Weather Alert in Maryland
Winter Weather Advisory issued February 6 at 12:05PM EST until February 7 at 7:00AM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Extreme Western Allegany; Western Highland; Western Mineral
DESCRIPTION: ...NEAR BLIZZARD CONDITIONS EXPECTED LATE TONIGHT INTO EARLY SATURDAY... .A strong Arctic front will deliver heavy upslope snow showers and squalls, strong winds, and dangerously cold wind chills to the Alleghenies late tonight into the Saturday. * WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 to 60 mph will result in blowing and drifting snow. * WHERE...In Maryland, Extreme Western Allegany County. In Virginia, Western Highland County. In West Virginia, Western Mineral County. * WHEN...Until 7 AM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Periods of heavy snow are likely at times this afternoon into Saturday morning, with snow squalls possible during this time. Blowing and drifting snow, along with heavy falling snow, could result in very low visibility.
INSTRUCTION: Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
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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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