Weather Alert in Alaska
Winter Storm Watch issued March 2 at 8:57AM AKST until March 4 at 3:00AM AKST by NWS Juneau AK
AREAS AFFECTED: Glacier Bay; Eastern Chichagof Island; Cape Fairweather to Lisianski Strait; Admiralty Island; City and Borough of Juneau
DESCRIPTION: ...MULTIPLE ROUNDS OF SNOWFALL EXPECTED THROUGH EARLY WEEK... Snow continues for the central inner channels from Wrangell and Kake northward though rates are starting to diminish. Expect the snow to continue to diminish through the day as the system moves off to the east. Another system will bring more accumulating snow to the panhandle Monday night into Tuesday night. The track of this follow up feature could lead to significant swings in snow accumulations from Frederick Sound northward to the Icy Strait corridor. * WHAT...Heavy snow possible. Total snow accumulations of 6 to 11 inches possible. Winds could gust as high as 45 mph. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait, Admiralty Island and City and Borough of Juneau. * WHEN...From late Monday night through late Tuesday night. * IMPACTS...Travel could be very difficult and is discouraged. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...An arctic boundary over the panhandle is expected to continue to linger around Frederick Sound Monday into Tuesday. An approaching system will bring a fresh influx of moisture and moderate to heavy snow to the central panhandle. A more southerly track of this feature could lead to much lower snow totals for communities north of Angoon.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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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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