053
FNUS55 KRIW 181202
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
501 AM MST THU DEC 18 2025
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 HUMAN WRITTEN DISCUSSION SECTION ALONG WITH THE FIRE
WEATHER FORECAST WILL RESUME REGULAR OPERATIONS SOMETIME IN
SPRING 2026.***
---THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS---
WYZ280-182300-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....34-39.
24 HR TREND......19 DEGREES COOLER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1600, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1300, THEN SOUTHWEST 25
TO 30 MPH.
MIXING HEIGHT.......600-2200 FT AGL UNTIL 1000, THEN 2800-4200 FT
AGL UNTIL 1600, THEN 800-1400 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1600, THEN POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........58-64 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH WITH GUSTS
TO AROUND 45 MPH UNTIL 2400, THEN 30 TO 35 MPH
WITH GUSTS TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 0100, THEN 35 TO
40 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 0100, THEN 35 TO
40 MPH.
MIXING HEIGHT.......600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON.
CHANCE OF SHOWERS 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......17 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 35 MPH WITH GUSTS
TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 40 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 40 TO 45 MPH UNTIL 1100, THEN 50 TO 55 MPH
UNTIL 1600, THEN AROUND 45 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1100, THEN 1800-3800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1100, THEN VERY GOOD UNTIL 1700,
THEN GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER, BREEZY. CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE EVENING, THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT.
LOWS IN THE LOWER 20S. WEST WINDS AROUND 25 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY
NOT AS COOL. MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. SOUTHWEST WINDS AROUND 20 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE MID 50S.
WYZ283-182300-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20
MPH UNTIL 1500, THEN 25 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH UNTIL 1100, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1600, THEN SOUTHWEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 1200-3200 FT
AGL UNTIL 1700, THEN 600-800 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING. CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS AFTER MIDNIGHT. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......13 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0200, THEN AROUND
30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.
MIXING HEIGHT.......600-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY. SNOW SHOWERS IN THE AFTERNOON. LITTLE OR
NO SNOW ACCUMULATION. CHANCE OF PRECIPITATION
90 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH. GUSTS UP
TO 40 MPH UNTIL 1200, THEN 45 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....WEST 30 TO 35 MPH UNTIL 1100, THEN 40 TO 45 MPH
UNTIL 1600, THEN SOUTHWEST AROUND 35 MPH.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 20S. WEST WINDS AROUND 20 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN
THE LOWER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S.
SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER 50S.
WYZ285-182300-
SOUTH BIGHORN MOUNTAINS-
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....27-32.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 35
MPH UNTIL 1500, THEN SOUTHWEST WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....NORTHWEST 25 TO 30 MPH UNTIL 1000, THEN WEST 20
TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH UNTIL 1000, THEN WEST 20
TO 25 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-31.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......23 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH. GUSTS UP
TO 40 MPH UNTIL 0300, THEN 45 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 0100, THEN 30 TO
35 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 0200, THEN WEST
AROUND 35 MPH.
MIXING HEIGHT.......200-600 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. SNOW SHOWERS AND RAIN SHOWERS
LIKELY LATE IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 30 MPH WITH GUSTS
TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 35 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 35 TO 40 MPH UNTIL 1300. AROUND 35 MPH
AFTER 1700.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
SNOW SHOWERS AND SHOWERS LIKELY IN THE EVENING,
THEN SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 20. WEST WINDS
AROUND 20 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS AROUND 30. WEST WINDS AROUND 10 MPH.
SUNDAY THROUGH MONDAY
PARTLY CLOUDY. LOWS 32 TO 37. HIGHS
41 TO 46. SOUTHWEST WINDS 15 TO 20 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS 45 TO 50.
WYZ281-182300-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......23 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 20 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 0900, THEN AROUND 10 MPH
AND GUSTY UNTIL 1200, THEN SOUTH WITH HIGHER
GUSTS.
RIDGE TOP WINDS.....NORTHWEST 25 TO 30 MPH UNTIL 0800, THEN 15 TO
20 MPH UNTIL 1300, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH UNTIL 0800, THEN 15 TO
20 MPH UNTIL 1200, THEN SOUTHWEST UNTIL 1700,
THEN SOUTH.
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1100, THEN 2200-3800 FT
AGL UNTIL 1600, THEN 600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........52-58 PERCENT.
