Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Northern Campbell; Southern Campbell; Weston County Plains |
| Effective: | 2026-06-09 @ 6:22 am -> 2026-06-09 @ 2:30 pm |
| Onset: | 2026-06-09 @ 12:00 pm -> 2026-06-09 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-06-09 @ 6:22 am |
| Headline: | Red Flag Warning issued June 9 at 5:22AM MDT until June 9 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHERN CAMPBELL, SOUTHERN CAMPBELL, AND WESTON COUNTY PLAINS... .Hot, dry, and windy conditions will develop over the northeastern Wyoming plains this afternoon. Afternoon humidities will drop to 10 to 15 percent with west to southwest winds of 20 to 30 mph, gusting up to 40 mph. A few isolated showers and storms may develop over the area in the afternoon. Any storms may produce lightning along with gusty and erratic winds and be accompanied by little to no rain. The combination of the dry and windy conditions along with dry fuels will support widespread critical fire weather conditions. * AFFECTED AREA...Fire Weather Zones 314, 315, and 317. * TIMING...From 11 AM this morning to 8 PM MDT this evening. * WINDS...Southwest winds 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Relative Humidity between 10 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. |
| Alert: | Red Flag Warning |
| Area(s): | Pine Ridge/Nebraska National Forest; Box Butte/South Sioux/Niobrara River; Lower North Platte River Basin/Scottsbluff National Monument; Lodgepole Creek/Southern Nebraska Panhandle; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-06-09 @ 1:53 am -> 2026-06-09 @ 5:00 pm |
| Onset: | 2026-06-09 @ 1:00 pm -> 2026-06-10 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 1:53 am |
| Headline: | Red Flag Warning issued June 9 at 12:53AM MDT until June 10 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
* WIND...West to southwest winds 15 to 35 MPH with gusts up to 50 MPH. * HUMIDITY...8 to 12 percent. Overnight recoveries as low as 35 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Dry lightning will be possible on Tuesday with isolated storms during the afternoon and evening hours. |
| 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 |
| Effective: | 2026-06-09 @ 1:53 am -> 2026-06-09 @ 5:00 pm |
| Onset: | 2026-06-09 @ 1:00 pm -> 2026-06-10 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-06-09 @ 1:53 am |
| Headline: | Red Flag Warning issued June 9 at 12:53AM MDT until June 10 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT Wednesday. * WIND...West to southwest winds 20 to 40 MPH with gusts up to 55 MPH. * HUMIDITY...10 to 15 percent. Overnight recoveries as low as 35 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Dry lightning will be possible on Tuesday with isolated storms during the afternoon and evening hours. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM |
| Effective: | 2026-06-09 @ 12:09 am -> 2026-06-09 @ 5:00 pm |
| Onset: | 2026-06-09 @ 10:00 am -> 2026-06-10 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-06-09 @ 12:09 am |
| Headline: | Red Flag Warning issued June 8 at 11:09PM MDT until June 10 at 8:00PM MDT by NWS Riverton WY |
| Description: |
* AFFECTED AREA: In Central WY...Fire Weather Zone 280. * COUNTIES AFFECTED: In Central WY...Natrona. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * WIND: West 30 to 40 mph with gusts up to 50 to 60 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the upper 70s to low 80s Tuesday, upper 60s to mid 70s Wednesday. Lows in the mid to upper 40s. * ADDITIONAL INFORMATION: Conditions are expected to improve after sunset Tuesday evening as humidity increases and wind decreases. Critical fire weather conditions are again expected by late Wednesday morning. |