Weather Alert in Maine
Winter Storm Warning issued February 22 at 12:54PM EST until February 24 at 7:00AM EST by NWS Caribou ME
AREAS AFFECTED: Southern Penobscot; Interior Hancock; Central Washington; Northern Washington
DESCRIPTION: * WHAT...Heavy snow and blowing snow expected. Total snow accumulations between 5 and 11 inches, highest totals east of Bangor. Winds gusting as high as 45 mph, strongest Monday afternoon and evening. * WHERE...Northern Washington, Central Washington, Interior Hancock, and Southern Penobscot Counties. * WHEN...From 10 AM Monday to 7 AM EST Tuesday. Strongest winds and heaviest snow Monday afternoon and evening. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. Isolated power outages are possible.
INSTRUCTION: A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org.
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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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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