Weather Alert in Minnesota
Winter Weather Advisory issued February 24 at 2:56AM CST until February 24 at 3:00PM CST by NWS Duluth MN
AREAS AFFECTED: North St. Louis; Central St. Louis
DESCRIPTION: * WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Central and North St. Louis County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. This also includes the Boundary Waters western area. * WHEN...Until 3 PM CST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. * ADDITIONAL DETAILS...The highest snow accumulations will be in far east-central and northern St. Louis County. While snowfall rates will be moderate to heavy at times during the late morning to early afternoon, snow consistency will not be as dense as last week's snow.
INSTRUCTION: Slow down and use caution while traveling. Call 511 or visit www.511mn.org for Minnesota road information.
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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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