Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Northern Black Hills; Central Black Hills; Southern Black Hills; Fall River County Area; Northern Foot Hills; Eastern Foot Hills; Custer County Plains; Pine Ridge Area; West Central Plains; Badlands Area; Bennett County Area; Mellette and Todd Counties; Northern Campbell; Crook County Plains; Weston County Plains; Wyoming Black Hills |
| Effective: | 2026-03-29 @ 8:07 pm -> 2026-03-30 @ 9:00 pm |
| Onset: | 2026-03-30 @ 1:00 pm -> 2026-03-30 @ 11:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-03-29 @ 8:07 pm |
| Headline: | Red Flag Warning issued March 29 at 7:07PM MDT until March 30 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHEASTERN WYOMING AND MUCH OF WESTERN SOUTH DAKOTA... .A strong cold front will move through the area later Monday afternoon and Monday evening. Ahead of the cold front, west winds will reach 20 to 30 mph with gusts around 45 mph, as minimum relative humidities drop as low as 12%. Gusty northwest winds will occur behind the cold front. The combination will lead to critical fire weather conditions Monday afternoon and early evening, especially considering antecedent very dry and warm weather as well as the drought. * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 316 Crook County Plains, 317 Weston County Plains, 318 Wyoming Black Hills, 319 Northern Black Hills, 320 Central Black Hills, 321 Southern Black Hills, 322 Fall River County Area, 323 Northern Foot Hills, 324 Eastern Foot Hills, 325 Custer County Plains, 326 Pine Ridge Area, 329 West Central Plains, 332 Badlands Area, 333 Bennett County Area and 334 Mellette and Todd Counties. * WINDS...West 15 to 25 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. |
| Alert: | Red Flag Warning |
| Area(s): | Southern Campbell |
| Effective: | 2026-03-29 @ 8:07 pm -> 2026-03-30 @ 9:00 pm |
| Onset: | 2026-03-30 @ 1:00 pm -> 2026-03-30 @ 11:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-03-29 @ 8:07 pm |
| Headline: | Red Flag Warning issued March 29 at 7:07PM MDT until March 30 at 8:00PM MDT by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR NORTHEASTERN WYOMING AND MUCH OF WESTERN SOUTH DAKOTA... .A strong cold front will move through the area later Monday afternoon and Monday evening. Ahead of the cold front, west winds will reach 20 to 30 mph with gusts around 45 mph, as minimum relative humidities drop as low as 12%. Gusty northwest winds will occur behind the cold front. The combination will lead to critical fire weather conditions Monday afternoon and early evening, especially considering antecedent very dry and warm weather as well as the drought. * AFFECTED AREA...Fire Weather Zone 315 Southern Campbell. * WINDS...West 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 14 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. |
| 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: | 2026-03-29 @ 4:16 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 4:16 pm -> 2026-03-30 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-29 @ 4:16 pm |
| Headline: | Red Flag Warning issued March 29 at 3:16PM MDT until March 30 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
...RED FLAG WARNINGS ARE IN EFFECT THROUGH MONDAY EVENING FOR MOST OF SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE... * 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 today and west winds 20 to 30 mph with gusts of 35 to 55 mph on Monday. * 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 are possible this evening and Monday evening, these may produce a few lightning strikes along with gusty and erratic winds accompanied by little to no rainfall. This evening's activity will be limited, but more widespread showers are expected Monday afternoon and evening. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |
| Alert: | Red Flag Warning |
| Area(s): | Upper Wind River Basin/Wind River Basin |
| Effective: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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 35 mph today. West 30 to 40 mph with gusts up to 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the lower to mid 70s. Lows in the lower 40s. |
| Alert: | Red Flag Warning |
| Area(s): | South Bighorn Mountains; Owl Creek Mountains |
| Effective: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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 15 to 25 mph with gusts up to 35 mph. West 30 to 40 mph with gusts up to 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the 60s. Lows in the mid to upper 40s. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain |
| Effective: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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 15 to 25 mph with gusts up to 40 mph today. West 30 to 40 mph with gusts of 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the upper 60s to lower 70s. Lows in the upper 30s to lower 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: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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 today. West 25 to 35 mph with gusts up to 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the mid 60s to lower 70s. Lows in the upper 20s to upper 30s. |
| Alert: | Red Flag Warning |
| Area(s): | North Bighorn Basin/Worland BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM |
| Effective: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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: Southwest 15 to 25 mph with gusts up to 35 mph today. West 25 to 35 mph with gusts up to 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the lower to upper 70s. Lows in the upper 30s to mid 40s. |
| Alert: | Red Flag Warning |
| Area(s): | Cody Foothills |
| Effective: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 10:00 pm |
| Onset: | 2026-03-29 @ 1:00 pm -> 2026-03-30 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-29 @ 1:00 pm |
| Headline: | Red Flag Warning issued March 29 at 12:00PM MDT until March 30 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* 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 35 mph today. West 30 to 40 mph with gusts of 55 mph Monday. * HUMIDITY: As low as 10 percent. Humidity recovery will be fair tonight. * TEMPERATURES: Highs in the mid 60s to lower 70s. Lows in the mid 40s. |