
.SATURDAY...Not as cool. Mostly clear. Lows in the upper 20s.
Highs in the mid 40s. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy. Chance of showers. Lows in the
mid 30s. Highs in the mid 60s. West winds around 15 mph.
.MONDAY...Cooler. Partly cloudy with slight chance of showers.
Lows in the lower 30s. Highs in the mid 50s. Northwest winds
around 15 mph.
.TUESDAY...Partly cloudy. Lows in the upper 30s. Highs in the
lower 60s.
.WEDNESDAY...Warmer. Partly cloudy. Slight chance of showers in
the afternoon. Highs in the lower 70s.
$$
WYZ282-182200-
South Bighorn Basin/Worland BLM-
Including the cities of Ten Sleep, Thermopolis, and Worland
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Max temperature.....32-37.
24 hr trend......6 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......34 percent drier.
20-foot winds.......Northwest winds around 10 mph until 1500, then
northeast. Gusts up to 15 mph.
Ridge top winds.....Northwest around 15 mph until 1500, then
northeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......800-1000 ft agl until 0900. 4800-6800 ft agl
after 1200.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy then
becoming partly cloudy.
Min temperature.....15-20.
24 hr trend......2 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......15 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2400, then
northwest. Gusts up to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph until 2400, then
northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph.
Mixing Height.......5000-5800 ft agl until 2100, then 600-1000 ft
agl.
Smoke dispersal.....Fair to good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy then
becoming partly cloudy.
Max temperature.....32-37.
24 hr trend......1 degree warmer.
Min humidity........35-41 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northwest around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......800-2400 ft agl until 1200, then 4400-5600 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s. North winds
around 10 mph.
.SATURDAY...Warmer. Mostly clear. Lows in the lower 30s. Highs
around 50. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy. Chance of showers. Lows in the
upper 30s. Highs in the upper 60s. West winds around 10 mph.
.MONDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the upper 50s. North winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid
60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ275-182200-
North Bighorn Basin/Worland BLM-
Including the cities of Greybull, Lovell, and Powell
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....30-35.
24 hr trend......3 degrees warmer.
Min humidity........30-36 percent.
24 hr trend......25 percent drier.
20-foot winds.......Northwest winds around 10 mph and gusty.
Ridge top winds.....Northwest around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph.
Mixing Height.......600-800 ft agl until 0900. 5200-7200 ft agl
after 1200.
Smoke dispersal.....Poor to fair until 1500, then good.
Haines Index........3.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....13-18.
24 hr trend......1 degree warmer.
Max humidity........71-77 percent.
24 hr trend......14 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph and gusty.
Ridge top winds.....North 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......5600-6400 ft agl until 2100, then 600-1000 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Max temperature.....29-34.
24 hr trend......2 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Northwest winds 15 to 20 mph with gusts to
around 25 mph.
Ridge top winds.....Northwest 20 to 25 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 20 to 25 mph.
Mixing Height.......600-2200 ft agl until 1200, then 4200-5600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. North winds
around 10 mph.
.SATURDAY...Not as cool. Mostly clear. Lows in the lower 30s.
Highs in the upper 40s. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy. Chance of showers. Lows in the
mid 30s. Highs in the mid 60s. West winds around 10 mph.
.MONDAY...Partly cloudy. Chance of snow showers and slight chance
of showers. Lows in the lower 30s. Highs in the upper 50s. North
winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid
60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the lower 70s.
$$
WYZ276-182200-
Cody Foothills-
Including the cities of Clark, Cody, and Meeteetse
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers late in
the afternoon. Chance of snow 20 percent.
Max temperature.....32-37.
24 hr trend......6 degrees warmer.
Min humidity........35-41 percent.
24 hr trend......38 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then east
around 10 mph.
Ridge top winds.....Southwest around 10 mph until 0900, then east.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 10 mph until 1200, then northeast.
Mixing Height.......600-2000 ft agl until 1200, then 4000-5600 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........3.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Min temperature.....12-17.
24 hr trend......Unchanged.
Max humidity........78-84 percent.
24 hr trend......7 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 2400, then
north 10 to 15 mph. Gusts up to 15 mph until
0300, then 20 mph.
Ridge top winds.....Northeast around 15 mph until 2100, then north.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast 10 to 15 mph until 2400, then north.