24 HR TREND......15 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......BREEZY. SOUTH WINDS 15 TO 20 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 0300, THEN SOUTHWEST AROUND
25 MPH WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTH 20 TO 25 MPH UNTIL 0400, THEN SOUTHWEST
AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0300, THEN 30 TO
35 MPH.
MIXING HEIGHT.......600-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. RAIN SHOWERS AND SNOW SHOWERS
LATE IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. CHANCE OF PRECIPITATION 90
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......20 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH WITH GUSTS
TO AROUND 40 MPH UNTIL 1500, THEN WEST AROUND
20 MPH WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1600, THEN WEST
AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 35 TO 40 MPH UNTIL 1100. 30 TO 35 MPH
AFTER 1500.
MIXING HEIGHT.......1400-3400 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS AND SHOWERS IN THE EVENING,
THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 20.
NORTHWEST WINDS AROUND 10 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS AROUND 18. HIGHS IN THE MID 30S. SOUTHWEST WINDS AROUND
10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
40S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
50S. SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
30S. HIGHS 52 TO 57.
WYZ282-182300-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....29-34.
24 HR TREND......20 DEGREES COOLER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH
UNTIL 1500, THEN 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 0800, THEN SOUTH UNTIL
1500, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 0800, THEN SOUTH
UNTIL 1500, THEN SOUTHEAST.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1100, THEN 2000-3200 FT
AGL UNTIL 1600, THEN 600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
EARLY IN THE MORNING. CHANCE OF SHOWERS 20
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH UNTIL 0500, THEN SOUTHWEST
AROUND 25 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS,
THEN RAIN SHOWERS AND SNOW SHOWERS LIKELY LATE
IN THE AFTERNOON. NO SNOW ACCUMULATION. CHANCE
OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......17 DEGREES WARMER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP
TO 30 MPH UNTIL 1200, THEN 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 1100, THEN 35 TO
40 MPH UNTIL 1600, THEN WEST AROUND 30 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
SHOWERS AND SNOW SHOWERS LIKELY IN THE EVENING,
THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER 20S.
WEST WINDS AROUND 15 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE LOWER 30S. HIGHS IN THE MID 50S. SOUTH WINDS AROUND 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
30S. HIGHS 51 TO 56.
WYZ275-182300-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....27-32.
24 HR TREND......19 DEGREES COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
SOUTHEAST. GUSTS UP TO 15 MPH UNTIL 1200, THEN
20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 0900, THEN SOUTH UNTIL
1300, THEN SOUTHEAST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 0900, THEN SOUTH
UNTIL 1300, THEN SOUTHEAST AROUND 20 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 1000-3000 FT
AGL UNTIL 1700, THEN 600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN
THE MORNING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......1 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 20 TO 25 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY. CHANCE OF RAIN SHOWERS
IN THE MORNING. RAIN SHOWERS AND SNOW SHOWERS
LIKELY IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......17 DEGREES WARMER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 20 MPH UNTIL 1500, THEN
SOUTHWEST. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 25 MPH UNTIL 1300, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 1400, THEN WEST.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. SNOW SHOWERS AND SHOWERS LIKELY IN
THE EVENING, THEN CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS IN
THE LOWER 20S. NORTHWEST WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SNOW SHOWERS. LOWS
AROUND 20. HIGHS IN THE MID 30S. WINDS GENERALLY LESS THAN
10 MPH.
SUNDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 30S. HIGHS IN THE LOWER 40S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS
AROUND 30. HIGHS IN THE LOWER 50S. SOUTH WINDS AROUND 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS
47 TO 52.
WYZ276-182300-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 15 MPH UNTIL 1500, THEN
SOUTH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 20 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1500, THEN SOUTH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1300, THEN 1200-3200 FT
AGL UNTIL 1700, THEN 600-1200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY. SLIGHT CHANCE OF SNOW
SHOWERS UNTIL EARLY MORNING. SLIGHT CHANCE OF
RAIN SHOWERS IN THE LATE EVENING AND EARLY
MORNING, THEN CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS EARLY IN THE MORNING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WINDY. SOUTH WINDS 20 TO 25 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN SOUTHWEST AROUND
