Headline:
Severe Thunderstorm Warning issued September 13 at 9:39PM MDT until September 13 at 10:15PM MDT by NWS Great Falls MT
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
September 13, 2026 - 8:39pm
Expires:
September 13, 2026 - 9:15pm
Description:
At 939 PM MDT, a severe thunderstorm was located near Geyser, or 19
miles west of Stanford, moving northeast at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Geyser.
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