Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Special Weather Statement |
| Area(s): | Powder River; Sheridan Foothills |
| Effective: | 2026-06-20 @ 8:15 pm -> 2026-06-20 @ 9:00 pm |
| Onset: | 2026-06-20 @ 8:15 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Billings MT on 2026-06-20 @ 8:15 pm |
| Headline: | Special Weather Statement issued June 20 at 7:15PM MDT by NWS Billings MT |
| Description: |
At 715 PM MDT, Doppler radar was tracking strong thunderstorms 42 miles southwest of Biddle, or 42 miles east of Sheridan, moving east at 10 mph. HAZARD...Wind gusts up to 50 mph, half inch size hail, and heavy rain. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Moorhead, Arvada and Leiter. |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-06-20 @ 3:53 pm -> 2026-06-21 @ 4:00 am |
| Onset: | 2026-06-20 @ 3:53 pm -> 2026-06-21 @ 4:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-20 @ 3:53 pm |
| Headline: | Lake Wind Advisory issued June 20 at 2:53PM MDT until June 21 at 3:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...East winds 10 to 20 mph with gusts up to 35 mph, with strongest winds near the dam. * WHERE...Fort Peck Lake. * WHEN...Until 3 AM MDT Sunday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Wave heights up to 3 feet are expected. |