Cheyenne, Wyoming
Regional Weather Alerts
| 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; Butte County Area; West Central Plains; Ziebach County; Haakon County Area; Badlands Area; Bennett County Area; Mellette and Todd Counties; Tripp County; Northern Campbell; Southern Campbell; Crook County Plains; Weston County Plains; Wyoming Black Hills |
| Effective: | 2026-04-21 @ 2:36 am -> 2026-04-22 @ 8:00 pm |
| Onset: | 2026-04-22 @ 1:00 pm -> 2026-04-21 @ 5:45 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Rapid City SD on 2026-04-21 @ 2:36 am |
| Headline: | Fire Weather Watch issued April 21 at 1:36AM MDT until April 22 at 7:00PM MDT by NWS Rapid City SD |
| Description: |
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 329, 330, 331, 332, 333, 334, AND 335... .Hot, dry, and windy conditions may support widespread critical fire weather conditions Wednesday afternoon. Temperatures on Wednesday will range from the 80s to mid 90s with minimum humidities dropping to as low as 10%. Meanwhile, southwesterly winds will increase through Wednesday morning as a cold front approaches the region. Sustained winds will be at 20 to 30 mph with gusts of 35 to 45 mph. Scattered thunderstorms are possible across western South Dakota on Wednesday afternoon, these storms may produce little precip while being capable of lightning and erratic winds gusting in excess of 50 mph. The National Weather Service in Rapid City has issued a Fire Weather Watch for gusty winds and low relative humidity, which is in effect from Wednesday afternoon through Wednesday evening. * 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, 327 Butte County Area, 329 West Central Plains, 330 Ziebach County, 331 Haakon County Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. |
| Alert: | Fire Weather Watch |
| Area(s): | North Bighorn Basin/Worland BLM; Cody Foothills; Natrona County/Casper BLM; Johnson County/Casper BLM; South Bighorn Basin/Worland BLM; Upper Wind River Basin/Wind River Basin; South Bighorn Mountains; Owl Creek Mountains; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain |
| Effective: | 2026-04-21 @ 2:23 am -> 2026-04-22 @ 9:00 pm |
| Onset: | 2026-04-22 @ 10:00 am -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-04-21 @ 2:23 am |
| Headline: | Fire Weather Watch issued April 21 at 1:23AM MDT until April 22 at 8:00PM MDT by NWS Riverton WY |
| Description: |
The National Weather Service in Riverton has issued a Fire Weather Watch, which is in effect from late Wednesday morning through Wednesday evening. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...283...285...289...300. In North Central WY Fire Zones...275...276...281...282...287. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie. In Southwest WY...Sweetwater. * WIND: Southwest 25 to 35 mph with gusts up to 55 mph. * HUMIDITY: As low as 10 to 15 percent. * ADDITIONAL DETAILS: While wind will not be as strong as on Wednesday, elevated to near critical fire weather conditions will be seen today across much of the same area. |
| 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; Laramie Foothills and High Plains; Laramie East High Plains; Bordeaux/Chugwater/Wheatland; Goshen/Middle-Lower North Platte River Basin |
| Effective: | 2026-04-21 @ 1:34 am -> 2026-04-22 @ 9:00 pm |
| Onset: | 2026-04-21 @ 12:00 pm -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:34 am |
| Headline: | Red Flag Warning issued April 21 at 12:34AM MDT until April 22 at 8:00PM MDT by NWS Cheyenne WY |
| Description: |
...MULTI DAY RED FLAG WARNING IS IN EFFECT UNTIL WEDNESDAY EVENING... * AFFECTED AREA...Fire weather zones 417, 418, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND... Southerly winds 10 to 15 mph gusting up to 35 mph on Tuesday. Southwest winds with gusts between 35 and 50 mph on Wednesday. * HUMIDITY...5 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |
| Alert: | High Wind Watch |
| Area(s): | Ferris/Seminoe/Shirley Mountains; Central Carbon County; Southwest Carbon County; Upper North Platte River Basin |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 4:00 pm |
| Onset: | 2026-04-22 @ 10:00 am -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Central Carbon County, Ferris/Seminoe/Shirley Mountains, Southwest Carbon County, and Upper North Platte River Basin. * WHEN...From Wednesday morning through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Watch |
| Area(s): | Converse County Lower Elevations |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 4:00 pm |
| Onset: | 2026-04-22 @ 7:00 pm -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 3:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...Converse County Lower Elevations. * WHEN...From Wednesday evening through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Watch |
| Area(s): | North Snowy Range Foothills |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 7:00 pm |
| Onset: | 2026-04-22 @ 10:00 am -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 35 to 45 mph with gusts up to 75 mph possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...From Wednesday morning through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Watch |
| Area(s): | Central Laramie Range and Southwest Platte County |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 7:00 pm |
| Onset: | 2026-04-22 @ 4:00 pm -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 35 to 50 mph with gusts up to 80 mph possible. * WHERE...Bordeaux area along Interstate 25 between Chugwater and Wheatland. * WHEN...From Wednesday afternoon through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Watch |
| Area(s): | South Laramie Range; South Laramie Range Foothills |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 7:00 pm |
| Onset: | 2026-04-22 @ 4:00 pm -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 35 to 50 mph with gusts up to 80 mph possible. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...From Wednesday afternoon through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | High Wind Watch |
| Area(s): | Central Laramie County |
| Effective: | 2026-04-21 @ 1:20 am -> 2026-04-23 @ 7:00 pm |
| Onset: | 2026-04-22 @ 4:00 pm -> 2026-04-21 @ 7:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-04-21 @ 1:20 am |
| Headline: | High Wind Watch issued April 21 at 12:20AM MDT until April 23 at 6:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 35 to 45 mph with gusts up to 70 mph possible. * WHERE...Central Laramie County. * WHEN...From Wednesday afternoon through Thursday afternoon. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |