Weather Alert in North Carolina
Winter Storm Warning issued February 22 at 10:00AM EST until February 24 at 12:00AM EST by NWS Blacksburg VA
AREAS AFFECTED: Ashe; Watauga; Smyth; Grayson
DESCRIPTION: Low pressure near Cape Hatteras, North Carolina, will strengthen into a major winter storm as in moves north along the East Coast. * WHAT...Heavy snow mainly for elevations above 3500 Feet. Total snow Total accumulations ranging from up to 3 inches in the lower elevations, to 5 to 12 inches above 3500 feet, especially in places like Beech Mountain, Mount Rogers and Flattop Mountain. Winds gusting as high as 50 mph. * WHERE...In North Carolina, Ashe and Watauga Counties. In Virginia, Grayson and Smyth Counties. * WHEN...Until midnight EST Monday Night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult. The hazardous conditions could impact the Monday morning and evening commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Temperatures falling into the teens tonight, combined with the wind, will result in wind chills near zero late tonight and Monday.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.
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Weather Topic: What is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
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
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