Lexington, Massachusetts, USA
Issued by the National Weather Service - Missoula, MT
Areas Affected: West Glacier Region
Urgency: Expected
Severity: Severe
Certainty: Likely
Alert Sent: Thursday 5:09am MDT
Alert Effective: Thursday 5:09am MDT
Alert Expires: Friday 5:15am MDT (expect updated alert by this time)
Event Onset: Thursday 9:00am MDT
Event Ends: Saturday 12:00pm MDT
Issued by: NWS Missoula MT
...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO NOON MDT SATURDAY... * WHAT...For the first Winter Storm Warning, heavy snow expected. Total snow accumulations up to 6 inches. For the Blizzard Warning, blizzard conditions expected. There is a high likelihood of extreme impacts from strong winds and falling and/or blowing snow on US Highway 2 east of West Glacier to Marias Pass and in backcountry and mountain areas. Wind gusts up to 80 mph but up to 100 mph in the mountains. For the second Winter Storm Warning, heavy snow expected. There is a likelihood of major winter weather impacts. Total snow accumulations between 5 and 20 inches. Winds gusting as high as 40 mph. * WHERE...Polebridge, Marias Pass, Glacier National Park, Highway 83 Bigfork to Swan Lake, Bad Rock Canyon, and Essex. * WHEN...For the Blizzard Warning, until 9 AM MDT this morning. For the Winter Storm Warning, from 9 AM this morning to noon MDT Saturday. * IMPACTS...Whiteout conditions are expected and will make travel treacherous and potentially life-threatening through Thursday morning. For EXTREME winter storm impacts, expect substantial disruptions to normal activities. Extremely dangerous or impossible traveling conditions. Travel in the impacted areas is not advised. Extensive and widespread closures and disruptions to infrastructure may occur. Life saving actions may be needed. Very strong winds could cause extensive tree damage. Visibilities may drop below 1/4 mile due to falling and blowing snow. * ADDITIONAL DETAILS...High winds will impact all elevations through this morning with wind gusts of 60 to 80 mph, though gusts to 100 mph are possible on the highest peaks.
Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay in your vehicle.
ID: urn:oid:2.49.0.1.840.0.9aa3ec397066e102885e8b5bf77df551e5a6527b.001.2 Codes: MTZ002 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9aa3ec397066e102885e8b5bf77df551e5a6527b.001.2
Areas Affected: Kootenai/Cabinet Region; West Glacier Region
Urgency: Unknown
Severity: Unknown
Certainty: Unknown
Alert Sent: Thursday 6:04am MDT
Alert Effective: Thursday 6:04am MDT
Alert Expires: Friday 6:00am MDT
Event Onset: Thursday 6:04am MDT
Issued by: NWS Missoula MT
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 Thu Mar 12 2026 The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas: NWS Missoula MT - MTZ001 (MTZ001)...MTZ002 (MTZ002) * WHAT...Strong to extreme winds coupled with recent and ongoing snowfall will create very dangerous avalanche conditions. * WHERE...Slopes above 5000 feet in the Whitefish, Swan, and Flathead Ranges, and the Lake McDonald and Marias Pass areas of Glacier National Park * WHEN...In effect from Thu 06:00 MDT to Fri 06:00 MDT. * IMPACTS...Natural and human-triggered avalanches are very likely. Avalanches will release in the surface snow and on weak layers buried several feet deep, resulting in large to very large avalanches. * 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.
ID: urn:oid:2.49.0.1.840.0.2bf3bca0e39b05ce0e08541ca6e2df4c5c2f32f2.001.1 Codes: MTZ001, MTZ002 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2bf3bca0e39b05ce0e08541ca6e2df4c5c2f32f2.001.1