Yellowstone National Park, Wyoming

Regional Weather Alerts


     

Alert: Special Weather Statement
Area(s): Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains
Effective: 2026-08-14 @ 5:32 pm -> 2026-08-14 @ 6:15 pm
Onset: 2026-08-14 @ 5:32 pm
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Great Falls MT on 2026-08-14 @ 5:32 pm
Headline: Special Weather Statement issued August 14 at 4:32PM MDT by NWS Great Falls MT
Description: At 432 PM MDT, Doppler radar was tracking a strong thunderstorm 19
miles northeast of Leadore, or 31 miles southwest of Dillon, moving
east at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.

Locations impacted include...
Clark Canyon and Grant.

Alert: Severe Thunderstorm Warning
Area(s): Missoula, MT; Sanders, MT
Effective: 2026-08-14 @ 5:30 pm -> 2026-08-14 @ 6:15 pm
Onset: 2026-08-14 @ 5:30 pm -> 2026-08-14 @ 6:15 pm
Severity: Severe
Certainty: Observed
Urgency: Immediate
Issued By: NWS Missoula MT on 2026-08-14 @ 5:30 pm
Headline: Severe Thunderstorm Warning issued August 14 at 4:30PM MDT until August 14 at 5:15PM MDT by NWS Missoula MT
Description: SVRMSO

The National Weather Service in Missoula has issued a

* Severe Thunderstorm Warning for...
Southeastern Sanders County in northwestern Montana...
Central Missoula County in west central Montana...

* Until 515 PM MDT.

* At 430 PM MDT, a severe thunderstorm was located 7 miles northwest
of Frenchtown, or 21 miles northwest of Missoula, moving east at 25
mph.

HAZARD...Quarter size hail. Heavy rainfall.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected. Heavy rainfall will cause
localized flooding in flood prone areas, including
debris/rock flow.

* Locations impacted include...
Frenchtown, Wye, Evaro and Huson, and portions of Interstate 90.

Alert: Flash Flood Watch
Area(s): Northwest Beaverhead County
Effective: 2026-08-14 @ 2:50 pm -> 2026-08-14 @ 10:00 pm
Onset: 2026-08-14 @ 2:50 pm -> 2026-08-14 @ 10:00 pm
Severity: Severe
Certainty: Possible
Urgency: Future
Issued By: NWS Great Falls MT on 2026-08-14 @ 2:50 pm
Headline: Flash Flood Watch issued August 14 at 1:50PM MDT until August 14 at 9:00PM MDT by NWS Great Falls MT
Description: * WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible across the Bobcat Lakes and Sand Creek burn
scars in the Pioneer Mountains

* WHERE...The Pioneer Mountain range.

* WHEN...Until 9 PM MDT this evening.

* IMPACTS...Heavy rainfall over the Pioneer Mountains is possible
during the period of the watch. Residents near the fires and burn
scars should prepare for potential debris flow. Be sure to stay up
to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, and debris flows
in and near recent wildfire burn scars.

* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- http://www.weather.gov/safety/flood