A severe thunderstorm developed right over Great Falls on Thursday evening (July 31, 2025).
WATCH THE VIDEO:
Flash Flooding In Great Falls (July 31, 2025)
Hail up to 1" in diameter fell in parts of the city.
Torrential rain accompanied this thunderstorm as well leading to flash flooding in portions of the Electric City, especially downtown.
A Flash Flood Warning remains in effect for Great Falls until 12:15am on Friday.
If you see a flooded road, make sure you turn around. Do not attempt to drive through it as a car can float away in just 12" of water. If possible, just remain home tonight.
If you have any photos or videos of the flooding, you can send them to weather@krtv.com.
Storms also hit other parts of Montana - even spawning a landspout tornado near Townsend:
Small tornado near Townsend