Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-08-15 @ 3:08 pm -> 2026-08-15 @ 3:45 pm |
| Onset: | 2026-08-15 @ 3:08 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-15 @ 3:08 pm |
| Headline: | Special Weather Statement issued August 15 at 2:08PM MDT by NWS Riverton WY |
| Description: |
At 207 PM MDT, Doppler radar was tracking a strong thunderstorm near Goldeneye Reservoir, which is 18 miles northwest of Casper, moving east at 15 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of central Natrona County, including the following locations... Casper-Natrona County International Airport. |
| Alert: | Severe Thunderstorm Watch |
| Area(s): | Banner, NE; Box Butte, NE; Cheyenne, NE; Dawes, NE; Kimball, NE; Morrill, NE; Scotts Bluff, NE; Sioux, NE; Goshen, WY; Laramie, WY; Niobrara, WY; Platte, WY |
| Effective: | 2026-08-15 @ 3:04 pm -> 2026-08-15 @ 10:00 pm |
| Onset: | 2026-08-15 @ 3:05 pm -> 2026-08-15 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-08-15 @ 3:04 pm |
| Headline: | Severe Thunderstorm Watch issued August 15 at 2:04PM MDT until August 15 at 9:00PM MDT by NWS Cheyenne WY |
| Description: |
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 584 IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN NEBRASKA THIS WATCH INCLUDES 8 COUNTIES IN PANHANDLE NEBRASKA BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SCOTTS BLUFF SIOUX IN WYOMING THIS WATCH INCLUDES 4 COUNTIES IN EAST CENTRAL WYOMING NIOBRARA IN SOUTHEAST WYOMING GOSHEN LARAMIE PLATTE THIS INCLUDES THE CITIES OF AGATE, ALLIANCE, ANGORA, BAYARD, BORDEAUX, BRIDGEPORT, BROWNSON, CHADRON, CHADRON ST PARK, CHEYENNE, GERING, GUERNSEY, HARRISBURG, HARRISON, HEMINGFORD, KIMBALL, LUSK, REDBIRD, REDINGTON, SCOTTSBLUFF, SIDNEY, TORRINGTON, AND WHEATLAND. |
| Alert: | Special Weather Statement |
| Area(s): | Teton and Gros Ventre Mountains; Jackson Hole; Star Valley; Salt River and Wyoming Ranges |
| Effective: | 2026-08-15 @ 2:46 pm -> 2026-08-15 @ 3:15 pm |
| Onset: | 2026-08-15 @ 2:46 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-15 @ 2:46 pm |
| Headline: | Special Weather Statement issued August 15 at 1:46PM MDT by NWS Riverton WY |
| Description: |
At 146 PM MDT, Doppler radar was tracking a strong thunderstorm over Alpine, moving east at 15 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. This strong thunderstorm will be near... Alpine around 150 PM MDT. |
| Alert: | Flood Watch |
| Area(s): | Dawes; Box Butte; Scotts Bluff; Banner; Morrill; Kimball; Cheyenne; North Sioux; South Sioux; Niobrara County; East Platte County; Goshen County; South Laramie Range Foothills; Central Laramie County; East Laramie County |
| Effective: | 2026-08-15 @ 1:23 pm -> 2026-08-15 @ 11:00 pm |
| Onset: | 2026-08-15 @ 3:00 pm -> 2026-08-15 @ 11:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-08-15 @ 1:23 pm |
| Headline: | Flood Watch issued August 15 at 12:23PM MDT until August 15 at 10:00PM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Localized flash flooding caused by excessive thunderstorm rainfall is possible. * WHERE...Portions of panhandle Nebraska, including the following areas, Banner County, Box Butte County, Cheyenne County, Dawes County, Kimball County, Morrill County, Northern Sioux County, Scotts Bluff County and Southern Sioux County and Wyoming, including the following areas, Central Laramie County, East Laramie County, East Platte County, Goshen County, Niobrara County and South Laramie Range Foothills. * WHEN...Until 10 PM MDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Strong, slow moving thunderstorms with locally heavy rainfall will be possible this afternoon and evening. Heavy rainfall may affect areas that received heavy rainfall and localized flooding yesterday. - http://www.weather.gov/safety/flood |