Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest; Sioux Ranger District Custer National Forest; Sheridan County/Casper BLM |
| Effective: | 2026-10-23 @ 2:30 pm -> 2026-10-24 @ 1:00 am |
| Onset: | 2026-10-23 @ 2:30 pm -> 2026-10-24 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-23 @ 2:30 pm |
| Headline: | Red Flag Warning issued October 23 at 1:30PM MDT until October 24 at 12:00AM MDT by NWS Billings MT |
| Description: |
* IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and wind shift with a cold front will create erratic fire behavior and difficult control of new or existing fires. * AFFECTED AREA: In North Central WY Fire Zone...274. In Southeast MT Fire Zone...131. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In North Central WY...Sheridan. In Northwest SD...Harding. In South Central MT...Big Horn. In Southeast MT...Carter...Fallon...Powder River...Rosebud Treasure. The most dangerous conditions are expected along and southeast of a Baker Montana to Sheridan Wyoming line. * COLD FRONT: Late afternoon into early evening. * WIND: Southwest 20 to 30 mph gusting up to 45 mph. Winds shifting to the northwest behind a late day cold front, with continued gusts to 45 mph through much of tonight. * HUMIDITY: Minimums of 14 to 20 percent. * TEMPERATURES: Highs of 75 to 85 degrees. |
| Alert: | High Wind Warning |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-10-23 @ 1:57 pm -> 2026-10-23 @ 7:00 pm |
| Onset: | 2026-10-23 @ 1:57 pm -> 2026-10-23 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-10-23 @ 1:57 pm |
| Headline: | High Wind Warning issued October 23 at 12:57PM MDT until October 23 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Southwest winds 35 to 45 mph with gusts of 55 to 60 mph. Higher gusts up to 70 to 80 mph will be possible on the south side of Casper, near Outer Drive/HWY 258 and the northern foothills of Casper Mountain. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. |
| Alert: | High Wind Warning |
| Area(s): | Lander Foothills |
| Effective: | 2026-10-23 @ 1:57 pm -> 2026-10-23 @ 7:00 pm |
| Onset: | 2026-10-23 @ 1:57 pm -> 2026-10-23 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-10-23 @ 1:57 pm |
| Headline: | High Wind Warning issued October 23 at 12:57PM MDT until October 23 at 6:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Southwest winds 35 to 45 mph with gusts of 55 to 65 mph. Isolated gusts up to 70 mph cannot be ruled out. * WHERE...Lander Foothills. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. |
| Alert: | High Wind Warning |
| Area(s): | Northern Campbell; Southern Campbell |
| Effective: | 2026-10-23 @ 1:15 pm -> 2026-10-23 @ 7:00 pm |
| Onset: | 2026-10-23 @ 1:15 pm -> 2026-10-23 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-10-23 @ 1:15 pm |
| Headline: | High Wind Warning issued October 23 at 12:15PM MDT until October 23 at 6:00PM MDT by NWS Rapid City SD |
| Description: |
* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph. * WHERE...Northern Campbell and Southern Campbell. * WHEN...Until 6 PM MDT this evening. * IMPACTS...The high winds may damage roofs, small outbuildings, and signs. Power outages are possible. Travel could be difficult, especially for high profile vehicles. Strong winds can cause blowing dust, reduced visibility, and flying debris. |
| Alert: | Red Flag Warning |
| Area(s): | Northern Foot Hills; Butte County Area; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains; Wyoming Black Hills |
| Effective: | 2026-10-23 @ 11:42 am -> 2026-10-24 @ 12:00 am |
| Onset: | 2026-10-23 @ 12:00 pm -> 2026-10-24 @ 12:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-10-23 @ 11:42 am |