30 MPH WITH GUSTS TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTH 25 TO 30 MPH UNTIL 2400, THEN SOUTHWEST
35 TO 40 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 2400, THEN 35 TO
40 MPH.
MIXING HEIGHT.......600-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. SNOW SHOWERS LIKELY AND CHANCE
OF RAIN SHOWERS IN THE MORNING, THEN SNOW
SHOWERS AND RAIN SHOWERS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 30 MPH WITH GUSTS
TO AROUND 50 MPH UNTIL 1500, THEN WEST AROUND
20 MPH WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1600, THEN WEST
AROUND 25 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH UNTIL 1000, THEN WEST 45
TO 50 MPH UNTIL 1500, THEN 30 TO 35 MPH UNTIL
1700, THEN AROUND 25 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1100, THEN 1400-3400 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1100, THEN GOOD TO VERY GOOD UNTIL
1600, THEN POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. MOSTLY CLOUDY. SNOW SHOWERS AND SHOWERS
IN THE EVENING, THEN CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS
AROUND 20. NORTHWEST WINDS AROUND 15 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE
MID 30S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S.
SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS AROUND 30. HIGHS IN THE UPPER 40S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
40S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS AROUND 50.
WYZ287-182300-
OWL CREEK MOUNTAINS-
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY UNTIL
0900, THEN SOUTH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 0800, THEN SOUTH UNTIL
1400, THEN SOUTHWEST 20 TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 0800, THEN SOUTH
UNTIL 1300, THEN SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1700, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING. CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS AFTER MIDNIGHT. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........54-60 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 35 MPH UNTIL 2400, THEN AROUND 35 MPH
WITH GUSTS TO AROUND 55 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 2400. 40 TO 45 MPH
AFTER 0200.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 2400. WEST 45 TO
50 MPH AFTER 0200.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS, THEN
RAIN SHOWERS AND SNOW SHOWERS LIKELY LATE IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....41-46.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 45 MPH UNTIL 1500, THEN AROUND 25 MPH
WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 35 TO 40 MPH UNTIL 1600, THEN 25 TO
30 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 40 TO 45 MPH UNTIL 1100, THEN SOUTHWEST 45
TO 50 MPH UNTIL 1600, THEN 30 TO 35 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. PARTLY CLOUDY. SNOW SHOWERS AND SHOWERS
LIKELY IN THE EVENING, THEN CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 20S. NORTHWEST WINDS AROUND 15 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND
10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
40S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE UPPER 40S.
WYZ286-182300-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY BLOWING SNOW EARLY IN THE MORNING.
PATCHY BLOWING SNOW EARLY IN THE AFTERNOON.
PATCHY BLOWING SNOW EARLY IN THE AFTERNOON.
SLIGHT CHANCE OF SNOW SHOWERS LATE IN THE
MORNING. CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. CHANCE OF SNOW 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....26-31.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. WEST WINDS 15 TO 20 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 1500, THEN AROUND 25 MPH
WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1400, THEN AROUND 30
MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1200, THEN AROUND 30
MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY BLOWING SNOW IN THE EVENING. SNOW
SHOWERS THROUGH THE NIGHT. SNOW ACCUMULATION UP
TO 9 INCHES. CHANCE OF SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-31.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........69-75 PERCENT.
24 HR TREND......7 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WINDY. WEST WINDS 30 TO 35 MPH. GUSTS UP TO 45
MPH UNTIL 2400, THEN 55 MPH.
RIDGE TOP WINDS.....WEST 35 TO 40 MPH.
CHC OF WETTING RAIN.40 PERCENT UNTIL 2400, THEN 60 PERCENT.
TRANSPORT WINDS.....WEST 35 TO 40 MPH UNTIL 0200, THEN AROUND 45
MPH.
MIXING HEIGHT.......400-1600 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. SNOW
SHOWERS. SNOW ACCUMULATION UP TO 11 INCHES.
CHANCE OF SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....34-39.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........62-68 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 60 MPH.
RIDGE TOP WINDS.....SOUTHWEST 35 TO 40 MPH.
CHC OF WETTING RAIN.65 PERCENT UNTIL 1200, THEN 80 PERCENT.
TRANSPORT WINDS.....WEST 40 TO 45 MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS IN THE EVENING, THEN CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 14. WEST WINDS AROUND
20 MPH.
SATURDAY
COLDER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW
SHOWERS. LOWS AROUND 15. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 20 MPH.
