986
WWUS85 KRIW 061843
RFWRIW
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1243 PM MDT WED AUG 6 2025
WYZ277>279-288-289-414-416-071300-
/O.CON.KRIW.FW.W.0009.000000T0000Z-250809T0200Z/
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
1243 PM MDT WED AUG 6 2025
..RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT FRIDAY
* AFFECTED AREA:
IN CENTRAL WY FIRE ZONES...288...289.
IN SOUTHWEST WY FIRE ZONES...277...279.
IN WEST CENTRAL WY FIRE ZONES...278...414...416.
* COUNTIES AFFECTED:
IN CENTRAL WY...FREMONT...NATRONA.
IN SOUTHWEST WY...SWEETWATER...UINTA.
IN WEST CENTRAL WY...LINCOLN...SUBLETTE.
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS COULD CAUSE
ERRATIC FIRE BEHAVIOR.
* WIND: WEST TO SOUTHWEST WIND 10 TO 20 MPH WITH GUSTS AROUND 30
MPH THROUGH WEDNESDAY. WIND INCREASING FROM THE WEST TO SOUTHWEST
AT 15 TO 25 MPH WITH GUSTS UP TO AROUND 40 MPH THURSDAY. FRIDAY
WINDS ARE FROM THE WEST TO NORTHWEST 15 TO 30 MPH WITH GUSTS UP
TO 40 MPH.
* HUMIDITY: 6 TO 15 PERCENT. POOR RH RECOVERY WEDNESDAY NIGHT INTO
THURSDAY MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.
WYZ280-283-071300-
/O.CON.KRIW.FW.A.0006.250807T1800Z-250809T0200Z/
NATRONA COUNTY/CASPER BLM-UPPER WIND RIVER BASIN/WIND RIVER BASIN-
1243 PM MDT WED AUG 6 2025
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...
* AFFECTED AREA:
IN CENTRAL WY...FIRE WEATHER ZONES 280 AND 283.
* COUNTIES AFFECTED:
IN CENTRAL WY...FREMONT...NATRONA.
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS COULD CAUSE
ERRATIC FIRE BEHAVIOR.
* WIND: WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.
* HUMIDITY: AS LOW AS 8 PERCENT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED
FLAG WARNINGS.
WYZ300-071300-
/O.CON.KRIW.FW.A.0006.250807T1800Z-250809T0200Z/
CASPER MOUNTAIN-
1243 PM MDT WED AUG 6 2025
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY EVENING...
* AFFECTED AREA:
IN CENTRAL WY...FIRE WEATHER ZONE 300.
* COUNTIES AFFECTED:
IN CENTRAL WY...NATRONA.
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS COULD CAUSE
ERRATIC FIRE BEHAVIOR.
* WIND: SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED
FLAG WARNINGS.
HTTP://WEATHER.GOV/RIVERTON
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