Skip to main content
AREAZINENotices · US CA UK AU

NWS Missoula MTFA.W 0001May 31, 2026

Flood Warning: Flathead, Lake and Sanders, MT

The National Weather Service office in Missoula issued a flood warning for Flathead, Lake and Sanders in Montana, which was in force until 7:30 p.m. local time on June 1. It was the 1st areal flood warning the NWS office in Missoula issued in 2026.

ExpiredWarning

Issued7:42 p.m. MDT, May 31, 2026
In force7:42 p.m. MDT, May 31, 2026
Expired7:30 p.m. MDT, June 1, 2026

In force for 23.8 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Missoula MT
Area
Flathead, Lake and Sanders
State
Montana
Level
Warning
Issued
7:42 p.m. MDT, May 31, 2026
Expires
7:30 p.m. MDT, June 1, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KMSO FA.W 0001
Official source
National Weather Service: the notice at its source

Flood 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

* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...South Central Flathead County in northwestern Montana... Western Lake County in northwestern Montana... Small streams along the Mission and Swan mountain ranges. * WHEN...Until 730 PM MDT Monday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. * ADDITIONAL DETAILS... - At 736 PM MDT, emergency management reported heavy rain in the warned area. Flooding is ongoing or expected to begin shortly. Between 1 and 3 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are possible in the warned area. - Some locations that will experience flooding include... Polson, Evergreen, Columbia Falls, Ronan, St. Ignatius, Pablo, Woods Bay, and Bigfork. - Small streams along the Mission and Swan mountain ranges. - https://www.weather.gov/mso/hydrology

What the agency told people to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

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