Hail in Missoula County, Montana
Hail July 31, 2025 · Missoula County, Montana
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
A slow-moving thunderstorm impacted the area northwest of Missoula, producing both large hail and heavy, localized rainfall. Quarter-sized (1.00 inch) hail was estimated via photos near the Frenchtown Mill. The storm's torrential downpour resulted in an official measurement of 0.92 inches at the Missoula International Airport (KMSO), with radar estimating up to 1.40 inches nearby. This intense rainfall overwhelmed drainage systems on Broadway, causing water to flood the eastbound lane. A downed tree was reported on the northbound lane of Highway 83 near milepost 31, north of Summit Lake.
The wider storm
Slow-moving thunderstorms, enhanced by anomalously high atmospheric moisture, brought periods of heavy rain and large hail to portions of west-central and southwest Montana.
Began near Grass Vly (46.9744, -114.2108).
Source: NOAA Storm Events Database, event 1286108. Narratives are written by the National Weather Service forecast office that issued the report.
Tornadoes near your address
See every tornado that passed near a place you know, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.