Cheyenne, Wyoming

Regional Weather Alerts


     

Alert: Red Flag Warning
Area(s): 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
Effective: 2026-08-03 @ 12:09 am -> 2026-08-03 @ 10:00 pm
Onset: 2026-08-03 @ 12:09 am -> 2026-08-03 @ 10:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Riverton WY on 2026-08-03 @ 12:09 am
Headline: Red Flag Warning issued August 2 at 11:09PM MDT until August 3 at 9:00PM MDT by NWS Riverton WY
Description: * 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.

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

* WIND: Northwest 15 to 25 mph with gusts up to 30 to 35 mph.

* HUMIDITY: As low as 8 to 12 percent.

* TEMPERATURES: Lows in the upper 50s. Highs in the lower 80s.

Alert: Red Flag Warning
Area(s): Fall River County Area; Northern Foot Hills; Eastern Foot Hills; Custer County Plains; Pine Ridge Area; Butte County Area; Perkins County; West Central Plains; Ziebach County; Haakon County Area; Badlands Area; Bennett County Area; Weston County Plains
Effective: 2026-08-02 @ 10:41 pm -> 2026-08-03 @ 10:00 am
Onset: 2026-08-03 @ 12:00 pm -> 2026-08-03 @ 9:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Rapid City SD on 2026-08-02 @ 10:41 pm
Headline: Red Flag Warning issued August 2 at 9:41PM MDT until August 3 at 8:00PM MDT by NWS Rapid City SD
Description: ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT MONDAY
DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY
AREA, NORTHERN FOOT HILLS, EASTERN FOOT HILLS, CUSTER COUNTY PLAINS,
PINE RIDGE AREA, BUTTE COUNTY AREA, PERKINS COUNTY, WEST CENTRAL
PLAINS, ZIEBACH COUNTY, HAAKON COUNTY AREA, BADLANDS AREA, BENNETT
COUNTY AREA, AND WESTON COUNTY PLAINS...

* AFFECTED AREA...Fire Weather Zones 317, 322, 323, 324, 325, 326,
327, 328, 329, 330, 331, 332, and 333.

* TIMING...From 11 AM to 8 PM MDT Monday.

* WINDS...North winds 25 to 35 mph with gusts up to 50 mph.

* RELATIVE HUMIDITY...Relative Humidity between 18 to 26 percent.

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

Alert: Red Flag Warning
Area(s): North Laramie Valley/Shirley Basin; Ferris/Seminoe/Shirley Mountains; Central and West Carbon; Southwest Carbon County; Upper North Platte River Basin; North Snowy Range Foothills
Effective: 2026-08-02 @ 10:20 pm -> 2026-08-03 @ 10:00 pm
Onset: 2026-08-02 @ 10:20 pm -> 2026-08-03 @ 10:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Cheyenne WY on 2026-08-02 @ 10:20 pm
Headline: Red Flag Warning issued August 2 at 9:20PM MDT until August 3 at 9:00PM MDT by NWS Cheyenne WY
Description: * AFFECTED AREA...Fire weather zones 420 through 423, 425, and
427.

* WIND...10 to 20 mph with gusts up to 35 mph.

* HUMIDITY...8 to 12 percent.

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

Alert: Red Flag Warning
Area(s): Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland; Middle North Platte River Basin/Niobrara and Converse High Plains; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin
Effective: 2026-08-02 @ 10:20 pm -> 2026-08-03 @ 10:00 pm
Onset: 2026-08-03 @ 12:00 pm -> 2026-08-03 @ 10:00 pm
Severity: Severe
Certainty: Likely
Urgency: Expected
Issued By: NWS Cheyenne WY on 2026-08-02 @ 10:20 pm
Headline: Red Flag Warning issued August 2 at 9:20PM MDT until August 3 at 9:00PM MDT by NWS Cheyenne WY
Description: * AFFECTED AREA...Fire weather zones 417 through 418, and 430
through 433.

* WIND...North winds 10 to 20 mph with gusts up to 35 mph.

* HUMIDITY...10 to 20 percent.

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