Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Red Flag Warning |
| Area(s): | Southern Black Hills; Fall River County Area; Custer County Plains; Pine Ridge Area; Badlands Area; Bennett County Area; Mellette and Todd Counties; Tripp County; Southern Campbell; Weston County Plains |
| Effective: | 2026-02-15 @ 1:27 pm -> 2026-02-15 @ 6:00 pm |
| Onset: | 2026-02-15 @ 1:27 pm -> 2026-02-15 @ 6:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Rapid City SD on 2026-02-15 @ 1:27 pm |
| Headline: | Red Flag Warning issued February 15 at 12:27PM MST until February 15 at 5:00PM MST by NWS Rapid City SD |
| Description: |
...RED FLAG WARNING THIS AFTERNOON FOR PORTIONS OF NORTHEAST WY INTO SOUTH CENTRAL SD... .Unseasonably warm weather will combine with very dry air (relative humidity as low as 14 percent) and gusty westerly winds (gusts 25 to 35 mph) to create critical fire weather conditions this afternoon for portions of northeastern Wyoming through south- central South Dakota. * AFFECTED AREA...Fire Weather Zones 315 Southern Campbell, 317 Weston County Plains, 321 Southern Black Hills, 322 Fall River County Area, 325 Custer County Plains, 326 Pine Ridge Area, 332 Badlands Area, 333 Bennett County Area, 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...West 12 to 25 mph with gusts from 25 to 35 mph. * RELATIVE HUMIDITY...As low as 14 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. |
| Alert: | High Wind Watch |
| Area(s): | Shirley Basin; North Snowy Range Foothills; Southwest Carbon County; Upper North Platte River Basin |
| Effective: | 2026-02-15 @ 1:25 pm -> 2026-02-17 @ 9:00 pm |
| Onset: | 2026-02-17 @ 3:00 am -> 2026-02-16 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 1:25 pm |
| Headline: | High Wind Watch issued February 15 at 12:25PM MST until February 17 at 8:00PM MST by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 30 to 45 mph with gusts up to 65 mph possible. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80, Ferris/Seminoe/Shirley Mountains, Shirley Basin, Central Carbon County, Southwest Carbon County, and Upper North Platte River Basin. * WHEN...From late Monday night through Tuesday evening. * 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): | Ferris/Seminoe/Shirley Mountains; Central Carbon County |
| Effective: | 2026-02-15 @ 1:25 pm -> 2026-02-17 @ 9:00 pm |
| Onset: | 2026-02-16 @ 6:00 pm -> 2026-02-16 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 1:25 pm |
| Headline: | High Wind Watch issued February 15 at 12:25PM MST until February 17 at 8:00PM MST by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...Central Carbon County and Ferris/Seminoe/Shirley Mountains. * WHEN...From Monday afternoon through Tuesday evening. * 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; Central Laramie County |
| Effective: | 2026-02-15 @ 1:25 pm -> 2026-02-18 @ 12:00 am |
| Onset: | 2026-02-17 @ 6:00 am -> 2026-02-16 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 1:25 pm |
| Headline: | High Wind Watch issued February 15 at 12:25PM MST until February 17 at 11:00PM MST by NWS Cheyenne WY |
| Description: |
* WHAT...West winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie, and Central Laramie County. * WHEN...From late Monday night through Tuesday evening. * 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; Central Laramie Range and Southwest Platte County; East Platte County; Laramie Valley |
| Effective: | 2026-02-15 @ 1:25 pm -> 2026-02-18 @ 12:00 am |
| Onset: | 2026-02-17 @ 6:00 am -> 2026-02-16 @ 6:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 1:25 pm |
| Headline: | High Wind Watch issued February 15 at 12:25PM MST until February 17 at 11:00PM MST by NWS Cheyenne WY |
| Description: |
* WHAT...Southwest winds 35 to 50 mph with gusts around 70 mph possible. * WHERE...Bordeaux area along Interstate 25 between Chugwater and Wheatland, Converse County Lower Elevations, East Platte County, and Laramie Valley. * WHEN...From late Monday night through Tuesday evening. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers. |
| Alert: | Winter Storm Watch |
| Area(s): | Sierra Madre Range; Snowy Range |
| Effective: | 2026-02-15 @ 1:03 pm -> 2026-02-19 @ 6:00 am |
| Onset: | 2026-02-17 @ 6:00 am -> 2026-02-16 @ 6:15 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 1:03 pm |
| Headline: | Winter Storm Watch issued February 15 at 12:03PM MST until February 19 at 5:00AM MST by NWS Cheyenne WY |
| Description: |