Mixing Height.......3800-4600 ft agl until 2100, then 600-1000 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....28-33.
24 hr trend......3 degrees cooler.
Min humidity........44-50 percent.
24 hr trend......6 percent wetter.
20-foot winds.......North winds around 15 mph with higher gusts.
Ridge top winds.....North around 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North around 20 mph.
Mixing Height.......800-2200 ft agl until 1200, then 3200-4400 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows around 20. Winds generally
less than 10 mph.
.SATURDAY...Not as cool. Mostly clear. Lows in the lower 30s.
Highs in the lower 40s. Winds generally less than 10 mph.
.SUNDAY...Warmer. Partly cloudy with chance of showers and slight
chance of snow showers. Lows in the lower 30s. Highs around 60.
West winds around 15 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the lower 50s. Northwest
winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the upper 30s. Highs in the
upper 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the mid 60s.
$$
WYZ287-182200-
Owl Creek Mountains-
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the afternoon.
Chance of snow 20 percent.
Max temperature.....29-34.
24 hr trend......4 degrees warmer.
Min humidity........40-46 percent.
24 hr trend......35 percent drier.
20-foot winds.......West winds around 10 mph until 0900, then
upslope/upvalley 5-9 mph until 1200, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest around 15 mph until 0900, then east.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 10 to 15 mph until 1200, then
southwest until 1500, then south.
Mixing Height.......800-2600 ft agl until 1200, then 4000-5600 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Isolated snow showers early in the evening.
Chance of snow 20 percent.
Min temperature.....17-22.
24 hr trend......5 degrees warmer.
Max humidity........77-83 percent.
24 hr trend......10 percent drier.
Humidity recovery...Excellent.
20-foot winds.......East winds around 10 mph until 2400, then
north. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph until 2400, then north.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....East 10 to 15 mph until 2400, then north.
Mixing Height.......4200-4600 ft agl until 2100, then 600-800 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy. Isolated snow showers in the
afternoon. Chance of snow 20 percent.
Max temperature.....30-35.
24 hr trend......Unchanged.
Min humidity........43-49 percent.
24 hr trend......1 percent drier.
20-foot winds.......North winds 10 to 15 mph with higher gusts.
Ridge top winds.....North 15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North 15 to 20 mph.
Mixing Height.......1000-2000 ft agl until 1200, then 3800-4800 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Isolated snow showers in the
evening. Lows in the lower 20s. North winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the lower 30s. Highs in the
lower 40s. South winds around 10 mph.
.SUNDAY...Warmer. Partly cloudy with slight chance of showers and
snow showers. Lows in the mid 30s. Highs in the lower 60s. West
winds around 15 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the lower 50s. North
winds around 10 mph.
.TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 50s.
.WEDNESDAY...Partly cloudy. Chance of showers in the afternoon.
Highs in the mid 60s.
$$
WYZ286-182200-
Absaroka Mountains/North Shoshone NF-
Including the city of Pahaska
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers early in
the afternoon. Scattered snow showers late in
the afternoon, then isolated snow showers late
in the afternoon. Chance of snow 50 percent.
Max temperature.....25-30.
24 hr trend......2 degrees warmer.
Min humidity........39-45 percent.
24 hr trend......27 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph until 1500, then south.
Gusts up to 15 mph.
Ridge top winds.....West 10 to 15 mph until 1500, then south.
LAL.................1.
Chc of wetting rain.Less than 5 percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......600-1200 ft agl until 1200, then 4200-5800 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........3.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the evening.
Chance of snow 20 percent.
Min temperature.....9-14.
24 hr trend......1 degree warmer.
Max humidity........78-84 percent.
24 hr trend......3 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Southwest around 15 mph until 2100, then east.
LAL.................1.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southwest around 15 mph until 2100, then
southeast.
Mixing Height.......3600-4200 ft agl until 2100, then 600 ft agl.
Smoke dispersal.....Poor.
Haines Index........3.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Isolated snow showers in the late morning and
afternoon. Chance of snow 20 percent.
Max temperature.....23-28.
24 hr trend......2 degrees cooler.
Min humidity........50-56 percent.
24 hr trend......11 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East 10 to 15 mph.
LAL.................1.
Chc of wetting rain.Less than 5 percent.