SUNDAY
NOT AS COLD. MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY AND
CHANCE OF SHOWERS. LOWS AROUND 30. HIGHS IN THE MID 30S. WEST
WINDS AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. SNOW SHOWERS AND SHOWERS LIKELY. LOWS IN
THE MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 20 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS 35 TO 40.
WYZ140-182300-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
LATE IN THE MORNING. CHANCE OF SNOW SHOWERS
LATE IN THE MORNING. SNOW SHOWERS LIKELY IN THE
AFTERNOON. PATCHY BLOWING SNOW EARLY IN THE
AFTERNOON. PATCHY BLOWING SNOW LATE IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 5 INCHES.
CHANCE OF SNOW 70 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....24-29.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........65-71 PERCENT.
24 HR TREND......24 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20
MPH UNTIL 1200, THEN 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1100, THEN 25 TO
30 MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY BLOWING SNOW EARLY IN THE
EVENING, THEN AREAS OF BLOWING SNOW EARLY IN
THE EVENING. PATCHY BLOWING SNOW EARLY IN THE
EVENING. SNOW SHOWERS LIKELY EARLY IN THE
EVENING. SNOW SHOWERS. SNOW ACCUMULATION OF 1
TO 11 INCHES. CHANCE OF SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....24-29.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP
TO 30 MPH UNTIL 2400, THEN 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 2300, THEN AROUND
30 MPH.
CHC OF WETTING RAIN.75 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 0100, THEN AROUND
35 MPH.
MIXING HEIGHT.......400-1600 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS. SNOW ACCUMULATION
OF 1 TO 12 INCHES. CHANCE OF SNOW NEAR 100
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........69-75 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS AROUND 25 MPH WITH
GUSTS TO AROUND 45 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.75 PERCENT UNTIL 1200, THEN 100 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH UNTIL 1000. WEST AFTER
1700.
MIXING HEIGHT.......1200-2800 FT AGL.
SMOKE DISPERSAL.....GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS IN THE EVENING, THEN CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 9. WEST WINDS AROUND
15 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS
AROUND 13. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
NOT AS COLD. SNOW SHOWERS WITH POSSIBLE SHOWERS AND
THUNDERSTORMS LIKELY. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER
30S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
SNOW SHOWERS AND SHOWERS. LOWS IN THE MID 20S. HIGHS IN
THE MID 30S. SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW
SHOWERS. LOWS IN THE MID 20S. HIGHS 33 TO 38.
WYZ415-182300-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN SNOW SHOWERS IN THE AFTERNOON.
PATCHY BLOWING SNOW LATE IN THE AFTERNOON.
AREAS OF BLOWING SNOW LATE IN THE AFTERNOON.
SNOW ACCUMULATION OF 1 TO 4 INCHES. CHANCE OF
SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....24-29.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........67-73 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1400, THEN AROUND
20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1200, THEN 20 TO
25 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........CLOUDY. AREAS OF BLOWING SNOW IN THE EVENING.
SNOW SHOWERS IN THE EVENING. SNOW SHOWERS
LIKELY AFTER MIDNIGHT, THEN SNOW SHOWERS EARLY
IN THE MORNING. SNOW ACCUMULATION OF 4 TO 13
INCHES. CHANCE OF SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....24-29.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........89-95 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS
TO AROUND 30 MPH UNTIL 2400, THEN 20 TO 25 MPH
WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0100, THEN 25 TO
30 MPH.
CHC OF WETTING RAIN.90 PERCENT UNTIL 2400, THEN 70 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 2400, THEN AROUND
30 MPH.
MIXING HEIGHT.......600-1400 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........CLOUDY. SNOW SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF RAIN SHOWERS EARLY IN THE AFTERNOON,
THEN RAIN SHOWERS LATE IN THE AFTERNOON. SNOW
ACCUMULATION OF 1 TO 14 INCHES. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........80-86 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.90 PERCENT UNTIL 1200, THEN 100 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS IN THE EVENING, THEN SNOW
SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 14. WEST WINDS AROUND
20 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS
AROUND 13. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
NOT AS COLD. SNOW SHOWERS, SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 30S.
SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
SNOW SHOWERS AND SHOWERS. LOWS IN THE MID 20S. HIGHS IN
THE MID 30S. SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY AND CHANCE OF
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 30S.
WEDNESDAY
CHANCE OF SNOW SHOWERS IN THE MORNING, THEN SNOW
SHOWERS AND SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID
30S.
