Cheyenne, Wyoming

Regional Weather Alerts


     

Alert: Red Flag Warning
Area(s): Fall River County Area; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains
Effective: 2026-09-07 @ 10:33 am -> 2026-09-07 @ 8:00 pm
Onset: 2026-09-07 @ 12:00 pm -> 2026-09-07 @ 8:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Rapid City SD on 2026-09-07 @ 10:33 am
Headline: Red Flag Warning issued September 7 at 9:33AM MDT until September 7 at 7:00PM MDT by NWS Rapid City SD
Description: ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING DUE
TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY AREA,
NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, AND WESTON
COUNTY PLAINS...

* AFFECTED AREA...Fire Weather Zones 314, 315, 316, 317, and 322.

* TIMING...Until 7 PM MDT this evening.

* WINDS...West to southwest winds 15 to 25 MPH with gusts up to 35
MPH.

* RELATIVE HUMIDITY...Relative Humidity as low as 14 percent.

* IMPACTS...Any fires that develop will spread rapidly. Outdoor
burning is not recommended.

Alert: Red Flag Warning
Area(s): North Bighorn Basin/Worland BLM; South Bighorn Basin/Worland BLM
Effective: 2026-09-07 @ 1:52 am -> 2026-09-07 @ 8:00 pm
Onset: 2026-09-07 @ 1:00 pm -> 2026-09-07 @ 8:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Riverton WY on 2026-09-07 @ 1:52 am
Headline: Red Flag Warning issued September 7 at 12:52AM MDT until September 7 at 7:00PM MDT by NWS Riverton WY
Description: The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon today to 7 PM MDT this
evening.

* IMPACTS: Low Humidities...Strong Gusty Winds...and Wind Shift
with a Cold Front could cause erratic fire behavior.

* AFFECTED AREA:
In North Central WY...Fire Weather Zones 275 and 282.

* COUNTIES AFFECTED:
In North Central WY...Big Horn...Hot Springs...Park...Washakie.

* COLD FRONT: A cold front will push into northern portions of the
Bighorn Basin after 1400, reaching Greybull/Basin by 1800. The
front will pass through the rest of the Bighorn Basin by 2100.

* WIND: West 15 to 25 mph with gusts up to 30 mph.

* HUMIDITY: As low as 13 percent.

TOP