Weather Alert in Alaska
Winter Storm Warning issued March 3 at 7:41AM AKST until March 4 at 12:00PM AKST by NWS Juneau AK
AREAS AFFECTED: Glacier Bay; Eastern Chichagof Island; Cape Fairweather to Lisianski Strait; City and Borough of Juneau
DESCRIPTION: ...SNOW FOR THE NORTHERN AND CENTRAL PANHANDLE THROUGH WEDNESDAY... Another system is moving into the panhandle this morning and is bringing heavier snowfall rates across much of central and northern southeast Alaska. Snow is expected to mix with and eventually change over to rain on Tuesday from Kake over to Petersburg, however, if the changeover is delayed, snowfall amounts could be higher. * WHAT...Heavy snow expected. Total snow accumulations of 10 to 13 inches. Winds gusting as high as 40 mph near downtown Juneau and Douglas. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait and City and Borough of Juneau. * WHEN...Until noon AKST Wednesday. * IMPACTS...Travel will be difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Heaviest snowfall rates are expected Tuesday afternoon into Wednesday morning, with snowfall rates of an inch an hour possible. Gusty winds around downtown Juneau and Douglas could cause some areas of blowing snow.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water with you in case of an emergency. 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 Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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