Cheyenne, Wyoming

Regional Weather Alerts


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 @ 2:12 am -> 2026-08-15 @ 7:00 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 @ 2:12 am
Headline: Flood Watch issued August 15 at 1:12AM 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...From this afternoon through 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