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NWS Glasgow MTSV.W 0022May 29, 2026

Severe Thunderstorm Warning: Garfield and Petroleum, MT

The National Weather Service office in Glasgow issued a severe thunderstorm warning for Garfield and Petroleum in Montana, which was in force until 7:15 p.m. local time on May 29. It was the 22nd severe thunderstorm warning the NWS office in Glasgow issued in 2026. Montana had 41 severe thunderstorm warnings in May 2026, against 27 in an average May of 2008-2025 (Montana's severe thunderstorm warnings by year).

ExpiredWarning

Issued6:13 p.m. MDT, May 29, 2026
In force6:13 p.m. MDT, May 29, 2026
Expired7:15 p.m. MDT, May 29, 2026

In force for 1 hour; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Glasgow MT
Area
Garfield and Petroleum
State
Montana
Level
Warning
Issued
6:13 p.m. MDT, May 29, 2026
Expires
7:15 p.m. MDT, May 29, 2026
CAP severity, certainty, urgency
Severe, Observed, Immediate
VTEC event
KGGW SV.W 0022
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

SVRGGW The National Weather Service in Glasgow has issued a * Severe Thunderstorm Warning for... East central Petroleum County in northeastern Montana... West central Garfield County in northeastern Montana... * Until 715 PM MDT. * At 612 PM MDT, a severe thunderstorm was located 11 miles east of Winnett, moving north at 10 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Mosby and Cat Creek.

What the agency told people to do

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.

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