Headline:
Severe Thunderstorm Warning issued September 13 at 9:57PM MDT until September 13 at 10:15PM MDT by NWS Great Falls MT
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
September 13, 2026 - 8:57pm
Expires:
September 13, 2026 - 9:15pm
Description:
At 956 PM MDT, a severe thunderstorm was located 9 miles northeast of
Geyser, moving northeast at 40 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of north
central Judith Basin and south central Chouteau Counties.
Instruction:
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
Area Description:
Chouteau, MT; Judith Basin, MT
Forcast Office:
NWS Great Falls MT
Sender:
w-nws.webmaster@noaa.gov