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NWS Great Falls MTSV.W 0124September 6, 2026

Severe Thunderstorm Warning: Chouteau and Fergus, MT

The National Weather Service office in Great Falls issued a severe thunderstorm warning for Chouteau and Fergus in Montana, which was in force until 8:00 p.m. local time on September 6. It was the 124th severe thunderstorm warning the NWS office in Great Falls issued in 2026. Montana had 61 severe thunderstorm warnings in September 2026, against 10 in an average September of 2008-2025 (Montana's severe thunderstorm warnings by year).

ExpiredWarning

Issued7:10 p.m. MDT, September 6, 2026
In force7:10 p.m. MDT, September 6, 2026
Expired8:00 p.m. MDT, September 6, 2026

In force for 50 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Great Falls MT
Area
Chouteau and Fergus
State
Montana
Level
Warning
Issued
7:10 p.m. MDT, September 6, 2026
Expires
8:00 p.m. MDT, September 6, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KTFX SV.W 0124
Official source
National Weather Service: the notice at its source

Severe Thunderstorm Warnings in Montana since 2008Every warning type in Montana

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SVRTFX The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Northern Fergus County in central Montana... Southeastern Chouteau County in north central Montana... * Until 800 PM MDT. * At 709 PM MDT, a severe thunderstorm was located near Geraldine, or 29 miles southeast of Fort Benton, moving northeast at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Geraldine and Iliad.

What the agency told people to do

For your protection move to an interior room on the lowest floor of a building. Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice