826
FNUS75 KRIW 292146
FWSRIW
SPOT FORECAST FOR HORSE FIRE...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
346 PM MDT SUN JUN 29 2025
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON JUNE 30.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE
DISCUSSION
THE WARM AND DRY TREND CONTINUES ON MONDAY. WIND WILL BE LIGHTER
WITH GUSTS GENERALLY REMAINING UNDER 20 MPH. SLIGHTLY INCREASED
MIXING HEIGHTS WILL LEND TO A MORE UNSTABLE ENVIRONMENT DURING THE
AFTERNOON. THIS WILL BRING SOME CUMULUS BUILDUP OVER THE
MOUNTAINS, BUT NO PRECIPITATION IS EXPECTED. A LITTLE WARMER,
DRIER, AND MORE UNSTABLE ON TUESDAY. HUMIDITY RECOVERY WILL BE
POOR FOR THE NEXT COUPLE OF NIGHTS. SHOWER AND THUNDERSTORM
CHANCES INCREASE WEDNESDAY, THOUGH WETTING RAIN CHANCES REMAIN
LOW.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
MONDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...2 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........SOUTHEAST 4 TO 8 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 6 MPH.
RIDGETOP WIND.......SOUTH 10 TO 15 MPH UNTIL 1600, THEN WEST.
MIXING HEIGHT.......2000 FT AGL UNTIL 1000. 10000 FT AGL AFTER
1400.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH UNTIL 1300, THEN
SOUTHWEST.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD BY 1200 AND
VERY GOOD BY 1500.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........42 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY AROUND 5 MPH.
RIDGETOP WIND.......WEST AROUND 10 MPH.
MIXING HEIGHT.......DECREASING TO AROUND 500 FT AGL AFTER 2000.
TRANSPORT WINDS.....WEST 9 TO 12 MPH UNTIL 2400, THEN SOUTH AROUND
10 MPH.
SMOKE DISPERSAL.....GOOD UNTIL 2000, THEN POOR.
TUESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF PCPN......10 PERCENT.
CHANCE OF THUNDER...11 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 3 TO 6 MPH UNTIL 1000,
THEN UPSLOPE/UPVALLEY 4 TO 8 MPH WITH GUSTS
TO 12 MPH.
RIDGETOP WIND.......SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST 10
TO 15 MPH.
MIXING HEIGHT.......INCREASING TO 13000 FT AGL BY 1200.
TRANSPORT WINDS.....SOUTH AROUND 8 MPH UNTIL 1100, THEN WEST 10
TO 15 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO EXCELLENT BY 1200.
FORECAST DAYS 3 THROUGH 5
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
LOWER 50S. HIGHS IN THE MID 70S. MINIMUM HUMIDITY AROUND 29
PERCENT. WEST-SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN
THE LOWER 50S. HIGHS IN THE UPPER 60S. MINIMUM HUMIDITY AROUND 49
PERCENT. WEST WIND 6 TO 12 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. MINIMUM HUMIDITY
AROUND 50 PERCENT. WEST WINDS 6 TO 12 MPH.
FORECASTER...MYERS
REQUESTED BY...REBECCA HIRD
TYPE OF REQUEST...WILDFIRE
.TAG 2516836.1/RIW
.DELDT 06/29/25
.FORMATTERVERSION 2.0.0
.EMAIL RHIRD@BLM.GOV
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