Cheyenne, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Yellowstone National Park; Teton and Gros Ventre Mountains |
| Effective: | 2026-08-22 @ 9:23 pm -> 2026-08-22 @ 10:15 pm |
| Onset: | 2026-08-22 @ 9:23 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-22 @ 9:23 pm |
| Headline: | Special Weather Statement issued August 22 at 8:23PM MDT by NWS Riverton WY |
| Description: |
At 823 PM MDT, Doppler radar was tracking a strong thunderstorm near Drummond, which is 8 miles north of Felt, moving east at 30 mph. HAZARD...Wind gusts up to 50 mph and nickel 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 storm will remain over mainly rural areas of west central Teton County. |
| Alert: | Special Weather Statement |
| Area(s): | Natrona County Lower Elevations |
| Effective: | 2026-08-22 @ 8:52 pm -> 2026-08-22 @ 9:45 pm |
| Onset: | 2026-08-22 @ 8:52 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-22 @ 8:52 pm |
| Headline: | Special Weather Statement issued August 22 at 7:52PM MDT by NWS Riverton WY |
| Description: |
At 751 PM MDT, Doppler radar was tracking a strong thunderstorm near Midwest, which is 28 miles southeast of Kaycee, moving southeast at 10 mph. HAZARD...Wind gusts of 50 to 55 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... Midwest around 755 PM MDT. This includes Interstate 25 between mile markers 217 and 226. |
| Alert: | Flood Advisory |
| Area(s): | Johnson, WY |
| Effective: | 2026-08-22 @ 7:32 pm -> 2026-08-22 @ 10:30 pm |
| Onset: | 2026-08-22 @ 7:32 pm -> 2026-08-22 @ 10:30 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-22 @ 7:32 pm |
| Headline: | Flood Advisory issued August 22 at 6:32PM MDT until August 22 at 9:30PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...East Central Johnson County in north central Wyoming... * WHEN...Until 930 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 629 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1.5 and 2.5 inches of rain have fallen. - This includes the following streams and drainages... South Fork Fourmile Creek, Cat Creek, Timber Draw, Red Draw, Crazy Woman Creek, Powder River, Walker Draw, Curtis Draw, Horse Creek, Indian Creek, North Fork Fourmile Creek, Fourmile Creek, Ninemile Creek and Cow Creek. - Some locations that will experience flooding include... Mainly rural areas of East Central Johnson County. - http://www.weather.gov/safety/flood |
| Alert: | Flood Advisory |
| Area(s): | Johnson, WY |
| Effective: | 2026-08-22 @ 7:28 pm -> 2026-08-22 @ 9:45 pm |
| Onset: | 2026-08-22 @ 7:28 pm -> 2026-08-22 @ 9:45 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Riverton WY on 2026-08-22 @ 7:28 pm |
| Headline: | Flood Advisory issued August 22 at 6:28PM MDT until August 22 at 8:45PM MDT by NWS Riverton WY |
| Description: |
* WHAT...Arroyo and small stream flooding caused by excessive rainfall continues. * WHERE...Southeastern Johnson County in north central Wyoming... * WHEN...Until 845 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Water over roadways. * ADDITIONAL DETAILS... - At 624 PM MDT, WYDOT reported heavy rain in the advisory area due to thunderstorms. This is causing flooding on WY 192 between mp 10 and mp 11. Between 1 and 3 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... WY 192 between Kaycee and Sussex. - http://www.weather.gov/safety/flood |