Weather Alert in Virginia
Winter Storm Watch issued February 21 at 1:46AM EST until February 23 at 6:00AM EST by NWS Baltimore MD/Washington DC
AREAS AFFECTED: Northern Virginia Blue Ridge; Central Virginia Blue Ridge
DESCRIPTION: * WHAT...Heavy snow possible. Total snow accumulations of 5 inches or more are possible, especially above 2500 feet. Winds could gust as high as 45 mph. * WHERE...Central Virginia Blue Ridge and Northern Virginia Blue Ridge. * WHEN...From Sunday morning through late Sunday night. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches.
INSTRUCTION: Monitor the latest forecasts for updates on this situation.
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North America Water Vapor (Moisture)
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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Freezing Rain
A fractus cloud (scud) is a fragmented, tattered cloud which has
likely been sheared off of another cloud. They are accessory clouds, meaning they
develop from parent clouds, and are named in a way which describes the original
cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as
cumulus fractus, while fractus clouds which have originated from stratus clouds
are referred to as stratus fractus. Under certain conditions a fractus cloud might
merge with another cloud, or develop into a cumulus cloud, but usually a
fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds,
and are a display of wind activity.
Next Topic: Freezing Rain
Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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