Weather Alert in Virginia
Coastal Flood Warning issued August 21 at 3:27AM EDT until August 22 at 2:00PM EDT by NWS Wakefield VA
AREAS AFFECTED: Accomack; Northampton
DESCRIPTION: * WHAT...For the Beach Hazards Statement, a high risk of rip currents is expected. For the High Surf Advisory, large breaking waves of 8 to 12 feet expected in the surf zone. For the Coastal Flood Advisory, around 1 foot of inundation above ground level possible in low-lying areas. For the Coastal Flood Warning, one to three feet of inundation above ground level possible in low- lying areas near shorelines and tidal waterways. * WHERE...Accomack and Northampton Counties. * WHEN...For the High Surf Advisory, until 7 AM EDT Friday. For the Beach Hazards Statement, through Friday evening. For the Coastal Flood Warning, from 5 PM this afternoon to 2 PM EDT Friday. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Very dangerous swimming and surfing conditions are expected, as well as the wave action resulting in significant beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. Dangerous shore break can throw a swimmer or surfer head first into the bottom causing neck and back injuries.
INSTRUCTION: Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. Remain out of the water to avoid hazardous swimming conditions.
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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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