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NWS Billings MTSV.W 0146September 2, 2026

Severe Thunderstorm Warning: Custer and Fallon, MT

The National Weather Service office in Billings issued a severe thunderstorm warning for Custer and Fallon in Montana, which was in force until 7:45 p.m. local time on September 2. It was the 146th severe thunderstorm warning the NWS office in Billings 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

Issued6:46 p.m. MDT, September 2, 2026
In force6:46 p.m. MDT, September 2, 2026
Expired7:45 p.m. MDT, September 2, 2026

In force for 59 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Billings MT
Area
Custer and Fallon
State
Montana
Level
Warning
Issued
6:46 p.m. MDT, September 2, 2026
Expires
7:45 p.m. MDT, September 2, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KBYZ SV.W 0146
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

SVRBYZ The National Weather Service in Billings has issued a * Severe Thunderstorm Warning for... East Central Custer County in southeastern Montana... Northwestern Fallon County in southeastern Montana... * Until 745 PM MDT. * At 646 PM MDT, a severe thunderstorm was located 41 miles northwest of Ekalaka, or 35 miles east of Miles City, moving east at 15 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Ismay, Knowlton, Westmore and Mizpah.

What the agency told people to do

Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

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