Weather Alert in Alaska
Special Weather Statement issued September 5 at 4:25AM AKDT by NWS Anchorage AK
AREAS AFFECTED: Kuskokwim Delta Coast and Nunivak Island
DESCRIPTION: A strong low pressure system in the Bering Sea sends its front eastward to the Kuskokwim Delta Coast by this afternoon. Southeast winds will pick up through the day today and become strong and gusty by tonight. Winds gusts of up to 50 mph at times are likely in communities along the northern Kuskokwim Bay Coast tonight through Saturday morning before slowly diminishing Saturday afternoon. Locations impacted include Kongiganak, Kwigillingok, and Kipnuk. Along with the strong push of southeasterly winds, water levels will also increase with peak water levels occurring late Saturday morning. Water levels are expected to peak at 1 to 2 feet above the normal highest tide line. While significant coastal flooding is not expected, low-lying areas could fill up with water, especially around Kipnuk and Kwigillingok. Higher wave heights are also likely in the coastal waters of the Kuskokwim Delta and near the coast with 4 to 8 foot waves likely. Wave heights will peak Saturday morning and slowly subside through Sunday morning. Higher waves breaking along the coast could cause some localized areas of beach erosion.
INSTRUCTION: N/A
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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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