* WHAT...Heavy snow possible. Total snow accumulations between 12 and 18 inches. Winds could gust as high as 60 mph. * WHERE...Sierra Madre Range and Snowy Range. * WHEN...From late Monday night through late Wednesday night. * IMPACTS...Poor visibility expected in falling and blowing snow. Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly. |
| Alert: | Winter Weather Advisory |
| Area(s): | Yellowstone National Park |
| Effective: | 2026-02-15 @ 11:43 am -> 2026-02-17 @ 6:00 pm |
| Onset: | 2026-02-17 @ 12:00 am -> 2026-02-16 @ 8:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-02-15 @ 11:43 am |
| Headline: | Winter Weather Advisory issued February 15 at 10:43AM MST until February 17 at 5:00PM MST by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 3 and 6 inches across much of the area, with higher amounts 7 to 11 inches over Pitchstone Plateau of southwest Yellowstone. Accumulations up to 2 inches around Mammoth. Winds gusting as high as 45 mph. * WHERE...Yellowstone National Park. * WHEN...From 11 PM Monday to 5 PM MST Tuesday. * IMPACTS...Backcountry travel will be difficult. |
| Alert: | Winter Weather Advisory |
| Area(s): | Teton and Gros Ventre Mountains; Wind River Mountains West; Salt River and Wyoming Ranges |
| Effective: | 2026-02-15 @ 11:43 am -> 2026-02-17 @ 6:00 pm |
| Onset: | 2026-02-17 @ 12:00 am -> 2026-02-16 @ 8:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-02-15 @ 11:43 am |
| Headline: | Winter Weather Advisory issued February 15 at 10:43AM MST until February 17 at 5:00PM MST by NWS Riverton WY |
| Description: |
* WHAT...Snow expected. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 55 mph. * WHERE...Wind River Mountains West, Teton and Gros Ventre Mountains, and Salt River and Wyoming Ranges. * WHEN...From 11 PM Monday to 5 PM MST Tuesday. * IMPACTS...Travel could be difficult due to a combination of falling snow and gusty winds. The hazardous conditions could impact the Tuesday morning and evening commutes, especially for mountain passes like Teton, Togwotee, and South Passes. * ADDITIONAL DETAILS...Snow accumulations 5 to 8 inches for Teton Pass, 4 to 7 inches for Togwotee Pass, and 2 to 5 inches for South Pass. |
| Alert: | High Wind Watch |
| Area(s): | Green Mountains and Rattlesnake Range; Natrona County Lower Elevations; East Sweetwater County |
| Effective: | 2026-02-15 @ 11:34 am -> 2026-02-17 @ 8:00 pm |
| Onset: | 2026-02-17 @ 12:00 am -> 2026-02-16 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-02-15 @ 11:34 am |
| Headline: | High Wind Watch issued February 15 at 10:34AM MST until February 17 at 7:00PM MST by NWS Riverton WY |
| Description: |
* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph possible. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, and East Sweetwater County. * WHEN...From Monday evening through Tuesday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high profile vehicles. |
| Alert: | Red Flag Warning |
| Area(s): | Natrona County/Casper BLM; Johnson County/Casper BLM |
| Effective: | 2026-02-15 @ 11:31 am -> 2026-02-16 @ 6:00 pm |
| Onset: | 2026-02-15 @ 12:00 pm -> 2026-02-16 @ 8:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-02-15 @ 11:31 am |
| Headline: | Red Flag Warning issued February 15 at 10:31AM MST until February 16 at 5:00PM MST 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....280. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Natrona. In North Central WY...Johnson. * WIND: For Sunday, southwest 15 to 25 mph with gusts up to 40 mph. Winds decrease Sunday night. Winds increase Monday morning, with southwest wind 15 to 25 mph with gusts up to 40 mph. * HUMIDITY: For Sunday, as low as 17 percent with isolated areas to 15 percent. RHs improve Sunday night, reaching 50 to 60 percent. For Monday, as low as 18 percent. * TEMPERATURES: Highs in the upper 50s. Lows around 30. |
| 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; 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: | 2026-02-15 @ 10:36 am -> 2026-02-15 @ 6:00 pm |
| Onset: | 2026-02-15 @ 12:00 pm -> 2026-02-15 @ 6:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Cheyenne WY on 2026-02-15 @ 10:36 am |
| Headline: | Red Flag Warning issued February 15 at 9:36AM MST until February 15 at 5:00PM MST by NWS Cheyenne WY |
| Description: |
* AFFECTED AREA...Fire weather zones 417, 418, 428, 429, 430, 431, 432, 433 in Wyoming. Fire weather zones 434, 435, 436, 437 in western Nebraska. * WIND...West to southwest winds at 15 to 20 MPH with gusts up to 35 MPH. * HUMIDITY...12 to 17 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. |