712
WWUS85 KRIW 210137
RFWRIW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Riverton WY
737 PM MDT Sun Jul 20 2025

WYZ282-287-210245-
/O.EXP.KRIW.FW.W.0006.000000T0000Z-250721T0200Z/
South Bighorn Basin/Worland BLM-Owl Creek Mountains-
737 PM MDT Sun Jul 20 2025

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING...

Humidity levels continue to increase, while gusty winds have
decreased, decreasing the fire weather threat. Thus the Red Flag
Warning will expire as scheduled at 8 PM.

$$

WYZ280-211945-
/O.CON.KRIW.FW.W.0006.000000T0000Z-250722T0200Z/
Natrona County/Casper BLM-
737 PM MDT Sun Jul 20 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT MONDAY...

* AFFECTED AREA:
  In Central WY...Fire Weather Zone 280.

* COUNTIES AFFECTED:
  In Central WY...Natrona.

* IMPACTS: Poor Humidity Recovery tonight, and Low Humidities and
  Strong Gusty Winds Monday could cause erratic fire behavior.

* WIND: Southwest 5 to 15 mph with gusts up to 30 mph.

* HUMIDITY: As low as 10 percent Monday afternoon.

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>279-289-211945-
/O.CON.KRIW.FW.W.0006.000000T0000Z-250722T0200Z/
Lincoln and Uinta Counties/Lower Elevations-
Upper Green River Basin/Rock Springs BLM-
Sweetwater County/Rock Springs BLM/Flaming Gorge NRA-
Granite/Green/Ferris/Rattlesnake Mountains-
737 PM MDT Sun Jul 20 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT MONDAY...

* IMPACTS: Poor Humidity Recovery tonight, and Low Humidities and
  Strong Gusty Winds Monday could cause erratic fire behavior.

* AFFECTED AREA:
  In Central WY Fire Zone....289.
  In Southwest WY Fire Zones...277...279.
  In West Central WY Fire Zone....278.

* COUNTIES AFFECTED:
  In Central WY...Fremont...Natrona.
  In Southwest WY...Sweetwater...Uinta.
  In West Central WY...Lincoln...Sublette.

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

* HUMIDITY: As low as 11 percent Monday afternoon.

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.

&&

$$

WYZ283-288-211945-
/O.CON.KRIW.FW.W.0006.000000T0000Z-250722T0200Z/
Upper Wind River Basin/Wind River Basin-
East Wind River Mountains/South Shoshone NF-
737 PM MDT Sun Jul 20 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT MONDAY...

* IMPACTS: Poor Humidity Recovery tonight, and Low Humidities and
  Strong Gusty Winds Monday could cause erratic fire behavior.

* AFFECTED AREA:
  In Central WY...Fire Weather Zones 283 and 288.

* COUNTIES AFFECTED:
  In Central WY...Fremont.
  In West Central WY...Sublette.

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

* HUMIDITY: As low as 9 percent Monday afternoon.

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