| Headline: | Red Flag Warning issued October 23 at 10:42AM MDT until October 23 at 11:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHERN FOOT HILLS, BUTTE COUNTY AREA, NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, WESTON COUNTY PLAINS, AND WYOMING BLACK HILLS... .Warm temperatures, humidities as low as 13%, and southwest winds gusting to 50 mph ahead of an approaching cold front will create widespread critical fire weather conditions Friday afternoon through Friday evening. Southwest winds increase over northeastern Wyoming after 10 am Friday morning with sustained winds of 25 to 35 mph and gusts of 40 to 50 mph through the afternoon. Winds will shift to the northwest after midnight as the front moves through. While some showers may accompany the front, not expecting any widespread wetting rains. * AFFECTED AREA...Fire Weather Zones 314, 315, 316, 317, 318, 323, and 327. * TIMING...Until 11 PM MDT this evening. * WINDS...Southwest winds 25 to 35 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 13 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. |
| Alert: | Special Weather Statement |
| Area(s): | Niobrara County |
| Effective: | 2026-10-23 @ 2:41 am -> 2026-10-23 @ 7:00 pm |
| Onset: | 2026-10-23 @ 2:41 am |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-10-23 @ 2:41 am |
| Headline: | Special Weather Statement issued October 23 at 1:41AM MDT by NWS Cheyenne WY |
| Description: |
Elevated fire concerns are anticipated this afternoon across northern portions of Niobrara County. Afternoon humidity will drop to around 15 to 20% with breezy winds. Fires will spread more easily under these conditions. Outdoor burning is not recommended. Expect improving conditions after sunset. |
| Alert: | High Wind Warning |
| Area(s): | Ferris/Seminoe/Shirley Mountains; Shirley Basin; Central Carbon County; North Snowy Range Foothills; Southwest Carbon County |
| Effective: | 2026-10-23 @ 2:20 am -> 2026-10-23 @ 4:00 pm |
| Onset: | 2026-10-23 @ 6:00 am -> 2026-10-23 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-10-23 @ 2:20 am |
| Headline: | High Wind Warning issued October 23 at 1:20AM MDT until October 23 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80, Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Carbon County, and Southwest Carbon County. * WHEN...From 5 AM early this morning to 3 PM MDT this afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | Red Flag Warning |
| Area(s): | Johnson County/Casper BLM |
| Effective: | 2026-10-22 @ 11:45 pm -> 2026-10-23 @ 9:00 pm |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-23 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-10-22 @ 11:45 pm |
| Headline: | Red Flag Warning issued October 22 at 10:45PM MDT until October 23 at 8:00PM MDT by NWS Riverton WY |
| Description: |
* IMPACTS: Low Humidities...Unseasonably Warm Temperatures... Strong Gusty Winds...and Wind Shift with a Cold Front could cause erratic fire behavior. * AFFECTED AREA: In North Central WY...Fire Weather Zone 281. * COUNTIES AFFECTED: In North Central WY...Johnson. * COLD FRONT: Moves in after 6 PM MDT Friday, with northwesterly 20 to 30 mph winds and gusts up to 40 mph. * WIND: Southwest 30 to 40 mph with gusts up to 55 mph. * HUMIDITY: As low as 20 percent. * TEMPERATURES: Highs in the upper 60s. |
| Alert: | Air Quality Alert |
| Area(s): | Northern Campbell; Southern Campbell |
| Effective: | 2026-10-22 @ 9:38 pm -> 2026-10-23 @ 8:00 pm |
| Onset: | 2026-10-22 @ 9:38 pm |
| Severity: | Unknown |
| Certainty: | Unknown |
| Urgency: | Unknown |
| Issued By: | NWS Rapid City SD on 2026-10-22 @ 9:38 pm |
| Headline: | Air Quality Alert issued October 22 at 8:38PM MDT by NWS Rapid City SD |
| Description: |
The following message is transmitted in collaboration with the Wyoming Department of Environmental Quality, Air Quality Division. * WHAT...Strong southwest winds with gusts up to 55 mph. * WHERE...Powder River Basin of northeastern Wyoming. * WHEN...Late Friday morning through early Friday evening. * IMPACTS...The strong winds will create blowing dust. |