Transport winds.....Southeast 10 to 15 mph until 1200, then
southwest until 1500, then east.
Mixing Height.......600-1600 ft agl until 1200, then 3000-3600 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy with isolated snow showers. Lows
around 13. Winds generally less than 10 mph.
.SATURDAY...Not as cool. Mostly clear. Lows in the mid 20s. Highs
in the upper 30s. Southwest winds around 10 mph.
.SUNDAY...Partly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the mid 20s. Highs in the
upper 40s. West winds around 20 mph.
.MONDAY...Partly cloudy. Slight chance of snow showers. Lows in
the mid 20s. Highs in the lower 40s. West winds around 15 mph.
.TUESDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the lower 30s. Highs in the upper 40s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers and snow showers
in the afternoon. Highs in the mid 50s.
$$
WYZ140-182200-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....30-35.
24 hr trend......4 degrees warmer.
Min humidity........28-34 percent.
24 hr trend......23 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
southwest around 10 mph and gusty.
Ridge top winds.....North around 10 mph until 1200, then southwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1200, then west.
Mixing Height.......400-1200 ft agl until 1200. 6600-7200 ft agl
after 1500.
Smoke dispersal.....Poor until 1500, then good.
Haines Index........3.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....11-16.
24 hr trend......4 degrees warmer.
Max humidity........80-86 percent.
24 hr trend......1 percent wetter.
Humidity recovery...Excellent.
20-foot winds.......Southwest winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph until 0300, then
northeast around 10 mph. Gusts up to 15 mph.
Ridge top winds.....Southwest 10 to 15 mph until 2400, then
northeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2100, then north until
2400, then east.
Mixing Height.......5200-5600 ft agl until 2100, then 400-600 ft
agl.
Smoke dispersal.....Fair to good until 2100, then poor.
Haines Index........3.
.FRIDAY...
Sky/weather.........Partly cloudy. Isolated snow showers in the
afternoon. Chance of snow 20 percent.
Max temperature.....31-36.
24 hr trend......1 degree warmer.
Min humidity........40-46 percent.
24 hr trend......11 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.....Northeast 10 to 15 mph until 1200, then
northwest.
Mixing Height.......400-1600 ft agl until 1200, then 4400-5800 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly clear. Lows around 12. Winds generally
less than 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 20s. Highs in the lower
40s. Winds generally less than 10 mph.
.SUNDAY...Mostly cloudy. Chance of showers, snow showers and
slight chance of thunderstorms. Lows in the lower 20s. Highs in
the upper 40s. Southwest winds around 15 mph.
.MONDAY...Partly cloudy. Slight chance of snow showers. Lows in
the lower 20s. Highs in the mid 40s. West winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the upper 20s. Highs in the lower 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers in the afternoon.
Highs in the mid 50s.
$$
WYZ415-182200-
North Zone Bridger Teton NF and Grand Teton NP-
Including the cities of Jackson and Moran
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Max temperature.....30-35.
24 hr trend......Unchanged.
Min humidity........36-42 percent.
24 hr trend......20 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
around 10 mph.
Ridge top winds.....Northeast around 10 mph until 0900, then
northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 1200, then west.
Mixing Height.......600-800 ft agl until 1200, then 4400-5800 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........3.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....11-16.
24 hr trend......3 degrees warmer.
Max humidity........74-80 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.
Ridge top winds.....Northwest around 15 mph until 2100, then
southeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2100, then north until
2400, then southeast.
Mixing Height.......4400-4600 ft agl until 2100, then 400-600 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Isolated snow showers in the afternoon. Chance
of snow 20 percent.
Max temperature.....33-38.
24 hr trend......4 degrees warmer.
Min humidity........37-43 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph.
Ridge top winds.....Southeast around 10 mph until 0900, then west
until 1500, then northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast around 10 mph until 0900. West after
1200.
Mixing Height.......600-1600 ft agl until 1200, then 4400-5400 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Isolated snow showers in the
evening. Lows around 17. East winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 20s. Highs in the mid
40s. Southwest winds around 10 mph.
.SUNDAY...Partly cloudy with chance of showers, snow showers and
slight chance of thunderstorms. Lows in the mid 20s. Highs in the
upper 40s. Southwest winds around 15 mph.
