Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Flood Watch |
| Area(s): | Red Lodge Foothills; Paradise Valley; Livingston Area; Beartooth Foothills; Absaroka/Beartooth Mountains; Southern Big Horn; Southeastern Carbon; Bighorn Canyon; Northern Carbon; Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains; Sheridan Foothills |
| Effective: | 2026-07-22 @ 9:07 am -> 2026-07-23 @ 3:00 am |
| Onset: | 2026-07-22 @ 2:00 pm -> 2026-07-23 @ 3:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-07-22 @ 9:07 am |
| Headline: | Flood Watch issued July 22 at 8:07AM MDT until July 23 at 2:00AM MDT by NWS Billings MT |
| Description: |
The combination of a moist and unstable air mass with slow moving thunderstorms capable of producing very heavy rain, will bring a risk of flash flooding Wednesday afternoon and evening. * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of south central Montana, including the following areas, Absaroka/Beartooth Mountains, Beartooth Foothills, Bighorn Canyon, Livingston Area, Northern Carbon, Paradise Valley, Pryor/Northern Bighorn Mountains, Red Lodge Foothills, Southeastern Carbon and Southern Big Horn and north central Wyoming, including the following areas, Northeast Bighorn Mountains and Sheridan Foothills. * WHEN...From 1 PM MDT this afternoon through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, streams, and other low-lying and flood-prone locations. Recent burn scars, including the Robertson Draw and East Side south of Red Lodge, and the Elk along the eastern slopes of the Bighorn Mountains, are at risk of experiencing flash flooding and debris flows. * ADDITIONAL DETAILS... - Thunderstorms capable of producing very heavy rain are expected this afternoon and evening. These storms may cause localized flash flooding. Expect storms to begin developing over the mountains by 1 or 2 pm. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Cache Valley/Utah Portion; Wasatch Back; Bear Lake and Bear River Valley; Wasatch Mountains I-80 North; Wasatch Mountains South of I-80; Western Uinta Mountains; Wasatch Plateau/Book Cliffs; Western Uinta Basin; Eastern Juab/Millard Counties; Central Mountains; Sanpete Valley; Sevier Valley; Castle Country; San Rafael Swell; Southwest Utah; Lower Washington County; Zion National Park; Southern Mountains; Upper Sevier River Valleys; Bryce Canyon Country; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell; Southwest Wyoming |
| Effective: | 2026-07-22 @ 8:50 am -> 2026-07-23 @ 12:00 am |
| Onset: | 2026-07-22 @ 1:00 pm -> 2026-07-23 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Salt Lake City UT on 2026-07-22 @ 8:50 am |
| Headline: | Flood Watch issued July 22 at 7:50AM MDT until July 23 at 12:00AM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Utah, including the following areas, Bear Lake and Bear River Valley, Bryce Canyon Country, Cache Valley/Utah Portion, Capitol Reef National Park and Vicinity, Castle Country, Central Mountains, Eastern Juab/Millard Counties, Glen Canyon Recreation Area/Lake Powell, Lower Washington County, San Rafael Swell, Sanpete Valley, Sevier Valley, South Central Utah, Southern Mountains, Southwest Utah, Upper Sevier River Valleys, Wasatch Back, Wasatch Mountains I-80 North, Wasatch Mountains South of I-80, Wasatch Plateau/Book Cliffs, Western Canyonlands, Western Uinta Basin, Western Uinta Mountains and Zion National Park and Wyoming, including the following area, Southwest Wyoming. This also includes recent burn scars such as Cottonwood, Silver King, Monroe Canyon, France Canyon, and Forsyth. * WHEN...From noon MDT today through this evening. * IMPACTS...Excessive rainfall may result in flooding of slot canyons, normally dry washes, slick rock areas, rivers, creeks, streams, recent burn scars including Forsyth, France Canyon, Cottonwood, Silver King, and Monroe Canyon, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood |
| 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: | 2026-07-22 @ 8:44 am -> 2026-07-23 @ 1:00 am |
| Onset: | 2026-07-22 @ 1:00 pm -> 2026-07-24 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Cheyenne WY on 2026-07-22 @ 8:44 am |
| Headline: | Flood Watch issued July 22 at 7:44AM MDT until July 24 at 12:00AM MDT by NWS Cheyenne WY |
| Description: |
* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of east central, south central, and southeast Wyoming, including the following areas, in east central Wyoming, Converse County Lower Elevations and Niobrara County. In south central Wyoming, Central Carbon County, Ferris/Seminoe/Shirley Mountains, North Snowy Range Foothills, Shirley Basin, Southwest Carbon County and Upper North Platte River Basin. In southeast Wyoming, Central Laramie County, Central Laramie Range and Southwest Platte County, East Laramie County, East Platte County, Goshen County, Laramie Valley, North Laramie Range, South Laramie Range and South Laramie Range Foothills. * WHEN...From noon MDT today through Thursday 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. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Torrential Rainfall combined with training Thunderstorms may lead to rises in creeks, flood low lying areas, and temporarily overwhelm drainage areas due to excessive run off from Hydrophobic soils. - http://www.weather.gov/safety/flood |
| Alert: | Flood Watch |
| Area(s): | Yellowstone National Park; Absaroka Mountains; Cody Foothills; North Bighorn Basin; Southwest Bighorn Basin; Southeast Bighorn Basin; Owl Creek and Bridger Mountains; Bighorn Mountains West; Bighorn Mountains Southeast; Northeast Johnson County; Southeast Johnson County; Teton and Gros Ventre Mountains; Jackson Hole; Wind River Mountains West; Wind River Mountains East; Upper Wind River Basin; Wind River Basin; Lander Foothills; Green Mountains and Rattlesnake Range; Natrona County Lower Elevations; Casper Mountain; Star Valley; Salt River and Wyoming Ranges; Upper Green River Basin Foothills; Upper Green River Basin; South Lincoln County; Rock Springs and Green River; Flaming Gorge; East Sweetwater County |
| Effective: | 2026-07-22 @ 2:48 am -> 2026-07-22 @ 7:00 pm |
| Onset: | 2026-07-22 @ 2:48 am -> 2026-07-23 @ 7:00 am |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-07-22 @ 2:48 am |
| Headline: | Flood Watch issued July 22 at 1:48AM MDT until July 23 at 6:00AM MDT by NWS Riverton WY |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, north central, northwest, south central, southwest, and west central Wyoming, including the following areas, in central Wyoming, Casper Mountain, Green Mountains and Rattlesnake Range, Lander Foothills, Natrona County Lower Elevations, Owl Creek and Bridger Mountains, Southwest Bighorn Basin, Upper Wind River Basin, Wind River Basin, Wind River Mountains East and Wind River Mountains West. In north central Wyoming, Bighorn Mountains Southeast, Bighorn Mountains West, Northeast Johnson County, Southeast Bighorn Basin and Southeast Johnson County. In northwest Wyoming, Absaroka Mountains, Cody Foothills, Jackson Hole, North Bighorn Basin, Teton and Gros Ventre Mountains and Yellowstone National Park. In south central Wyoming, East Sweetwater County, Flaming Gorge and Rock Springs and Green River. In southwest Wyoming, South Lincoln County. In west central Wyoming, Salt River and Wyoming Ranges, Star Valley, Upper Green River Basin and Upper Green River Basin Foothills. * WHEN...Until late Wednesday night. The most likely period of possible flooding is this afternoon through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Slow moving showers and thunderstorms and abnormally high moisture in the air can bring locally heavy rainfall that could lead to flooding. - http://www.weather.gov/safety/flood |