Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Upper Wind River Basin/Wind River Basin |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Red Flag Warning issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon Saturday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY...Fire Weather Zone 283. * COUNTIES AFFECTED: In Central WY...Fremont. * WIND: West 15 to 25 mph with gusts up to 45 mph Saturday and Sunday. Southwest 25 to 35 mph with gusts up to 60 mph Monday. Wind will decrease at night. * HUMIDITY: As low as 12 percent. Poor Humidity recovery each night. * TEMPERATURES: Highs in the mid 60s to mid 70s. Lows in upper 30s to lower 40s. |
| Alert: | Red Flag Warning |
| Area(s): | South Bighorn Mountains; Owl Creek Mountains |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Red Flag Warning issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon Saturday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....285. In North Central WY Fire Zone....287. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs...Johnson...Washakie. * WIND: West 20 to 30 mph with gusts up to 50 mph Saturday and Sunday. West 30 to 40 mph with gusts up to 70 mph Monday. Wind will decrease at night. * HUMIDITY: As low as 11 percent. Poor Humidity recovery each night. * TEMPERATURES: Highs in the upper 50s to mid 60s. Lows in the lower to upper 40s. |
| 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 |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Red Flag Warning issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon Saturday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Southwest WY...Sweetwater...Uinta. In West Central WY...Lincoln...Sublette. * WIND: West 15 to 25 mph with gusts up to 35 mph Saturday and Sunday. West 20 to 30 mph with gusts up to 50 mph Monday. Wind will decrease at night. * HUMIDITY: As low as 10 percent. Poor to Fair humidity recovery each night. * TEMPERATURES: Highs in the mid 60s to mid 70s. Lows in the lower to upper 30s. |
| Alert: | Fire Weather Watch |
| Area(s): | North Bighorn Basin/Worland BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-30 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Fire Weather Watch issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Fire Weather Watch, which is in effect from Monday afternoon through Monday evening. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In North Central WY...Fire Weather Zones 275...281 and 282. * COUNTIES AFFECTED: In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. * WIND: West 20 to 30 mph with gusts up to 50 mph. * HUMIDITY: As low as 13 percent. * TEMPERATURES: Highs in the upper 60s to upper 70s. |
| Alert: | Red Flag Warning |
| Area(s): | Cody Foothills |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Red Flag Warning issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon Saturday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In North Central WY...Fire Weather Zone 276. * COUNTIES AFFECTED: In North Central WY...Park. * WIND: West 15 to 25 mph with gusts up to 45 mph Saturday and Sunday. West 25 to 40 mph with gusts up to 65 mph Monday. * HUMIDITY: As low as 10 percent. Poor Humidity recovery each night. * TEMPERATURES: Highs in the mid 60s to mid 70s. Lows in the lower to mid 40s. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain |
| Effective: | 2026-03-27 @ 3:02 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 1:00 pm -> 2026-03-28 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-27 @ 3:02 pm |
| Headline: | Red Flag Warning issued March 27 at 2:02PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon Saturday to 9 PM MDT Monday. the Fire Weather Watch is no longer in effect. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY...Fire Weather Zones 280...289 and 300. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater. * WIND: West 20 to 35 mph with gusts up to 55 mph Saturday and Sunday. West 30 to 40 mph with gusts up to 65 mph Monday. Wind will decrease at night. * HUMIDITY: As low as 10 percent. Poor Humidity recovery each night. * TEMPERATURES: Highs in the mid 60s to lower 70s. Lows in the upper 30s to lower 40s. |
| 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; North Laramie Range and Adjacent High Plains; 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; Southern Laramie Valley; Southern Laramie Range; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-03-27 @ 1:27 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-28 @ 11:00 am -> 2026-03-28 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-27 @ 1:27 pm |
| Headline: | Red Flag Warning issued March 27 at 12:27PM MDT until March 30 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
...RED FLAG WARNING ISSUED SATURDAY THROUGH MONDAY FOR MOST OF SOUTHEAST WYOMING... ...FRED FLAG WARNING ISSUED SUNDAY THROUGH MONDAY FOR THE WESTERN NEBRASKA PANHANDLE... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM Saturday to 9 PM MDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...All of southeast Wyoming except the higher mountains where snow cover remains, including fire weather zones 417, 418, 419, 420, 421, 422, 423, 425, 427, 428, 429, 430, 431, 432, and 433. * WIND...West winds 15 to 25 mph with gusts of 30 to 45 mph mainly between 10AM and 8PM each day. * HUMIDITY...Minimums of 8 to 15 percent during the afternoon, maximums of 35 to 50 percent in the early morning. * ADDITIONAL DETAILS...Widely scattered virga showers Saturday evening may produce isolated dry lightning along with gusty and erratic winds. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |