Cheyenne, Wyoming

Regional Weather Alerts


     

Alert: Flood Watch
Area(s): Absaroka Mountains; Cody Foothills; Southwest Bighorn Basin; Owl Creek and Bridger Mountains; Wind River Mountains East
Effective: 2026-07-23 @ 6:32 am -> 2026-07-23 @ 2:45 pm
Onset: 2026-07-23 @ 6:32 am -> 2026-07-23 @ 9:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Riverton WY on 2026-07-23 @ 6:32 am
Headline: Flood Watch issued July 23 at 5:32AM MDT until July 23 at 8:00PM MDT by NWS Riverton WY
Description: * WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of central and northwest Wyoming, including the
following areas, in central Wyoming, Owl Creek and Bridger
Mountains, and East Wind River Mountains. In northwest Wyoming,
Absaroka Mountains and Cody Foothills.

* WHEN...Through this evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.

* ADDITIONAL DETAILS...
- Slow moving showers and thunderstorms and abnormally high
moisture in the air can bring locally heavy rainfall on already
saturated grounds that could lead to flooding.
- http://www.weather.gov/safety/flood

Alert: Extreme Heat Watch
Area(s): Musselshell; Treasure; Northern Rosebud; Custer; Fallon; Northern Stillwater; Powder River; Carter; Golden Valley; Red Lodge Foothills; Northern Big Horn; Southern Rosebud; Judith Gap; Beartooth Foothills; Southern Big Horn; Southeastern Carbon; Northern Sweet Grass; Bighorn Canyon; Northern Carbon; Melville Foothills; Northeastern Yellowstone; Southern Wheatland; Southwestern Yellowstone; Sheridan Foothills
Effective: 2026-07-23 @ 3:37 am -> 2026-07-24 @ 3:45 am
Onset: 2026-07-24 @ 10:00 am -> 2026-07-26 @ 10:00 pm
Severity: Severe
Certainty: Likely
Urgency: Future
Issued By: NWS Billings MT on 2026-07-23 @ 3:37 am
Headline: Extreme Heat Watch issued July 23 at 2:37AM MDT until July 26 at 9:00PM MDT by NWS Billings MT
Description: * WHAT...Dangerously hot conditions with temperatures 95 to 110
possible.

* WHERE...Portions of central, south central, and southeast Montana
and north central Wyoming.

* WHEN...From Friday morning through Sunday evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

Alert: Flood Watch
Area(s): Converse County Lower Elevations; Niobrara County; North Laramie Range; Ferris/Seminoe/Shirley Mountains; Shirley Basin; Central Laramie Range and Southwest Platte County; East Platte County; Goshen County; Central Carbon County; North Snowy Range Foothills; Southwest Carbon County; Upper North Platte River Basin; Laramie Valley; South Laramie Range; South Laramie Range Foothills; Central Laramie County; East Laramie County
Effective: 2026-07-23 @ 12:58 am -> 2026-07-24 @ 1:00 am
Onset: 2026-07-23 @ 12:58 am -> 2026-07-24 @ 1:00 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Cheyenne WY on 2026-07-23 @ 12:58 am
Headline: Flood Watch issued July 22 at 11:58PM MDT until July 24 at 12:00AM MDT by NWS Cheyenne WY
Description: * WHAT...Flooding caused by localized excessive thunderstorm
rainfall continues to be possible.

* WHERE...Southeast Wyoming and the western Nebraska panhandle.

* WHEN...Through Thursday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Localized torrential rainfall in scattered thunderstorm
activity combined with the potential for training
thunderstorms continues to have the potential to produce
flooding.
- http://www.weather.gov/safety/flood

Alert: Flood Watch
Area(s): Sierra Madre Range; Snowy Range
Effective: 2026-07-23 @ 12:58 am -> 2026-07-24 @ 1:00 am
Onset: 2026-07-23 @ 12:58 am -> 2026-07-24 @ 1:00 am
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Cheyenne WY on 2026-07-23 @ 12:58 am
Headline: Flood Watch issued July 22 at 11:58PM MDT until July 24 at 12:00AM MDT by NWS Cheyenne WY
Description: * WHAT...Flooding caused by localized excessive thunderstorm
rainfall continues to be possible.

* WHERE...Southeast Wyoming and the western Nebraska panhandle.

* WHEN...Through Thursday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Localized torrential rainfall in scattered thunderstorm
activity combined with the potential for training
thunderstorms continues to have the potential to produce
flooding.
- http://www.weather.gov/safety/flood