Cheyenne, Wyoming
Regional Weather Alerts
| 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; 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; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-03-25 @ 2:12 am -> 2026-03-25 @ 11:00 pm |
| Onset: | 2026-03-25 @ 12:00 pm -> 2026-03-25 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-25 @ 2:12 am |
| Headline: | Red Flag Warning issued March 25 at 1:12AM MDT until March 25 at 10:00PM MDT by NWS Cheyenne WY |
| Description: |
...RED FLAG WARNING ISSUED WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 417, 418, 419, 420, 421, 422, 423, 425, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...FIRE WEATHER ZONES 417, 418, 430, 431, 432, 433, 434, 435, 436, AND 437 * WIND...West winds 15 to 25 mph with gusts of 30 to 45 mph. * HUMIDITY...Between 10 and 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS... A few showers developing Wednesday afternoon and evening will have the potential to produce isolated lightning and gusty/erratic winds in their vicinity. |
| Alert: | Red Flag Warning |
| Area(s): | Upper North Platte River Basin; North Snowy Range Foothills; Southern Laramie Valley; Southern Laramie Range |
| Effective: | 2026-03-25 @ 2:12 am -> 2026-03-25 @ 9:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-25 @ 2:12 am |
| Headline: | Red Flag Warning issued March 25 at 1:12AM MDT until March 25 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
...RED FLAG WARNING ISSUED WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 417, 418, 419, 420, 421, 422, 423, 425, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 8 PM MDT this evening. * AFFECTED AREA...Fire weather zones 420, 421, 422, 423, 425, 427, 428, and 429. * WIND...West winds 20 to 30 mph with gusts of 35 to 50 mph. * HUMIDITY...Between 12 and 17 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |
| Alert: | Red Flag Warning |
| Area(s): | North Laramie Valley/Shirley Basin; Ferris/Seminoe/Shirley Mountains; Central and West Carbon; Southwest Carbon County |
| Effective: | 2026-03-25 @ 2:12 am -> 2026-03-25 @ 9:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 9:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-25 @ 2:12 am |
| Headline: | Red Flag Warning issued March 25 at 1:12AM MDT until March 25 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
...RED FLAG WARNING ISSUED WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 417, 418, 419, 420, 421, 422, 423, 425, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 420, 421, 422, 423, 425, 427, 428, and 429. * WIND...West winds 20 to 30 mph with gusts of 35 to 50 mph. * HUMIDITY...Between 12 and 17 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. |
| Alert: | Red Flag Warning |
| Area(s): | Beartooth Ranger District Custer National Forest; Golden Valley County/Musselshell County; Yellowstone County; Crow Indian Reservation/Big Horn Canyon Rec Area; Sheridan County/Casper BLM |
| Effective: | 2026-03-25 @ 1:53 am -> 2026-03-25 @ 10:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-03-25 @ 1:53 am |
| Headline: | Red Flag Warning issued March 25 at 12:53AM MDT until March 25 at 9:00PM 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 new fire starts. * AFFECTED AREA: In North Central WY Fire Zone...274. In South Central MT Fire Zones...126...127...128...129. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell. In North Central WY...Sheridan. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. * COLD FRONT: Late afternoon into this evening. * WIND: West 20 to 30 mph with gusts up to 50 mph. Shifting to the north with gusts to 40 mph behind the front. * HUMIDITY: As low as 11 percent. * TEMPERATURES: Up to 83 degrees. |
| Alert: | High Wind Warning |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-03-25 @ 1:43 am -> 2026-03-25 @ 4:00 pm |
| Onset: | 2026-03-25 @ 1:43 am -> 2026-03-25 @ 4:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-03-25 @ 1:43 am |
| Headline: | High Wind Warning issued March 25 at 12:43AM MDT until March 25 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 25 to 35 mph with occasional gusts up to 65 mph. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...Until 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): | 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; Badlands Area; Bennett County Area; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains; Wyoming Black Hills |
| Effective: | 2026-03-24 @ 10:55 pm -> 2026-03-25 @ 11:00 pm |
| Onset: | 2026-03-25 @ 12:00 pm -> 2026-03-25 @ 2:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-03-24 @ 10:55 pm |
