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: | 2026-10-22 @ 1:14 pm -> 2026-10-23 @ 1:15 pm |
| Onset: | 2026-10-23 @ 1:00 pm -> 2026-10-23 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-10-22 @ 1:14 pm |
| Headline: | Red Flag Warning issued October 22 at 12:14PM MDT until October 23 at 9:00PM MDT by NWS Billings MT |
| Description: |
The National Weather Service in Billings has issued a Red Flag Warning...which is in effect from noon to 9 PM MDT Friday. * IMPACTS: Low humidities, unseasonably warm temperatures, strong gusty winds, and a 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 with gusts up to 45 mph. Winds shifting to the northwest behind the cold front, with continued gusts up to 45 mph through late Friday night. * HUMIDITY: 15 to 25 percent. * TEMPERATURES: 75 to 85 degrees. |
| Alert: | Red Flag Warning |
| Area(s): | Johnson County/Casper BLM |
| Effective: | 2026-10-22 @ 12:31 pm -> 2026-10-23 @ 8:00 am |
| 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 @ 12:31 pm |
| Headline: | Red Flag Warning issued October 22 at 11:31AM MDT until October 23 at 8:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Friday. * 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 Zone 281. * COUNTIES AFFECTED: In North Central WY...Johnson. * COLD FRONT: Moves in after 8 PM MDT Friday, with northerly 20 to 35 mph winds and gusts of 35 to 40 mph. * WIND: Southwest 25 to 35 mph with gusts up to 50 mph. * HUMIDITY: As low as 20 percent. |
| Alert: | Red Flag Warning |
| Area(s): | Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains |
| Effective: | 2026-10-22 @ 11:44 am -> 2026-10-23 @ 2:45 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 2026-10-22 @ 11:44 am |
| Headline: | Red Flag Warning issued October 22 at 10:44AM MDT until October 23 at 11:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM MDT FRIDAY DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, AND WESTON COUNTY PLAINS... .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. The National Weather Service in Rapid City SD has issued a Red Flag Warning in effect from 11 AM to 11 PM MDT Friday. * TIMING...From 11 AM to 11 PM MDT Friday. * 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. |