.MONDAY...Mostly clear. Slight chance of snow showers. Lows in
the lower 20s. Highs in the mid 40s. West winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers and snow
showers. Lows around 30. Highs in the lower 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers in the afternoon.
Highs in the lower 50s.
$$
WYZ416-182200-
West Wind River Mountains/East Zone Bridger Teton NF-
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy. Scattered snow showers early in
the morning. Isolated snow showers late in the
morning. Chance of snow 50 percent.
Max temperature.....29-34.
24 hr trend......3 degrees cooler.
Min humidity........36-42 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
10 to 15 mph.
Ridge top winds.....North around 10 mph until 0900, then west.
LAL.................1.
Chc of wetting rain.10 percent until 1200, then zero percent.
Transport winds.....North around 10 mph until 0900, then west 15 to
20 mph.
Mixing Height.......600-2000 ft agl until 1200, then 4600-5600 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Min temperature.....14-19.
24 hr trend......4 degrees warmer.
Max humidity........71-77 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......West winds around 10 mph until 2100, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest 10 to 15 mph until 2400, then
northeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph until 2400, then north.
Mixing Height.......3800-4200 ft agl until 2100, then 600 ft agl.
Smoke dispersal.....Fair until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Max temperature.....34-39.
24 hr trend......5 degrees warmer.
Min humidity........33-39 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then west
around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 0900, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 0900, then west.
Mixing Height.......600-2000 ft agl until 1200, then 4200-5200 ft
agl.
Smoke dispersal.....Poor until 1200, then fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Isolated snow showers in the
evening. Lows around 18. East winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 20s. Highs in the lower
40s. West winds around 10 mph.
.SUNDAY...Partly cloudy. Chance of showers and snow showers. Lows
in the mid 20s. Highs in the upper 40s. West winds around 15 mph.
.MONDAY...Partly cloudy with slight chance of snow showers. Lows
in the lower 20s. Highs in the mid 40s. Northwest winds around
15 mph.
.TUESDAY...Partly cloudy with slight chance of showers and snow
showers. Lows around 30. Highs in the lower 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers and snow showers
in the afternoon. Highs in the mid 50s.
$$
WYZ288-182200-
East Wind River Mountains/South Shoshone NF-
Including the cities of Dubois and South Pass
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Scattered snow showers early in the morning.
Isolated snow showers early in the morning.
Chance of snow 50 percent.
Max temperature.....31-36.
24 hr trend......4 degrees cooler.
Min humidity........39-45 percent.
24 hr trend......5 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
around 10 mph until 1500, then south. Gusts up
to 15 mph.
Ridge top winds.....Northeast around 15 mph until 1200. South after
1500.
LAL.................1.
Chc of wetting rain.5 percent.
Transport winds.....East around 15 mph until 1200, then southwest.
Mixing Height.......800-2000 ft agl until 1200, then 3800-5200 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the evening.
Chance of snow 20 percent.
Min temperature.....14-19.
24 hr trend......4 degrees warmer.
Max humidity........77-83 percent.
24 hr trend......13 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds around 10 mph until 2400, then east
until 0300, then downslope/downvalley 4-7 mph.
Gusts up to 15 mph.
Ridge top winds.....North 10 to 15 mph until 2400, then northeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 15 mph until 2100, then
northeast.
Mixing Height.......3600-4200 ft agl until 2100, then 600-800 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy. Isolated snow showers in the
afternoon. Chance of snow 20 percent.
Max temperature.....30-35.
24 hr trend......Unchanged.
Min humidity........43-49 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then east
10 to 15 mph.
Ridge top winds.....Northeast 10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North around 10 mph until 0900, then southeast
until 1200, then southwest until 1500, then
southeast.
Mixing Height.......600-2000 ft agl until 1200, then 3600-4400 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy with isolated snow showers. Lows
around 17. Northeast winds around 10 mph.
.SATURDAY...Mostly clear. Slight chance of snow showers. Lows in
the upper 20s. Highs in the lower 40s. West winds around 10 mph.
.SUNDAY...Warmer. Partly cloudy with chance of snow showers and
slight chance of showers. Lows in the upper 20s. Highs in the
lower 50s. West winds around 20 mph.
.MONDAY...Partly cloudy with slight chance of snow showers. Lows
in the mid 20s. Highs in the upper 40s. West winds around 15 mph.
