297
WWUS85 KRIW 070712
RFWRIW
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
112 AM MDT THU AUG 7 2025
WYZ280-283-080200-
/O.UPG.KRIW.FW.A.0006.250807T1800Z-250809T0200Z/
/O.EXB.KRIW.FW.W.0009.250807T1800Z-250809T0200Z/
NATRONA COUNTY/CASPER BLM-UPPER WIND RIVER BASIN/WIND RIVER BASIN-
112 AM MDT THU AUG 7 2025
..RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT FRIDAY
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT FRIDAY.
THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.
* 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 35 MPH.
* HUMIDITY: AS LOW AS 8 PERCENT TODAY; AS LOW AS 14 PERCENT FRIDAY.
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.
WYZ300-080200-
/O.UPG.KRIW.FW.A.0006.250807T1800Z-250809T0200Z/
/O.EXB.KRIW.FW.W.0009.250807T1800Z-250809T0200Z/
CASPER MOUNTAIN-
112 AM MDT THU AUG 7 2025
..RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT FRIDAY
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT FRIDAY.
THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.
* 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 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.
* HUMIDITY: AS LOW AS 11 PERCENT.
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.
WYZ285-287-080200-
/O.EXB.KRIW.FW.W.0009.250807T1800Z-250808T0200Z/
SOUTH BIGHORN MOUNTAINS-OWL CREEK MOUNTAINS-
112 AM MDT THU AUG 7 2025
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A RED FLAG
WARNING, WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING.
* AFFECTED AREA:
IN CENTRAL WY FIRE ZONE....285.
IN NORTH CENTRAL WY FIRE ZONE....287.
* COUNTIES AFFECTED:
IN CENTRAL WY...FREMONT...NATRONA.
IN NORTH CENTRAL WY...HOT SPRINGS...JOHNSON...WASHAKIE.
* IMPACTS: LOW HUMIDITIES AND STRONG GUSTY WINDS COULD CAUSE
ERRATIC FIRE BEHAVIOR.
* WIND: WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
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.
WYZ277>279-288-289-414-416-080200-
/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-
112 AM MDT THU AUG 7 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: WIND INCREASING FROM THE WEST TO SOUTHWEST AT 15 TO 25 MPH
WITH GUSTS UP TO AROUND 40 MPH TODAY. FRIDAY WINDS ARE FROM THE
WEST TO NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
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.
HTTP://WEATHER.GOV/RIVERTON
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