870 
WWUS85 KRIW 050748
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
148 AM MDT Wed Aug 5 2026

WYZ277>279-060300-
/O.NEW.KRIW.FW.W.0018.260805T1800Z-260806T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
148 AM MDT Wed Aug 5 2026

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 9 PM MDT this
evening.

* IMPACTS: Low Humidities 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.

* HUMIDITY: As low as 6 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

533 
WWUS85 KRIW 060250
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
850 PM MDT Wed Aug 5 2026

WYZ277>279-060400-
/O.EXP.KRIW.FW.W.0018.000000T0000Z-260806T0300Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
850 PM MDT Wed Aug 5 2026

...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING...

Wind has dropped well below Red Flag thresholds, thus the Warning
will be allowed to expire at 9 PM MDT. Fire weather conditions will
remain elevated overnight as humidity recovery will be very poor.

$$

http://weather.gov/riverton