102
FNUS55 KRIW 201050
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
450 AM MDT WED MAY 20 2026
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
VIRGA SHOWERS WILL DEVELOP OVER ZONE 140 AFTER 1200, WITH ZONES
415 AND 416 DEVELOPING BY 1400. WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE FROM THESE SHOWERS. OTHERWISE, WINDS WILL BE LIGHT (15
MPH OR LESS) OUTSIDE OF ANY POTENTIAL OUTFLOW. PRECIPITATION
CHANCES BEGIN TO INCREASE OVER ZONES 140/415 BETWEEN 1800 AND 2100
WITH A 60 TO 80% CHANCE FOR A WETTING RAIN AFTER MIDNIGHT. SNOW
LEVELS WILL DROP THROUGH THE NIGHT, REACHING 7000 FT BY SUNRISE
THURSDAY MORNING.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
***FREEZE WARNING IN EFFECT FOR ZONES 282, 283 AND 289 UNTIL 8 AM
MDT THIS MORNING***
VIRGA SHOWERS WILL DEVELOP OVER ZONES 286/288 AFTER 1200, MOVING
OVER THE BIGHORN AND WIND RIVER BASINS THROUGH THE AFTERNOON.
WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE FROM THESE SHOWERS.
OTHERWISE, WINDS WILL BE LIGHT (15 MPH OR LESS) OUTSIDE OF ANY
POTENTIAL OUTFLOW. PRECIPITATION CHANCES BEGIN TO INCREASE OVER
ZONE 286 BETWEEN 1800 AND 2100 AND ZONE 276 AFTER MIDNIGHT. THERE
IS A 60 TO 90% CHANCE FOR A WETTING RAIN AFTER MIDNIGHT. SNOW
LEVELS WILL DROP THROUGH THE NIGHT, REACHING 7000 FT BY SUNRISE
THURSDAY MORNING.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
***FREEZE WARNING IN EFFECT FOR ZONES 280, 281 AND 289 UNTIL 8 AM
MDT THIS MORNING***
VIRGA SHOWERS WILL DEVELOP OVER THE SALT RIVER/WYOMING RANGES
AFTER 1200, MOVING OVER ZONE 278 THROUGH THE AFTERNOON. WIND
GUSTS UP TO 45 MPH WILL BE POSSIBLE FROM THESE SHOWERS.
OTHERWISE, WINDS WILL BE LIGHT (15 MPH OR LESS) OUTSIDE OF ANY
POTENTIAL OUTFLOW. PRECIPITATION CHANCES BEGIN TO INCREASE OVER
ZONES 277/278/279 AFTER 0300 THURSDAY MORNING.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-211300-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
450 AM MDT WED MAY 20 2026
..FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........17-23 PERCENT.
24 HR TREND......18 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 8600-10600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......7 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
NORTH UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY 4-7
MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......42 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHEAST 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......1600-3600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
SHOWERS, SLIGHT CHANCE OF THUNDERSTORMS AND
SNOW SHOWERS IN THE EVENING, THEN SHOWERS AND SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. NORTH WINDS
AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
WARMER. MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN
THE UPPER 60S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
WYZ283-211300-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
450 AM MDT WED MAY 20 2026
..FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 8200-10200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS EARLY IN THE EVENING. SLIGHT
CHANCE OF SHOWERS. SLIGHT CHANCE OF SNOW
SHOWERS EARLY IN THE MORNING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE
MORNING. SHOWERS THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........67-73 PERCENT.
24 HR TREND......48 PERCENT WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH. GUSTS UP TO 20
MPH UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....NORTHEAST 15 TO 20 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN 70 PERCENT.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN
THE LOWER 30S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN
THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
WARMER. MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS
AROUND 70. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
WYZ285-211300-
SOUTH BIGHORN MOUNTAINS-
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......3400-5400 FT AGL UNTIL 1200, THEN 8400-10400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE MORNING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......29 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF SNOW SHOWERS EARLY IN THE MORNING.
SHOWERS AND SNOW SHOWERS LIKELY LATE IN THE
MORNING, THEN SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....41-46.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........74-80 PERCENT.
24 HR TREND......52 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN 90 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......600-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SNOW
SHOWERS AND SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN
THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
60S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70. WEST WINDS
AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE MID
70S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ281-211300-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
450 AM MDT WED MAY 20 2026
..FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........18-24 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 1200, THEN 10400-12400
FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........83-89 PERCENT.
24 HR TREND......26 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......4600-6600 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
MORNING. SHOWERS LIKELY LATE IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........64-70 PERCENT.
24 HR TREND......43 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
35 MPH UNTIL 1500, THEN AROUND 20 MPH WITH
GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....NORTH 15 TO 20 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 30 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE MID 30S. NORTHWEST WINDS AROUND
10 MPH.
FRIDAY
WARMER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
WARMER. MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN
THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE MID
80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.
