Weather Alert in Montana
Winter Weather Advisory issued February 19 at 1:58AM MST until February 19 at 5:00AM MST by NWS Billings MT
AREAS AFFECTED: Northern Park; Judith Gap; Paradise Valley; Livingston Area; Beartooth Foothills; Northern Sweet Grass; Melville Foothills; Southern Wheatland
DESCRIPTION: * WHAT...Periods of snow. Additional snow accumulations up to one inch. * WHERE...Portions of central and south central Montana. * WHEN...Until 5 AM MST early this morning. * IMPACTS...Snow will impact travel at times. This includes travel along Interstate 90, Highway 191, and Highway 89.
INSTRUCTION: Slow down and use caution while traveling. For the latest road conditions, call 5 1 1.
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Current U.S. National Radar--Current
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National Weather Forecast--Current
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National Weather Forecast for Tomorrow
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North America Water Vapor (Moisture)
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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
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
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.
Next Topic: Cirrocumulus Clouds
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