912
WWUS85 KRIW 090655
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
1255 AM MDT Sun Aug 9 2026

WYZ140-275>283-285>289-300-100300-
/O.CON.KRIW.FW.W.0021.000000T0000Z-260810T0300Z/
Yellowstone National Park-North Bighorn Basin/Worland BLM-
Cody Foothills-Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Natrona County/Casper BLM-Johnson County/Casper BLM-
South Bighorn Basin/Worland BLM-
Upper Wind River Basin/Wind River Basin-South Bighorn Mountains-
Absaroka Mountains/North Shoshone NF-Owl Creek Mountains-
East Wind River Mountains/South Shoshone NF-
Granite/Green/Ferris/Rattlesnake Mountains-Casper Mountain-
1255 AM MDT Sun Aug 9 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING...

* AFFECTED AREA:
  In Central WY Fire Zones...280...283...285...288...289...300.
  In North Central WY Fire Zones...275...276...281...282...287.
  In Northwest WY Fire Zones...140...286.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED:
  In Central WY...Fremont...Natrona.
  In North Central WY...Big Horn...Hot Springs...Johnson...Park
                        Washakie.
  In Northwest WY...Yellowstone National Park.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty
  Winds could cause erratic fire behavior.

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

* HUMIDITY: As low as 8 percent.

* TEMPERATURES: Highs in the 90s in the lower elevations. Highs in
  the 80s in the mountains.

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