.TUESDAY...Partly cloudy with chance of snow showers and slight
chance of showers. Lows in the mid 30s. Highs in the lower 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers in the afternoon.
Highs in the upper 50s.
$$
WYZ414-182200-
Salt and Wyoming Ranges/West Zone Bridger Teton NF-
Including the city of Afton
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Max temperature.....29-34.
24 hr trend......Unchanged.
Min humidity........37-43 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....East around 10 mph until 0900, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 0900, then
southeast until 1200, then west.
Mixing Height.......600-1400 ft agl until 1200, then 4200-4800 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....16-21.
24 hr trend......4 degrees warmer.
Max humidity........72-78 percent.
24 hr trend......9 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northwest winds around 10 mph until 2400, then
downslope/downvalley 4-7 mph. Gusts up to 15
mph.
Ridge top winds.....Northwest 10 to 15 mph until 2400, then
southwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West 10 to 15 mph.
Mixing Height.......3800 ft agl until 2100, then 400-600 ft agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....35-40.
24 hr trend......5 degrees warmer.
Min humidity........31-37 percent.
24 hr trend......3 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then
northwest around 10 mph. Gusts up to 15 mph.
Ridge top winds.....South around 10 mph until 0900, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southwest around 10 mph until 1200, then west.
Mixing Height.......400-2000 ft agl until 1200, then 4200-5400 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Southeast
winds around 10 mph.
.SATURDAY...Mostly clear. Lows around 30. Highs in the upper 40s.
Southwest winds around 10 mph.
.SUNDAY...Partly cloudy with chance of showers and slight chance
of snow showers. Lows in the upper 20s. Highs in the lower 50s.
West winds around 15 mph.
.MONDAY...Partly cloudy. Lows in the upper 20s. Highs in the
upper 40s. West winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the mid 30s. Highs in the mid 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers and snow
showers in the morning, then chance of showers in the afternoon.
Highs in the upper 50s.
$$
WYZ278-182200-
Upper Green River Basin/Rock Springs BLM-
Including the cities of Big Piney, Farson, and Pinedale
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers early in
the morning. Chance of snow 20 percent.
Max temperature.....37-42.
24 hr trend......3 degrees cooler.
Min humidity........26-32 percent.
24 hr trend......2 percent drier.
20-foot winds.......East winds around 10 mph until 0900, then
southwest and gusty until 1500, then west with
higher gusts.
Ridge top winds.....East around 15 mph until 0900. West after 1200.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Southeast 10 to 15 mph until 1200, then
southwest 15 to 20 mph.
Mixing Height.......1200-3000 ft agl until 1200, then 5400-6800 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....18-23.
24 hr trend......3 degrees warmer.
Max humidity........67-73 percent.
24 hr trend......9 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds 10 to 15 mph and gusty until
0300, then north.
Ridge top winds.....Northwest 15 to 20 mph until 2400, then north
10 to 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 20 mph until 2100, then north.
Mixing Height.......5000-5800 ft agl until 2100, then 400-800 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....43-48.
24 hr trend......5 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......1 percent drier.
20-foot winds.......Northeast winds around 10 mph until 0900, then
southeast until 1200, then west with higher
gusts.
Ridge top winds.....Northeast around 15 mph until 0900, then
southeast until 1200, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 0900, then south
until 1200, then west 15 to 20 mph.
Mixing Height.......400-2000 ft agl until 1200, then 4800-6800 ft
agl.
Smoke dispersal.....Poor to fair until 1500, then good to very
good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s. East winds
around 10 mph.
.SATURDAY...Mostly clear. Lows around 30. Highs in the mid 50s.
Northwest winds around 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers. Lows
around 30. Highs in the lower 60s. West winds around 15 mph.
.MONDAY...Partly cloudy. Lows in the upper 20s. Highs in the
upper 50s. Northwest winds around 15 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers. Lows in the mid 30s. Highs 63 to 68.
$$
WYZ277-182200-
Lincoln and Uinta Counties/Lower Elevations-
Including the cities of Evanston, Fort Bridger, and Kemmerer
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny.
Max temperature.....39-44.
24 hr trend......Unchanged.
Min humidity........23-29 percent.
24 hr trend......4 percent drier.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
10 to 15 mph with gusts to around 25 mph.