WYZ416-182300-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS LATE IN THE
MORNING. CHANCE OF SNOW SHOWERS EARLY IN THE
AFTERNOON, THEN SNOW SHOWERS LIKELY LATE IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 3 INCHES.
CHANCE OF SNOW 70 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....21-26.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH UNTIL 1400, THEN SOUTHWEST 15
TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 15 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH UNTIL 1000. SOUTHWEST 20 TO
25 MPH AFTER 1400.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS THROUGH THE NIGHT.
PATCHY BLOWING SNOW EARLY IN THE EVENING.
PATCHY BLOWING SNOW LATE IN THE EVENING. SNOW
ACCUMULATION OF 2 TO 9 INCHES. CHANCE OF SNOW
90 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....21-26.
24 HR TREND......13 DEGREES WARMER.
MAX HUMIDITY........87-93 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 25
MPH UNTIL 0300, THEN 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 0200, THEN AROUND
25 MPH.
CHC OF WETTING RAIN.75 PERCENT UNTIL 2400, THEN 60 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0100, THEN AROUND
30 MPH.
MIXING HEIGHT.......400-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........CLOUDY. SNOW SHOWERS. SNOW ACCUMULATION OF 3 TO
13 INCHES. CHANCE OF SNOW NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....29-34.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........75-81 PERCENT.
24 HR TREND......17 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 45 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.65 PERCENT UNTIL 1200, THEN 90 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1200, THEN 35 TO
40 MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS IN THE EVENING, THEN SNOW
SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 11. WEST WINDS AROUND
20 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS
AROUND 11. HIGHS AROUND 20. WEST WINDS AROUND 10 MPH.
SUNDAY
NOT AS COLD. SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY WITH SNOW SHOWERS. LOWS IN THE LOWER 20S.
HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 30S.
WYZ288-182300-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS LATE IN THE
MORNING. CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. PATCHY BLOWING SNOW IN THE
AFTERNOON. CHANCE OF SNOW 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....25-30.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 1200, THEN AROUND 25 MPH
WITH GUSTS TO AROUND 40 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1300, THEN 30 TO 35
MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1200, THEN 30 TO 35
MPH.
MIXING HEIGHT.......400-2200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY BLOWING SNOW EARLY IN THE EVENING.
BLOWING SNOW LATE IN THE EVENING. CHANCE OF
SNOW SHOWERS THROUGH THE NIGHT. CHANCE OF SNOW
50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........73-79 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......VERY WINDY. WEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 55 MPH UNTIL 2400, THEN 35 TO 40 MPH
WITH GUSTS TO AROUND 60 MPH.
RIDGE TOP WINDS.....WEST 35 TO 40 MPH UNTIL 2400, THEN 40 TO 45
MPH.
CHC OF WETTING RAIN.30 PERCENT.
TRANSPORT WINDS.....WEST 35 TO 40 MPH UNTIL 2300, THEN 45 TO 50
MPH.
MIXING HEIGHT.......400-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SNOW SHOWERS IN THE MORNING, THEN
SNOW SHOWERS LATE IN THE MORNING. SNOW
ACCUMULATION UP TO 12 INCHES. CHANCE OF SNOW
NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........63-69 PERCENT.
24 HR TREND......15 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 55 MPH.
RIDGE TOP WINDS.....SOUTHWEST 35 TO 40 MPH.
CHC OF WETTING RAIN.45 PERCENT UNTIL 1200, THEN 70 PERCENT.
TRANSPORT WINDS.....WEST 45 TO 50 MPH UNTIL 1700, THEN SOUTHWEST
AROUND 40 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
BREEZY. SNOW SHOWERS IN THE EVENING, THEN SNOW
SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 18. WEST WINDS AROUND
25 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS
AROUND 17. HIGHS IN THE MID 20S. WEST WINDS AROUND 20 MPH.
SUNDAY
NOT AS COOL. SNOW SHOWERS AND CHANCE OF SHOWERS. LOWS
AROUND 30. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS AROUND
20 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS
IN THE UPPER 20S. HIGHS IN THE UPPER 30S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN CHANCE OF SNOW SHOWERS AND SHOWERS IN THE
AFTERNOON. HIGHS IN THE UPPER 30S.
WYZ414-182300-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING,
THEN SNOW SHOWERS IN THE AFTERNOON. AREAS OF
BLOWING SNOW LATE IN THE AFTERNOON. SNOW
ACCUMULATION OF 1 TO 4 INCHES. CHANCE OF SNOW
NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....25-30.