WYZ282-211300-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
450 AM MDT WED MAY 20 2026
..FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. CHANCE OF
SHOWERS LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........16-22 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9000-11000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS EARLY IN THE EVENING. SLIGHT
CHANCE OF SHOWERS IN THE EVENING. CHANCE OF
SHOWERS AFTER MIDNIGHT. CHANCE OF SHOWERS 50
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........85-91 PERCENT.
24 HR TREND......31 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF SNOW SHOWERS IN THE MORNING, THEN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........66-72 PERCENT.
24 HR TREND......46 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH UNTIL 1200, THEN
AROUND 20 MPH. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.35 PERCENT UNTIL 1200, THEN 55 PERCENT.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN
THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
WARMER. MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN
THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS 81 TO
86.
WYZ275-211300-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF SHOWERS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 8000-10000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY AFTER MIDNIGHT. CHANCE OF PRECIPITATION
70 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....34-39.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........85-91 PERCENT.
24 HR TREND......39 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 20
MPH UNTIL 2400, THEN 30 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 2400, THEN 30 PERCENT.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 800-1400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING. SHOWERS THROUGH THE DAY. SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. NO SNOW
ACCUMULATION. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....43-48.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........61-67 PERCENT.
24 HR TREND......39 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 45 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 25 MPH.
CHC OF WETTING RAIN.65 PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 25 MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 30S. NORTH WINDS AROUND 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.
WYZ276-211300-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS LATE
IN THE MORNING. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 6400-8400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN
SHOWERS LIKELY AND SNOW SHOWERS AFTER MIDNIGHT.
NO SNOW ACCUMULATION. CHANCE OF PRECIPITATION
90 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........90-96 PERCENT.
24 HR TREND......43 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH. GUSTS UP TO 15 MPH
UNTIL 2400, THEN 30 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 2400, THEN 65 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 1000-1400 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........CLOUDY. SHOWERS AND SNOW SHOWERS LIKELY EARLY
IN THE MORNING, THEN SHOWERS AND SNOW SHOWERS
EARLY IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. SNOW
ACCUMULATION UP TO 2 INCHES. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......40 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. NORTH WINDS 20 TO 25 MPH WITH GUSTS TO
AROUND 45 MPH.
RIDGE TOP WINDS.....NORTH AROUND 25 MPH.
CHC OF WETTING RAIN.80 PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 25 MPH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS IN THE EVENING. LOWS IN THE LOWER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS AROUND 40. HIGHS AROUND 60.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. WEST
WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S.
WYZ287-211300-
OWL CREEK MOUNTAINS-
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS IN THE MORNING. CHANCE OF SHOWERS,
SNOW SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
EVENING. SHOWERS AND SNOW SHOWERS LIKELY AFTER
MIDNIGHT. NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........87-93 PERCENT.
24 HR TREND......39 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-1200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SHOWERS THROUGH
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 2 INCHES.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....39-44.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........76-82 PERCENT.
24 HR TREND......49 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. NORTH WINDS AROUND 10 MPH UNTIL 0900,
THEN 20 TO 25 MPH. GUSTS UP TO 40 MPH.
RIDGE TOP WINDS.....NORTH 20 TO 25 MPH.
CHC OF WETTING RAIN.70 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 1200, THEN AROUND 30
MPH.
MIXING HEIGHT.......1000-2600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS IN THE EVENING. LOWS IN THE LOWER 30S. NORTHWEST
WINDS AROUND 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 70S. WEST WINDS
AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE MID 70S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ286-211300-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF SHOWERS LATE IN THE
MORNING, THEN CHANCE OF SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. SNOW SHOWERS
THROUGH THE NIGHT. SHOWERS AFTER MIDNIGHT. SNOW
ACCUMULATION UP TO 5 INCHES. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........87-93 PERCENT.
24 HR TREND......30 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.25 PERCENT UNTIL 2400, THEN 65 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS THROUGH THE DAY. SHOWERS
LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP
TO 5 INCHES. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....36-41.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........68-74 PERCENT.
24 HR TREND......38 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHEAST 10 TO 15 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.80 PERCENT UNTIL 1200, THEN 45 PERCENT.
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING. LOWS IN THE LOWER 20S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN
THE LOWER 30S. HIGHS IN THE UPPER 40S. WINDS GENERALLY LESS THAN
10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
50S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. WEST WINDS
AROUND 15 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
TUESDAY
MOSTLY SUNNY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ140-211300-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SNOW SHOWERS AND SHOWERS IN THE
MORNING, THEN SHOWERS, SNOW SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. SNOW SHOWERS
THROUGH THE NIGHT. SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 4
INCHES. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........90-96 PERCENT.
