Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Wind River Basin |
| Effective: | 2026-07-09 @ 3:58 pm -> 2026-07-09 @ 4:45 pm |
| Onset: | 2026-07-09 @ 3:58 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-07-09 @ 3:58 pm |
| Headline: | Special Weather Statement issued July 9 at 2:58PM MDT by NWS Riverton WY |
| Description: |
At 257 PM MDT, Doppler radar was tracking a strong thunderstorm near Pavillion, moving south at 25 mph. HAZARD...Wind gusts up to 50 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 strong thunderstorm will be near... Pavillion around 305 PM MDT. Ocean Lake around 310 PM MDT. Other locations in the path of this storm include Kinnear. |
| Alert: | Special Weather Statement |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-07-09 @ 3:41 pm -> 2026-07-09 @ 4:15 pm |
| Onset: | 2026-07-09 @ 3:41 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-07-09 @ 3:41 pm |
| Headline: | Special Weather Statement issued July 9 at 2:41PM MDT by NWS Riverton WY |
| Description: |
At 241 PM MDT, Doppler radar was tracking a strong thunderstorm near Antelope Hills, which is 17 miles north of Casper, moving east at 30 mph. HAZARD...Wind gusts up to 50 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 strong thunderstorm will be near... Antelope Hills around 245 PM MDT. This includes Interstate 25 between mile markers 176 and 180, and between mile markers 194 and 212. |
| Alert: | Extreme Heat Watch |
| Area(s): | Musselshell; Treasure; Northern Rosebud; Custer; Fallon; Northern Stillwater; Powder River; Carter; Northern Park; Golden Valley; Red Lodge Foothills; Northern Big Horn; Southern Rosebud; Judith Gap; Paradise Valley; Livingston Area; 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: | 2026-07-09 @ 1:31 pm -> 2026-07-10 @ 1:45 pm |
| Onset: | 2026-07-11 @ 7:00 am -> 2026-07-14 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Billings MT on 2026-07-09 @ 1:31 pm |
| Headline: | Extreme Heat Watch issued July 9 at 12:31PM MDT until July 14 at 12:00AM MDT by NWS Billings MT |
| Description: |
* WHAT...Dangerously hot conditions with temperatures of 100 to 110 possible, warmest Sunday. A few all time record high temperatures are possible. * WHERE...Portions of central, south central, and southeast Montana and north central Wyoming. * WHEN...From Saturday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Extremely hot daytime temperatures combined with warm overnight low temperatures will produce cumulative heat stress. This heat stress will quickly become dangerous to anyone without adequate cooling and hydration. |
| Alert: | Extreme Heat Watch |
| Area(s): | Cody Foothills; North Bighorn Basin; Southwest Bighorn Basin; Southeast Bighorn Basin; Northeast Johnson County; Southeast Johnson County; Jackson Hole; Upper Wind River Basin; Wind River Basin; Lander Foothills; Green Mountains and Rattlesnake Range; Natrona County Lower Elevations; Star Valley; Upper Green River Basin Foothills; Upper Green River Basin; South Lincoln County; Rock Springs and Green River; Flaming Gorge; East Sweetwater County |
| Effective: | 2026-07-09 @ 1:02 pm -> 2026-07-10 @ 9:15 am |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Riverton WY on 2026-07-09 @ 1:02 pm |
| Headline: | Extreme Heat Watch issued July 9 at 12:02PM MDT until July 13 at 9:00PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Dangerously hot conditions with temperatures 98 to 108 degrees below 6,000 feet and 90 to 100 degrees between 6,000 and 7,500 feet each day. * WHERE...Portions of central, north central, northwest, south central, southwest, and west central Wyoming. * WHEN...From Saturday afternoon through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. |
| Alert: | Extreme Heat Watch |
| Area(s): | Harding; Northern Perkins; Butte; Northern Meade Co Plains; Ziebach; Northern Foothills; Rapid City; Southern Foothills; Southern Black Hills; Custer Co Plains; Pennington Co Plains; Haakon; Western Fall River; Northern Oglala Lakota; Northern Jackson; Mellette; Sturgis/Piedmont Foothills; Southern Meade Co Plains; Hermosa Foothills; Eastern Fall River; Southern Jackson; Southern Perkins; Northern Campbell; Southern Campbell; Western Crook; Weston County Plains; Newcastle; Northeastern Crook |
| Effective: | 2026-07-09 @ 12:34 pm -> 2026-07-10 @ 3:45 am |
| Onset: | 2026-07-11 @ 1:00 pm -> 2026-07-14 @ 1:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Rapid City SD on 2026-07-09 @ 12:34 pm |
| Headline: | Extreme Heat Watch issued July 9 at 11:34AM MDT until July 14 at 12:00AM MDT by NWS Rapid City SD |
| Description: |
* WHAT...Dangerously hot conditions with heat index values ranging from 100 to 105 possible. * WHERE...Portions of northwestern, south central, southwestern, and the Black Hills of South Dakota and northeast Wyoming. * WHEN...From Saturday afternoon through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. |
| Alert: | Heat Advisory |
| Area(s): | Southwest Wyoming |
| Effective: | 2026-07-09 @ 11:55 am -> 2026-07-10 @ 4:00 am |
| Onset: | 2026-07-12 @ 1:00 pm -> 2026-07-13 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Salt Lake City UT on 2026-07-09 @ 11:55 am |
| Headline: | Heat Advisory issued July 9 at 10:55AM MDT until July 13 at 9:00PM MDT by NWS Salt Lake City UT |
| Description: |
* WHAT...Temperatures up to 98 expected. * WHERE...Southwest Wyoming. * WHEN...From noon Sunday to 9 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. |