Weather Alert in Montana
Blizzard Warning issued March 11 at 9:21AM MDT until March 12 at 9:00AM MDT by NWS Missoula MT
AREAS AFFECTED: West Glacier Region
DESCRIPTION: * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations up to 4 inches. 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. For the second Winter Storm Warning, heavy snow expected. There is a likelihood of major winter weather impacts winter storm impacts. Total snow accumulations between 5 and 20 inches. Winds gusting as high as 40 mph. * WHERE...Polebridge, Marias Pass, Bad Rock Canyon, Highway 83 Bigfork to Swan Lake, Glacier National Park, and Essex. * WHEN...For the Winter Weather Advisory, until 6 PM MDT this evening. For the first Winter Storm Warning, from 6 PM this evening to midnight MDT tonight. For the Blizzard Warning, from midnight tonight to 9 AM MDT Thursday. For the second Winter Storm Warning, from 9 AM Thursday to noon MDT Saturday. * IMPACTS...Whiteout conditions are expected and will make travel treacherous and potentially life-threatening late Wednesday night 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 late tonight through Thursday morning with wind gusts of 60 to 80 mph.
INSTRUCTION: 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.
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Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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