Headline:
Severe Thunderstorm Warning issued July 17 at 6:58PM MDT until July 17 at 7:30PM MDT by NWS Great Falls MT
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
July 17, 2026 - 5:58pm
Expires:
July 17, 2026 - 6:30pm
Description:
SVRTFX
The National Weather Service in Great Falls has issued a
* Severe Thunderstorm Warning for...
Southeastern Teton County in north central Montana...
Southwestern Chouteau County in north central Montana...
Northwestern Cascade County in central Montana...
* Until 730 PM MDT.
* At 657 PM MDT, severe thunderstorms were located along a line
extending from near Fort Shaw to 8 miles southeast of Great Falls,
moving north at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated. At 650PM, a 56 mph wind gust and pea
sized hail was reported 5 miles south of Great Falls.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Great Falls, Black Eagle, Fort Shaw, Malmstrom Afb, Stockett,
Tracy, Vaughn, First Peoples Buffalo Jump State Park, Centerville,
Sun River, Ulm, Sand Coulee, and Simms.
Instruction:
For your protection move to an interior room on the lowest floor of a
building.
Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
Area Description:
Cascade, MT; Chouteau, MT; Teton, MT
Forcast Office:
NWS Great Falls MT
Sender: