από τις: 21/03/2026, 08:36
προς την: 22/03/2026, 08:45

An atmospheric river will bring moderate rain rates to the mountains of western Montana through Saturday afternoon. This will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers and streams may increase and reach bankfull or exceed their banks.

* WHAT...Flooding caused by rain and snowmelt continues to be possible.

* WHERE...A portion of northwest Montana, including the following county, Lincoln.

* WHEN...Through Sunday morning.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Rockfall is possible.

* ADDITIONAL DETAILS... - The atmospheric river will bring moderate rain rates between 0.10 to 0.25 inches per hour to the Cabinet Mountains between 9 PM Friday evening and 4 AM MDT Saturday. With conditions already primed, creeks could overflow their banks early Saturday morning. Landslides and rockfalls are possible on windward and leeward sides of the mountains. Ross Creek has swelled into nearby ditches and caused water to flow over Highway 56 south of Bull Lake.

The Yaak River and Fisher River are forecast to reach action stage by Saturday night. - https://www.weather.gov/mso/hydrology

από τις: 21/03/2026, 06:24
προς την: 22/03/2026, 06:00

AVWMSO

The following message is transmitted at the request of Flathead Avalanche Center Hungry Horse MT.

...AVALANCHE WARNING ISSUED BY THE FLATHEAD AVALANCHE CENTER...

06:00 MDT Sat Mar 21 2026 The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas:

NWS Missoula MT - MTZ001 (MTZ001)

* WHAT...Rain and warm temperatures have created very dangerous avalanche conditions that will likely persist through Saturday.

* WHERE...Slopes above 5,000 feet in the Flathead Ranges, and the Lake McDonald and Marias Pass areas of Glacier National Park.

* WHEN...In effect from Sat 06:00 MDT to Sun 06:00 MDT.

* IMPACTS...Natural and human-triggered avalanches are likely. Wet avalanches will entrain a dangerous amount of debris. Weak layers buried several feet deep may fail, resulting in very large and destructive avalanches.</p>

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Travel in avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain.

Consult http://www.flatheadavalanche.org/ or www.avalanche.org for more detailed information.

Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.