Weather Alert in Alaska
Winter Weather Advisory issued March 22 at 4:16AM AKDT until March 22 at 10:00AM AKDT by NWS Juneau AK
AREAS AFFECTED: Haines Borough and Klukwan; Glacier Bay; Eastern Chichagof Island; Cape Fairweather to Lisianski Strait; City and Borough of Sitka; Admiralty Island; City and Borough of Juneau; Petersburg Borough; Western Kupreanof and Kuiu Island
DESCRIPTION: ...NUMEROUS SNOW SHOWERS CONTINUE THROUGH SUNDAY MORNING, SECOND ROUND OF SNOW EXPECTED FOR THE SOUTHERN PANHANDLE BY SUNDAY AFTERNOON... .Another band of snow is pushing into Yakutat this morning with reported visibilities as low as one-half mile ongoing. This band will continue to move northwestward out of the area through early Sunday morning. In its wake, the hit or miss snow showers we have seen the previous week will return along the back side of this front with periods of light to moderate snow expected, the winter weather advisories have been extended through late Sunday morning for the northern panhandle. Snow will gradually end across the northern panhandle through Sunday afternoon with longer duration advisories continuing for portions of the far southern panhandle. Snowfall accumulations will be variable across the area due to the hit or miss nature of these showers. Rates as high as 1 inch per hour and visibilities down to 1 mile or less will be possible within any heavier showers that repeatedly move over the same location. These showers can also bring infrequent periods of increased wind gusts up to 40 mph. For the southern panhandle communities, temperatures are expected to start cooling through Sunday with bands of snow moving through the southern and central panhandle by the afternoon into Sunday night, prompting the longer duration Winter Weather Advisory. Accumulations in the south will be the highest on the higher elevations of Prince of Wales Island midday Sunday, but more accumulations expected at sea level by Sunday evening and night as temperatures cool through Sunday evening. * WHAT...Snow. Total snow accumulations of 2 to 5 inches. Visibilities reduced to 1 mile or less. Wind gusts up to 35mph at Juneau. * WHERE...Haines, Gustavus, Hoonah, Tenakee Springs, Elfin Cove, Pelican, Sitka, Angoon, Juneau, Petersburg, Kake, and Port Alexander. * WHEN...Until 10 AM AKDT this morning. * IMPACTS...Travel by land, air, and sea could be impacted. * ADDITIONAL DETAILS...Numerous snow showers will continue across the panhandle through Sunday morning in the wake of the departing front, gradually diminishing in coverage into the afternoon. Snowfall accumulations will be variable across the area due to the hit or miss nature of these showers.
INSTRUCTION: Slow down and use caution while traveling. People are urged to prepare their property before the onset of winter weather. For the latest road conditions, where available, call 5 1 1 or visit 511.alaska.gov.
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Weather Topic: What are Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
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