WWUS85 KRIW 191855

RFWRIW



URGENT - FIRE WEATHER MESSAGE

National Weather Service Riverton WY

1255 PM MDT Thu Mar 19 2026



WYZ277>279-201300-

/O.CON.KRIW.FW.W.0004.000000T0000Z-260322T0300Z/

Lincoln and Uinta Counties/Lower Elevations-

Upper Green River Basin/Rock Springs BLM-

Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-

1255 PM MDT Thu Mar 19 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 15 to 25 mph with gusts up to 40 mph, especially on

  Saturday.



* HUMIDITY: As low as 10 percent.



* TEMPERATURES: Highs in the lower 70s. Lows in the upper 30s.



* 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.



&&



$$



WYZ276-282-283-287-201300-

/O.CON.KRIW.FW.W.0004.000000T0000Z-260322T0300Z/

Cody Foothills-South Bighorn Basin/Worland BLM-

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

1255 PM MDT Thu Mar 19 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 20 to 30 mph with gusts up to 55 mph, especially on

  Saturday.



* HUMIDITY: As low as 7 percent.



* TEMPERATURES: Highs in the upper 70s. Lows in the mid 40s.



* 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.



&&



$$



WYZ280-281-289-201300-

/O.CON.KRIW.FW.W.0004.000000T0000Z-260322T0300Z/

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

Granite/Green/Ferris/Rattlesnake Mountains-

1255 PM MDT Thu Mar 19 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: West 20 to 30 mph with gusts up to 45 mph, especially on

  Saturday.



* HUMIDITY: As low as 8 percent.



* TEMPERATURES: Highs in the upper 70s. Lows in the mid 40s.



* 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