24 HR TREND......25 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.57 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN NORTH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS IN THE MORNING,
THEN SLIGHT CHANCE OF THUNDERSTORMS, SHOWERS
AND SNOW SHOWERS IN THE AFTERNOON. SNOW
ACCUMULATION UP TO 3 INCHES. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....41-46.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.45 PERCENT UNTIL 1200, THEN 5 PERCENT.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE LOWER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN
10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ415-211300-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN
THE MORNING, THEN CHANCE OF SNOW SHOWERS,
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 6200-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SHOWERS LIKELY
IN THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. SNOW SHOWERS AND SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 2
INCHES. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....27-32.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........90-96 PERCENT.
24 HR TREND......28 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 2400, THEN 70 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. SNOW SHOWERS AND SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....41-46.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........67-73 PERCENT.
24 HR TREND......29 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.65 PERCENT UNTIL 1200, THEN 55 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 2800-4000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE LOWER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ416-211300-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
LATE IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF SNOW
SHOWERS AND SHOWERS EARLY IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND
SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. SNOW SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH.
CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....26-31.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........89-95 PERCENT.
24 HR TREND......23 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 2400, THEN 30 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. SNOW SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS AND SHOWERS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........73-79 PERCENT.
24 HR TREND......35 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
CHC OF WETTING RAIN.70 PERCENT UNTIL 1200, THEN 90 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER
20S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS AND
SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 60.
WYZ288-211300-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS IN
THE MORNING. CHANCE OF SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 15 MPH
UNTIL 1200, THEN 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. SNOW
SHOWERS LIKELY AND SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........85-91 PERCENT.
24 HR TREND......22 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 2400, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. SNOW SHOWERS AND SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 5 INCHES.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........75-81 PERCENT.
24 HR TREND......44 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.50 PERCENT UNTIL 1200, THEN 90 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN NORTHEAST.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS AND
SHOWERS IN THE EVENING, THEN SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 20S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. WEST WINDS
AROUND 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 62 TO
67.
WYZ414-211300-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 7000-8600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE EVENING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. SNOW SHOWERS
AND SHOWERS AFTER MIDNIGHT. SNOW ACCUMULATION
UP TO 1 INCH. CHANCE OF PRECIPITATION 90
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........89-95 PERCENT.
24 HR TREND......22 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 25
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 2400, THEN 30 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. SNOW SHOWERS AND SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........63-69 PERCENT.
24 HR TREND......31 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.52 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3400-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING. LOWS IN THE UPPER
20S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ278-211300-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE AFTERNOON. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 8200-10000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE EVENING. CHANCE OF SHOWERS AND SNOW SHOWERS
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........84-90 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING. SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS AND
SLIGHT CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........60-66 PERCENT.
24 HR TREND......30 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHWEST AROUND 10 MPH UNTIL 1500, THEN
NORTHWEST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN NORTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE
MID 20S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS 69 TO
74.
WYZ277-211300-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 8200-9800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND SNOW SHOWERS AFTER
MIDNIGHT. CHANCE OF SHOWERS AND SNOW SHOWERS
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........85-91 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 2400, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......3800-5800 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING. SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS AND
SLIGHT CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
NO SNOW ACCUMULATION. CHANCE OF PRECIPITATION
90 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......29 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.20 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 20S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER
50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 69 TO
74.
WYZ279-211300-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......13 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 7200-9200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND SNOW SHOWERS EARLY IN THE MORNING.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........69-75 PERCENT.
24 HR TREND......1 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......4000-6000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. NO SNOW
ACCUMULATION. CHANCE OF PRECIPITATION NEAR 100
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........57-63 PERCENT.
24 HR TREND......38 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 45 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2200-4200 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT
CHANCE OF SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND
30. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
MID 70S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ289-211300-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
450 AM MDT WED MAY 20 2026
..FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......23 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF 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......10 DEGREES WARMER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN SHOWERS, SLIGHT
CHANCE OF THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. NO SNOW ACCUMULATION. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....43-48.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........67-73 PERCENT.
24 HR TREND......39 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH UNTIL 1500, THEN NORTH. GUSTS UP
TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 55 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN
NORTHWEST.
MIXING HEIGHT.......2000-4000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. SHOWERS, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AND CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS AROUND 30.
NORTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER
50S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
MID 70S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ300-211300-
CASPER MOUNTAIN-
450 AM MDT WED MAY 20 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......13 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......32 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 1200, THEN
WEST. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 6800-8800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......5 PERCENT DRIER.
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.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SNOW
SHOWERS LATE IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........60-66 PERCENT.
24 HR TREND......29 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
SHOWERS, SNOW SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS AND SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 30S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS, SNOW
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70.
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