Ridge top winds.....Southeast around 10 mph until 1200, then west
15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....East around 10 mph until 1200, then west 15 to
20 mph.
Mixing Height.......600-2400 ft agl until 1200, then 4800-6000 ft
agl.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....22-27.
24 hr trend......4 degrees warmer.
Max humidity........66-72 percent.
24 hr trend......13 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds 10 to 15 mph and gusty until
2400, then downslope/downvalley 4-7 mph.
Ridge top winds.....Northwest 15 to 20 mph until 2400, then
northeast around 10 mph until 0300, then
southeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West 15 to 20 mph until 2400, then north around
10 mph.
Mixing Height.......4000-4800 ft agl until 2100, then 400-600 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........3.
.FRIDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy.
Max temperature.....44-49.
24 hr trend......5 degrees warmer.
Min humidity........23-29 percent.
24 hr trend......Unchanged.
20-foot winds.......Upslope/upvalley 5-9 mph until 1200, then west
10 to 15 mph with higher gusts.
Ridge top winds.....Southeast around 10 mph until 1200, then west
15 to 20 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 10 mph until 0900, then
southeast until 1200, then west 15 to 20 mph.
Mixing Height.......400-1600 ft agl until 1200. 6000-6600 ft agl
after 1500.
Smoke dispersal.....Poor to fair until 1500, then good to very
good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s. Northeast
winds around 10 mph.
.SATURDAY...Mostly clear. Lows in the lower 30s. Highs in the mid
50s. West winds around 10 mph.
.SUNDAY...Partly cloudy with slight chance of showers. Lows in
the lower 30s. Highs in the lower 60s. West winds around 15 mph.
.MONDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s. Northwest winds around 10 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the upper 30s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Chance of showers in the afternoon.
Highs in the mid 60s.
$$
WYZ279-182200-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Including the cities of Green River, Rock Springs, and Wamsutter
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Partly cloudy then becoming mostly sunny then
becoming partly cloudy.
Max temperature.....43-48.
24 hr trend......4 degrees cooler.
Min humidity........20-26 percent.
24 hr trend......10 percent drier.
20-foot winds.......Northeast winds around 10 mph until 1200, then
west. Gusts up to 20 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then west.
Mixing Height.......1000-2600 ft agl until 1200, then 5000-6600 ft
agl.
Smoke dispersal.....Poor to fair until 1500, then good to very
good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....25-30.
24 hr trend......4 degrees warmer.
Max humidity........66-72 percent.
24 hr trend......16 percent drier.
Humidity recovery...Good.
20-foot winds.......Northwest winds 10 to 15 mph until 2400, then
north. Gusts up to 20 mph.
Ridge top winds.....Northwest 15 to 20 mph until 2400, then north.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest 15 to 20 mph until 2400, then north.
Mixing Height.......5600-6000 ft agl until 2100, then 400-800 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........3.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....47-52.
24 hr trend......4 degrees warmer.
Min humidity........24-30 percent.
24 hr trend......Unchanged.
20-foot winds.......Northeast winds around 10 mph until 1200, then
northwest. Gusts up to 15 mph until 1500, then
20 mph.
Ridge top winds.....Northeast around 15 mph until 1200, then
northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then
northwest.
Mixing Height.......400-1800 ft agl until 1200. 5800-6200 ft agl
after 1500.
Smoke dispersal.....Poor until 1500, then good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s. Northeast
winds around 15 mph.
.SATURDAY...Mostly clear. Lows in the mid 30s. Highs in the mid
50s. Northwest winds around 10 mph.
.SUNDAY...Warmer. Partly cloudy with slight chance of showers.
Lows in the upper 30s. Highs in the upper 60s. West winds around
15 mph.
.MONDAY...Partly cloudy. Lows in the mid 30s. Highs in the mid
60s. Northwest winds around 15 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Lows in the lower
40s. Highs 67 to 72.
$$
WYZ289-182200-
Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the morning.
Chance of snow 20 percent.
Max temperature.....37-42.
24 hr trend......2 degrees cooler.
Min humidity........27-33 percent.
24 hr trend......21 percent drier.
20-foot winds.......North winds around 10 mph until 1200, then
west. Gusts up to 15 mph.
Ridge top winds.....North around 15 mph until 1200, then west.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 1200, then west.
