Weather Alert in Pennsylvania
Winter Storm Watch issued February 20 at 6:28PM EST until February 24 at 1:00AM EST by NWS Pittsburgh PA
AREAS AFFECTED: Westmoreland Ridges; Fayette Ridges; Ridges of Eastern Monongalia and Northwestern Preston; Preston; Eastern Preston; Western Tucker; Eastern Tucker
DESCRIPTION: * WHAT...An extended period of snow for high terrain. More than 6 inches of snow is favored for Sunday through Monday. * WHERE...Portions of southwest Pennsylvania and northern West Virginia. * WHEN...From late Saturday night through late Monday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Highest accumulations are most likely for grassy surfaces in the high terrain. Snow totals may vary largely from valleys to ridgetops. Snow most likely to stick to roads and sidewalks Sunday night.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
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