Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Flood Watch |
| Area(s): | West Glacier Region; Flathead/Mission Valleys; Potomac/Seeley Lake Region |
| Effective: | 2026-09-08 @ 6:10 am -> 2026-09-08 @ 1:00 pm |
| Onset: | 2026-09-08 @ 6:10 am -> 2026-09-08 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Missoula MT on 2026-09-08 @ 6:10 am |
| Headline: | Flood Watch issued September 8 at 5:10AM MDT until September 8 at 12:00PM MDT by NWS Missoula MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Montana, including the following areas, in northwest Montana, Flathead/Mission Valleys and West Glacier Region. In west central Montana, Potomac/Seeley Lake Region. * WHEN...Until noon MDT today. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Light to moderate rain is expected across northwest Montana this morning. - https://www.weather.gov/mso/hydrology |
| Alert: | Flood Watch |
| Area(s): | East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton |
| Effective: | 2026-09-08 @ 6:10 am -> 2026-09-08 @ 1:00 pm |
| Onset: | 2026-09-08 @ 6:10 am -> 2026-09-08 @ 1:00 pm |
| Severity: | Severe |
| Certainty: | Possible |
| Urgency: | Future |
| Issued By: | NWS Great Falls MT on 2026-09-08 @ 6:10 am |
| Headline: | Flood Watch issued September 8 at 5:10AM MDT until September 8 at 12:00PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of north central Montana, including the following areas, East Glacier Park Region, Eastern Glacier, Western Toole, and Central Pondera, Eastern Pondera and Eastern Teton, Eastern Toole and Liberty, Northern High Plains, Southern High Plains and Southern Rocky Mountain Front. * WHEN...Until noon MDT today. * IMPACTS...Excessive runoff may result in minor flooding of creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage areas. Rural gravel and dirt roads can become muddy and may become difficult to travel. Rock/debris slides are possible in the mountains. * ADDITIONAL DETAILS... - Periods of rain through this morning could result in minor flooding. - http://www.weather.gov/safety/flood |
| Alert: | High Wind Warning |
| Area(s): | Southwest Phillips |
| Effective: | 2026-09-07 @ 7:29 pm -> 2026-09-08 @ 10:00 am |
| Onset: | 2026-09-07 @ 7:29 pm -> 2026-09-08 @ 10:00 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-09-07 @ 7:29 pm |
| Headline: | High Wind Warning issued September 7 at 6:29PM MDT until September 8 at 9:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...West winds 25 to 40 mph with gusts up to 60 mph. * WHERE...Southwest Phillips County. * WHEN...Until 9 AM MDT Tuesday. * IMPACTS...Damaging winds could blow down trees and power lines. Travel could be difficult, especially for high profile vehicles on US 191. |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-09-07 @ 7:29 pm -> 2026-09-08 @ 10:00 am |
| Onset: | 2026-09-07 @ 7:29 pm -> 2026-09-09 @ 1:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-09-07 @ 7:29 pm |
| Headline: | Lake Wind Advisory issued September 7 at 6:29PM MDT until September 9 at 12:00AM MDT by NWS Glasgow MT |
| Description: |
* WHAT...West winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Fort Peck Lake. * WHEN...Until midnight MDT Tuesday Night. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Waves up to 5 feet are expected on Fort Peck Lake tonight and Tuesday. |
