Weather Alert in Montana
Avalanche Watch issued February 16 at 1:45PM MST by NWS Missoula MT
AREAS AFFECTED: West Glacier Region
DESCRIPTION: AVAMSO The following message is transmitted at the request of Flathead Avalanche Center Hungry Horse MT. ...AVALANCHE WATCH ISSUED BY THE FLATHEAD AVALANCHE CENTER... 14:00 MST Mon Feb 16 2026 The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY AVALANCHE WATCH for the following areas: NWS Missoula MT - MTZ002 (MTZ002) * WHAT...The avalanche danger is anticipated to increase to High (Level 4 of 5) Tuesday as an incoming storm brings heavy snow and strong winds to the forecast region. * WHERE...Mid and upper elevations in the Swan, Flathead, and Whitefish Ranges, and portions of Glacier National Park (the Apgar Range, the Lake McDonald Valley, and Marias Pass). * WHEN...In effect from Mon 14:00 MST to Tue 14:00 MST. * IMPACTS...A foot or more of new snow is forecasted at mid and upper- elevations. Moderate winds may drift snow into steep start zones. Many slopes and start zones harbor weak layers that are already sensitive to human triggers. The additional loading makes large to very large natural and triggered avalanches likely. Remotely-triggered avalanches will also be possible.</p> * PRECAUTIONARY / PREPAREDNESS ACTIONS...If the snowfall arrives as forecast, very dangerous avalanche conditions may develop. Travel in avalanche terrain is not recommended in these conditions. Avalanches may be triggered from below or from adjacent slopes. 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.
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Weather Topic: What are Altostratus Clouds?
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Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
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Weather Topic: What are Cirrostratus Clouds?
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Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
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