Weather Alert in North Carolina
Winter Weather Advisory issued February 21 at 7:09PM EST until February 24 at 12:00AM EST by NWS Blacksburg VA
AREAS AFFECTED: Ashe; Watauga; Smyth; Grayson
DESCRIPTION: Low pressure will pass over the region tonight and Sunday with rain changing to snow across the higher elevations. Arrival of colder air Sunday along with the development of a strong winter storm along the coastal mid-atlantic will result in an extended period of snow across the mountains Sunday night through Monday. * WHAT...Snow expected. Total snow accumulations up to 4 inches. Locally higher amounts at elevations above 4000 feet. Winds gusting as high as 45 mph. * WHERE...In North Carolina, Ashe and Watauga Counties. In Virginia, Grayson and Smyth Counties. * WHEN...From midnight tonight to midnight EST Monday Night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Temperatures are expected to fall into the teens Sunday night with wind chills in the single digits.
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 is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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
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