The National Weather Service has issued a Severe Thunderstorm Watch from 2:45 p.m. until 9:00 p.m. Thursday for much of southwest Montana.

Penny size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...

Townsend, Boulder, Three Forks, Manhattan, Toston, Elkhorn State
Park, Missouri Headwaters State Park, Logan, Winston, Radersburg,
Maudlow, Silos, Trident, Willow Creek, Menard and Madison Buffalo
Jump State Park.

Torrential rainfall is possible with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

If on or near Canyon Ferry Lake, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
10 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.