Weather Alert in Alaska
Blizzard Warning issued February 16 at 6:30PM AKST until February 18 at 3:00PM AKST by NWS Fairbanks AK
AREAS AFFECTED: Shishmaref; Bering Strait Coast; Southern Seward Peninsula Coast; Yukon Delta Coast; St Lawrence Island
DESCRIPTION: * WHAT...Blizzard conditions. Total snow accumulations between 6 and 12 inches. Winds gusting as high as 60 mph. * WHERE...Bering Strait Coast, Shishmaref, Southern Seward Peninsula Coast, St Lawrence Island, and Yukon Delta Coast. * WHEN...Until 3 PM AKST Wednesday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. Strong winds could result in power outages. * ADDITIONAL DETAILS...Heaviest snowfall potential will be on the south side of the Seward Peninsula.
INSTRUCTION: Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle.
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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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