WWUS85 KRIW 201937

RFWRIW



URGENT - FIRE WEATHER MESSAGE

National Weather Service Riverton WY

137 PM MDT Fri Mar 20 2026



WYZ277>279-211300-

/O.CON.KRIW.FW.W.0005.000000T0000Z-260322T0300Z/

Lincoln and Uinta Counties/Lower Elevations-

Upper Green River Basin/Rock Springs BLM-

Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-

137 PM MDT Fri Mar 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY...



* IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and 

  Strong Gusty Winds could cause erratic fire behavior. 



* AFFECTED AREA: 

  In Southwest WY Fire Zones...277...279.

  In West Central WY Fire Zone....278.



* COUNTIES AFFECTED: 

  In Southwest WY...Sweetwater...Uinta.

  In West Central WY...Lincoln...Sublette.



* WIND: West 10 to 20 mph with gusts up to 30 mph today; 20 to 30

  mph with gusts to 40 mph Saturday.



* HUMIDITY: 8 to 13 percent.



* TEMPERATURES: Highs in the 70s.



* ADDITIONAL DETAILS: Conditions are expected to improve during the

  overnight hours.



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.



&&



$$



WYZ276-282-283-287-211300-

/O.CON.KRIW.FW.W.0005.000000T0000Z-260322T0300Z/

Cody Foothills-South Bighorn Basin/Worland BLM-

Upper Wind River Basin/Wind River Basin-Owl Creek Mountains-

137 PM MDT Fri Mar 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY...



* IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and 

  Strong Gusty Winds could cause erratic fire behavior. 



* AFFECTED AREA: 

  In Central WY Fire Zone....283.

  In North Central WY Fire Zones...276...282...287.



* COUNTIES AFFECTED: 

  In Central WY...Fremont.

  In North Central WY...Hot Springs...Park...Washakie.



* WIND: West to southwest 10 to 20 mph with gusts to 25 to 30 mph

  today; west 20 to 30 mph with gusts to 50 mph Saturday.



* HUMIDITY: 9 to 14 percent.



* TEMPERATURES: Highs in the upper 70s to middle 80s.



* ADDITIONAL DETAILS: Conditions are expected to improve during the

  overnight hours.



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.



&&



$$



WYZ280-281-289-211300-

/O.CON.KRIW.FW.W.0005.000000T0000Z-260322T0300Z/

Natrona County/Casper BLM-Johnson County/Casper BLM-

Granite/Green/Ferris/Rattlesnake Mountains-

137 PM MDT Fri Mar 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY...



* IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and 

  Strong Gusty Winds could cause erratic fire behavior. 



* AFFECTED AREA: 

  In Central WY Fire Zones...280...289.

  In North Central WY Fire Zone....281.



* COUNTIES AFFECTED: 

  In Central WY...Fremont...Natrona.

  In North Central WY...Johnson.

  In Southwest WY...Sweetwater.



* WIND: Southwest 15 to 25 mph with gusts up to 35 mph today; west

  to southwest 20 to 30 mph with gusts to 45 mph Saturday.



* HUMIDITY: 9 to 14 percent.



* TEMPERATURES: Highs in the mid 70s to lower 80s.



* ADDITIONAL DETAILS: Conditions are expected to improve during the

  overnight hours.



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