Yellowstone National Park, Wyoming
Regional Weather Alerts
| Alert: | Flood Warning |
| Area(s): | Glacier, MT; Pondera, MT |
| Effective: | 2026-06-30 @ 3:42 pm -> 2026-06-30 @ 6:15 pm |
| Onset: | 2026-06-30 @ 3:42 pm -> 2026-06-30 @ 6:15 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-30 @ 3:42 pm |
| Headline: | Flood Warning issued June 30 at 2:42PM MDT until June 30 at 5:15PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by rain and snowmelt continues. * WHERE...Western Glacier County in north central Montana... West Central Pondera County in north central Montana... * WHEN...Until 515 PM MDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 240 PM MDT, Satellite estimates and rain gauge data indicate heavy rain and snowmelt from thunderstorms in the warned area. Flooding is ongoing or expected to begin shortly. Between 2 and 4 inches of rain have fallen. - Additional rainfall amounts up to 0.5 inch are possible in the warned area. - Some locations that will experience flooding include... Kiowa, East Glacier Park, East Glacier Park Village, Saint Mary, Babb, Many Glacier, Marias Pass and Goat Haunt. |
| Alert: | Flood Warning |
| Area(s): | Glacier, MT; Pondera, MT |
| Effective: | 2026-06-30 @ 3:40 pm -> 2026-06-30 @ 5:45 pm |
| Onset: | 2026-06-30 @ 3:40 pm -> 2026-06-30 @ 5:45 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-30 @ 3:40 pm |
| Headline: | Flood Warning issued June 30 at 2:40PM MDT until June 30 at 4:45PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Southern Glacier County in north central Montana... Northwestern Pondera County in north central Montana... * WHEN...Until 445 PM MDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 238 PM MDT, Gauge reports indicated ongoing flooding at Badger Creek below Four Horns Canal. Flooding is already occurring in the warned area. - This includes the following streams and drainages... Badger Creek, North Fork Whitetail Creek and Whitetail Creek. Additional rainfall amounts up to 0.5 inches are possible in the warned area. - Some locations that will experience flooding include... Mainly rural areas of Southern Glacier and Northwestern Pondera Counties. |
| Alert: | Special Weather Statement |
| Area(s): | Eastern Toole and Liberty; Hill County |
| Effective: | 2026-06-30 @ 3:39 pm -> 2026-06-30 @ 4:30 pm |
| Onset: | 2026-06-30 @ 3:39 pm |
| Severity: | Moderate |
| Certainty: | Observed |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-30 @ 3:39 pm |
| Headline: | Special Weather Statement issued June 30 at 2:39PM MDT by NWS Great Falls MT |
| Description: |
At 238 PM MDT, Doppler radar was tracking a strong thunderstorm near Chester, moving east at 30 mph. HAZARD...Wind gusts up to 40 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. Locations impacted include... Chester. |
| Alert: | Flood Warning |
| Area(s): | Glacier, MT |
| Effective: | 2026-06-30 @ 3:37 pm -> 2026-06-30 @ 5:45 pm |
| Onset: | 2026-06-30 @ 3:37 pm -> 2026-06-30 @ 5:45 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-30 @ 3:37 pm |
| Headline: | Flood Warning issued June 30 at 2:37PM MDT until June 30 at 4:45PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Areas along Swiftcurrent Creek near Many Glacier in Glacier National Park. * WHEN...Until 445 PM MDT. * IMPACTS...Flooding and elevated flow of creeks and streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 236 PM MDT, Recent heavy rainfall has resulted in elevated flows on creeks and streams including Swiftcurrent Creek near Many Glacier. Additional precipitation is possible through Tuesday afternoon. - Creek levels are expected to slowly diminish towards the evening. - Some locations that will experience flooding include... Kiowa, East Glacier Park, East Glacier Park Village, the entire east side of Glacier National Park, Saint Mary, Babb, Many Glacier, Marias Pass and Goat Haunt. |
| Alert: | Lake Wind Advisory |
| Area(s): | Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone |
| Effective: | 2026-06-30 @ 6:32 am -> 2026-06-30 @ 9:00 pm |
| Onset: | 2026-06-30 @ 7:00 am -> 2026-06-30 @ 9:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Glasgow MT on 2026-06-30 @ 6:32 am |
| Headline: | Lake Wind Advisory issued June 30 at 5:32AM MDT until June 30 at 8:00PM MDT by NWS Glasgow MT |
| Description: |
* WHAT...West winds 10 to 20 mph with gusts up to 35 mph expected. * WHERE...Fort Peck Lake. * WHEN...Until 8 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Waves up to 4 feet are expected. |
| Alert: | Flood Advisory |
| Area(s): | Glacier, MT; Pondera, MT |
| Effective: | 2026-06-29 @ 4:50 pm -> 2026-06-30 @ 4:45 pm |
| Onset: | 2026-06-29 @ 4:50 pm -> 2026-06-30 @ 4:45 pm |
| Severity: | Minor |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Great Falls MT on 2026-06-29 @ 4:50 pm |
| Headline: | Flood Advisory issued June 29 at 3:50PM MDT until June 30 at 3:45PM MDT by NWS Great Falls MT |
| Description: |
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Southern Glacier County in north central Montana... Northwestern Pondera County in north central Montana... * WHEN...Until 345 PM MDT Tuesday. * IMPACTS...River or stream flows are elevated. * ADDITIONAL DETAILS... - At 348 PM MDT, gauge reports indicated heavy rain was causing Badger Creek to rise rapidly. Minor flooding along Badger Creek is likely to begin shortly. - This includes the following streams and drainages... Whitetail Creek, North Fork Whitetail Creek and Badger Creek. 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... Mainly rural areas of Southern Glacier and Northwestern Pondera Counties. - http://www.weather.gov/safety/flood |