| Headline: | Red Flag Warning issued March 24 at 9:55PM MDT until March 25 at 10:00PM MDT by NWS Rapid City SD |
| Description: |
...CRITICAL FIRE WEATHER CONDITIONS ACROSS PORTIONS OF NORTHEASTERN WYOMING, THE BLACK HILLS, AND SOUTHWESTERN SOUTH DAKOTA... .Well above average temperatures Wednesday with highs in the 70s to mid 80s; warmest along and south of I90. Very dry air will be in place with daytime relative humidity around 10 to 20 percent. Westerly winds will be strongest across southern Campbell County and far southwestern South Dakota. Expect more southwesterly winds from Pine Ridge northward into Rapid during the early afternoon. The combination of low relative humidity, warm temperatures, gusty winds, and drought conditions supports critical fire weather conditions. Additionally, a cold front will push through the forecast area late Wednesday night into Thursday with gusty northwest winds (and dry conditions) behind the front. * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 315 Southern 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, 332 Badlands Area and 333 Bennett County Area. * WINDS...West 10 to 20 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. |
| Alert: | Red Flag Warning |
| Area(s): | South Bighorn Mountains; Casper Mountain |
| Effective: | 2026-03-24 @ 3:11 pm -> 2026-03-25 @ 10:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-24 @ 3:11 pm |
| Headline: | Red Flag Warning issued March 24 at 2:11PM MDT until March 25 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 to 9 PM MDT Wednesday. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY...Fire Weather Zones 285 and 300. * 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 60 mph for the Bighorn Mountains and gusts up to 45 mph for Casper Mountain. * HUMIDITY: As low as 11 percent below 7000 feet and 14 to 18 percent above 7000 feet. * TEMPERATURES: Highs around 70. |
| Alert: | Red Flag Warning |
| Area(s): | North Bighorn Basin/Worland BLM; Cody Foothills; South Bighorn Basin/Worland BLM |
| Effective: | 2026-03-24 @ 3:11 pm -> 2026-03-25 @ 10:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-24 @ 3:11 pm |
| Headline: | Red Flag Warning issued March 24 at 2:11PM MDT until March 25 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...276 and 282. * COUNTIES AFFECTED: In North Central WY...Big Horn...Hot Springs...Park...Washakie. * WIND: West 15 to 25 mph with gusts up to 50 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the upper 70s to mid 80s. |
| 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; Granite/Green/Ferris/Rattlesnake Mountains |
| Effective: | 2026-03-24 @ 3:11 pm -> 2026-03-25 @ 10:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-24 @ 3:11 pm |
| Headline: | Red Flag Warning issued March 24 at 2:11PM MDT until March 25 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....289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater...Uinta. In West Central WY...Lincoln...Sublette. * WIND: West 15 to 25 mph with gusts up to 45 mph. * HUMIDITY: As low as 11 percent. * TEMPERATURES: Highs in the mid to upper 70s. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM; Johnson County/Casper BLM; Upper Wind River Basin/Wind River Basin |
| Effective: | 2026-03-24 @ 3:11 pm -> 2026-03-25 @ 10:00 pm |
| Onset: | 2026-03-25 @ 1:00 pm -> 2026-03-25 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-03-24 @ 3:11 pm |
| Headline: | Red Flag Warning issued March 24 at 2:11PM MDT until March 25 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 Zones...280...283. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Johnson. * WIND: West 20 to 30 mph with gusts up to 45 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the upper 70s to low 80s. |
| Alert: | Fire Weather Watch |
| 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; Badlands Area; Bennett County Area; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains; Wyoming Black Hills |
| Effective: | 2026-03-24 @ 1:35 pm -> 2026-03-25 @ 11:00 pm |
| Onset: | 2026-03-25 @ 12:00 pm -> 2026-03-24 @ 1:50 pm |
| Severity: | Severe |
| Certainty: | Observed |
| Urgency: | Past |
| Issued By: | NWS Rapid City SD on 2026-03-24 @ 1:35 pm |
| Headline: | The Fire Weather Watch has been replaced. Please see the latest information from NWS Rapid City SD on this developing situation. |
| Description: |
The Fire Weather Watch has been replaced. Please see the latest information from NWS Rapid City SD on this developing situation. |