24 HR TREND......9 DEGREES COOLER.
MIN HUMIDITY........65-71 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......400-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. AREAS OF BLOWING SNOW EARLY IN
THE EVENING. PATCHY BLOWING SNOW LATE IN THE
EVENING. SNOW SHOWERS THROUGH THE NIGHT. SNOW
ACCUMULATION OF 1 TO 6 INCHES. CHANCE OF SNOW
NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........87-93 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS
TO AROUND 30 MPH UNTIL 0300, THEN AROUND 25 MPH
WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 0300, THEN AROUND
30 MPH.
CHC OF WETTING RAIN.75 PERCENT UNTIL 2400, THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 2200, THEN AROUND
30 MPH.
MIXING HEIGHT.......400-1400 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS THROUGH THE DAY.
RAIN SHOWERS LATE IN THE AFTERNOON. SNOW
ACCUMULATION UP TO 10 INCHES. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....30-35.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........79-85 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS AROUND 25 MPH WITH
GUSTS TO AROUND 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.70 PERCENT UNTIL 1200, THEN 95 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
COLDER. SNOW SHOWERS AND SHOWERS IN THE EVENING,
THEN SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 17. WEST WINDS
AROUND 20 MPH.
SATURDAY
MOSTLY CLOUDY. SNOW SHOWERS LIKELY. LOWS AROUND 17.
HIGHS IN THE MID 20S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
SNOW SHOWERS AND SHOWERS. LOWS IN THE LOWER 30S. HIGHS
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
SNOW SHOWERS AND SHOWERS. LOWS IN THE UPPER 20S. HIGHS
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SHOWERS.
LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S.
WEDNESDAY
CHANCE OF SNOW SHOWERS AND SHOWERS IN THE MORNING,
THEN SNOW SHOWERS AND SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN
THE UPPER 30S.
WYZ278-182300-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS EARLY IN THE
AFTERNOON, THEN SLIGHT CHANCE OF SNOW SHOWERS
LATE IN THE AFTERNOON. CHANCE OF SNOW 50
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....27-32.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1400. SOUTHWEST AFTER
1700.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SNOW SHOWERS IN THE EVENING. SLIGHT
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT, THEN
CHANCE OF SNOW SHOWERS EARLY IN THE MORNING.
CHANCE OF SNOW 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......9 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 2400, THEN 5 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS IN THE MORNING. SNOW
SHOWERS THROUGH THE DAY. RAIN SHOWERS LIKELY IN
THE AFTERNOON. SNOW ACCUMULATION UP TO 4
INCHES. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 20 MPH WITH GUSTS
TO AROUND 35 MPH UNTIL 1200, THEN AROUND 30 MPH
WITH GUSTS TO AROUND 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 1100, THEN 30 TO
35 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 45 PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH UNTIL 1000, THEN SOUTHWEST 40
TO 45 MPH UNTIL 1400, THEN 45 TO 50 MPH UNTIL
1600, THEN 35 TO 40 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1100, THEN 1400-3200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
SNOW SHOWERS AND SHOWERS IN THE EVENING, THEN
SNOW SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 19. WEST WINDS
AROUND 20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND
16. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH.
SUNDAY
SNOW SHOWERS AND SHOWERS LIKELY. LOWS IN THE UPPER 20S.
HIGHS IN THE UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND SNOW SHOWERS
IN THE AFTERNOON. HIGHS IN THE LOWER 40S.
WYZ277-182300-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
501 AM MST THU DEC 18 2025
...WINTER STORM WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 AM
MST SATURDAY...
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. CHANCE OF SNOW 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....30-35.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20
MPH UNTIL 1500, THEN 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1400, THEN AROUND 25
MPH.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SNOW SHOWERS THROUGH THE NIGHT.
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY
BLOWING SNOW EARLY IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.15 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH UNTIL 0500, THEN AROUND
35 MPH.
MIXING HEIGHT.......400-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS IN THE MORNING. SNOW
SHOWERS THROUGH THE DAY. RAIN SHOWERS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....39-44.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 25 TO 30 MPH WITH GUSTS
TO AROUND 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 65 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1000, THEN 40 TO
45 MPH UNTIL 1600, THEN AROUND 35 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1100, THEN 1400-3400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
BREEZY. SNOW SHOWERS AND SHOWERS. LOWS IN THE MID
20S. WEST WINDS AROUND 25 MPH.
SATURDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE
LOWER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.
SUNDAY
SHOWERS WITH SNOW SHOWERS LIKELY. LOWS IN THE MID 30S.
HIGHS AROUND 40. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS AROUND 30. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS AROUND
10 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER 40S.
WYZ279-182300-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......16 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1400. SOUTHWEST AFTER
1700.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 1800-3800 FT
AGL UNTIL 1700, THEN 800-1000 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1700, THEN POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH UNTIL 2400, THEN AROUND
30 MPH.
MIXING HEIGHT.......600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
AND SNOW SHOWERS LATE IN THE MORNING. CHANCE OF
RAIN SHOWERS AND SNOW SHOWERS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. SOUTHWEST WINDS 20 TO 25 MPH. GUSTS UP
TO 35 MPH UNTIL 1200, THEN 40 MPH.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 1100, THEN WEST 40
TO 45 MPH UNTIL 1700, THEN AROUND 35 MPH.
MIXING HEIGHT.......1600-3600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
BREEZY. MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
SNOW SHOWERS. LOWS IN THE UPPER 20S. WEST WINDS AROUND 25 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE
MID 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 15 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 40S.
SOUTHWEST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE LOWER 30S. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND
15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 40S.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE UPPER 40S.
WYZ289-182300-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 1200, THEN SOUTHWEST AROUND
25 MPH WITH GUSTS TO AROUND 40 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1300, THEN SOUTHWEST
AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1200, THEN SOUTHWEST 30
TO 35 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1100, THEN 2000-3400 FT
AGL UNTIL 1700, THEN 1000-1400 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1700, THEN POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 0200, THEN 35 TO
40 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 35 TO 40 MPH.
MIXING HEIGHT.......400-1400 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SNOW SHOWERS LATE IN THE MORNING.
CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 55 MPH.
RIDGE TOP WINDS.....SOUTHWEST 35 TO 40 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 40 TO 45 MPH UNTIL 1100, THEN 55 TO 60 MPH
UNTIL 1600, THEN 45 TO 50 MPH.
MIXING HEIGHT.......1400-3400 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1100, THEN VERY GOOD UNTIL 1700,
THEN FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
WINDY. CHANCE OF SNOW SHOWERS AND SHOWERS IN THE
EVENING, THEN SNOW SHOWERS AND SHOWERS LIKELY AFTER MIDNIGHT.
LOWS IN THE MID 20S. WEST WINDS AROUND 30 MPH.
SATURDAY
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND
15 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 40S.
SOUTHWEST WINDS AROUND 20 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 20 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
40S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE UPPER 40S.
WYZ300-182300-
CASPER MOUNTAIN-
501 AM MST THU DEC 18 2025
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....29-34.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS 20 TO 25 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGE TOP WINDS.....WEST 25 TO 30 MPH UNTIL 1700, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH UNTIL 1400, THEN SOUTHWEST 30
TO 35 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1700, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1600, THEN POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......27 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS 30 TO 35 MPH WITH GUSTS
TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 2400, THEN 35 TO
40 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 30 TO 35 MPH UNTIL 2100. 40 TO 45 MPH
AFTER 0200.
MIXING HEIGHT.......200-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS
LATE IN THE AFTERNOON. CHANCE OF PRECIPITATION
20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......WINDY. SOUTHWEST WINDS AROUND 30 MPH WITH GUSTS
TO AROUND 50 MPH.
RIDGE TOP WINDS.....SOUTHWEST 30 TO 35 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 40 TO 45 MPH UNTIL 1000, THEN 50 TO 55 MPH
UNTIL 1300, THEN 55 TO 60 MPH UNTIL 1600, THEN
45 TO 50 MPH.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 0900, THEN 2000-4000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 0900, THEN VERY GOOD UNTIL
1100, THEN EXCELLENT UNTIL 1600, THEN GOOD TO
VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
BREEZY. SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS
IN THE EVENING, THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN
THE LOWER 20S. WEST WINDS AROUND 25 MPH.
SATURDAY
COLDER. PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS.
LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S. WEST WINDS AROUND
15 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS AROUND 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER
40S. SOUTHWEST WINDS AROUND 20 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER
30S. HIGHS IN THE UPPER 40S.
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