Weather Alert in Alaska
High Wind Warning issued August 28 at 3:48AM AKDT until August 28 at 10:00PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Anchorage Hillside / Eagle River
DESCRIPTION: * WHAT...Southeast winds 35 to 45 mph with gusts up to 75 mph. * WHERE...Anchorage Hillside / Eagle River. * WHEN...Until 10 PM AKDT this evening. * IMPACTS...High winds may move loose debris, damage property, and cause power outages. Trees are still fully leafed, and will be particularly vulnerable to damage in strong winds. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A strong frontal system moving into Southcentral will bring widespread wind gusts ranging from 55 to 75 mph to the Anchorage Hillside beginning early this morning. The strongest winds are expected to peak near the middle of the day. Winds will then slowly weaken through late this evening and diminish by early Friday morning.
INSTRUCTION: People are urged to secure loose objects that could be blown around or damaged by the wind. Prepare for the possibility of widespread power outages. Use caution if you must drive.
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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
Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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