Weather Alert in Maryland
Cold Weather Advisory issued February 8 at 8:37PM EST until February 9 at 10:00AM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Extreme Western Allegany; Central and Eastern Allegany; Western Garrett; Eastern Garrett; Western Grant; Western Mineral; Eastern Mineral
DESCRIPTION: * WHAT...Cold wind chills of 10 below to 15 below zero expected on the ridges, with cold temperatures colder than 10 below zero possible in high elevation valleys. * WHERE...In Maryland, Central and Eastern Allegany, Eastern Garrett, Extreme Western Allegany, and Western Garrett Counties. In West Virginia, Eastern Mineral, Western Grant, and Western Mineral Counties. * WHEN...Until 10 AM EST Monday. * IMPACTS...The cold weather could result in hypothermia if precautions are not taken.
INSTRUCTION: Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. If you do not have heat in your home or lack shelter, you can call 211 or visit your local county or city Website for assistance locating appropriate shelter from the cold.
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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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