Mixing Height.......1600-2400 ft agl until 1200, then 4600-6600 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....19-24.
24 hr trend......4 degrees warmer.
Max humidity........73-79 percent.
24 hr trend......21 percent drier.
Humidity recovery...Excellent.
20-foot winds.......North winds 10 to 15 mph until 2400, then
northeast. Gusts up to 20 mph.
Ridge top winds.....North around 15 mph until 2400, then northeast.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....West around 15 mph until 2100, then northeast.
Mixing Height.......5200-5600 ft agl until 2100, then 800-1200 ft
agl.
Smoke dispersal.....Good until 2100, then poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Partly cloudy.
Max temperature.....37-42.
24 hr trend......1 degree cooler.
Min humidity........36-42 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Northeast winds 10 to 15 mph with higher gusts.
Ridge top winds.....Northeast around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph.
Mixing Height.......800-2000 ft agl until 1200, then 3800-5200 ft
agl.
Smoke dispersal.....Fair to good.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 20s. Northeast
winds around 15 mph.
.SATURDAY...Mostly clear. Lows in the lower 30s. Highs in the
upper 40s. Northeast winds around 10 mph.
.SUNDAY THROUGH MONDAY...Partly cloudy with slight chance of
showers. Lows 31 to 36. Highs 60 to 65. Northwest winds 15 to
20 mph.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy with slight chance of
showers. Lows in the upper 30s. Highs 65 to 70.
$$
WYZ300-182200-
Casper Mountain-
442 AM MDT Thu Apr 18 2024
.TODAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Isolated snow showers early in the morning.
Chance of snow 20 percent.
Max temperature.....31-36.
24 hr trend......Unchanged.
Min humidity........36-42 percent.
24 hr trend......30 percent drier.
20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 15
mph until 1200, then 20 mph.
Ridge top winds.....North around 15 mph until 1200, then northwest.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....North around 15 mph until 1200, then west.
Mixing Height.......2000-2600 ft agl until 1200. 6800-7000 ft agl
after 1500.
Smoke dispersal.....Poor until 1200, then good.
Haines Index........2.
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Min temperature.....18-23.
24 hr trend......3 degrees warmer.
Max humidity........79-85 percent.
24 hr trend......14 percent drier.
Humidity recovery...Excellent.
20-foot winds.......Northeast winds around 10 mph until 2400, then
east. Gusts up to 15 mph.
Ridge top winds.....Northeast around 15 mph until 2400, then east.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northwest around 15 mph until 2100, then east.
Mixing Height.......5200-5400 ft agl until 2100, then 800-1200 ft
agl.
Smoke dispersal.....Poor.
Haines Index........2.
.FRIDAY...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
Max temperature.....31-36.
24 hr trend......1 degree warmer.
Min humidity........43-49 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Northeast winds around 10 mph with higher
gusts.
Ridge top winds.....Northeast around 15 mph.
LAL.................1.
Chc of wetting rain.Zero percent.
Transport winds.....Northeast around 15 mph until 1200, then north.
Mixing Height.......800-2400 ft agl until 1200, then 3800-4600 ft
agl.
Smoke dispersal.....Poor to fair.
Haines Index........2.
.Forecast days 3 through 7......
.FRIDAY NIGHT...Mostly cloudy. Isolated snow showers after
midnight. Lows in the lower 20s. East winds around 10 mph.
.SATURDAY...Partly cloudy with slight chance of snow showers.
Lows in the upper 20s. Highs in the lower 40s. East winds around
10 mph.
.SUNDAY...Warmer. Partly cloudy. Slight chance of showers. Lows
in the mid 30s. Highs around 60. West winds around 15 mph.
.MONDAY...Partly cloudy with slight chance of showers and snow
showers. Lows in the upper 20s. Highs in the lower 50s. North
winds around 15 mph.
.TUESDAY...Partly cloudy with slight chance of showers. Lows in
the upper 30s. Highs in the upper 50s.
.WEDNESDAY...Partly cloudy. Slight chance of showers in the
afternoon. Highs in the mid 60s.
$$
- National Weather Service
- Rapid City, SD Weather Forecast Office
- 300 East Signal Drive
- Rapid City, SD 57701-3800
- 605-341-9271
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- Page last modified: Sep 19th, 2023 19:10 UTC