Weather Alert in South Carolina
Flash Flood Warning issued August 22 at 5:41PM EDT until August 22 at 9:00PM EDT by NWS Charleston SC
AREAS AFFECTED: Berkeley, SC; Charleston, SC; Dorchester, SC
DESCRIPTION: FFWCHS The National Weather Service in Charleston has extended the * Flash Flood Warning for... Berkeley County in southeastern South Carolina... Charleston County in southeastern South Carolina... Dorchester County in southeastern South Carolina... * Until 900 PM EDT. * At 541 PM EDT, Emergency management officials reported flash flooding is ongoing across the warned area. Roads remain closed and are flooded across portions of Dorchester County as well as Berkeley County. Water has entered homes around Knightsville and Summerville. As much as 2 to 6 inches of rain have fallen in this area today. Up to an additional inch could fall through 9 PM. The risk for additional flash flooding continues, especially near streams and creeks. Dorchester County Emergency Management is requesting that people stay off the roads and remain at home. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... North Charleston, Summerville, Goose Creek, Hanahan, Ladson, Givhans Ferry State Park, Ridgeville, Sangaree, College Park and Knightsville. This includes I-26 between mile markers 194 and 207.
INSTRUCTION: Keep children away from storm drains, culverts, creeks and streams. Water levels can rise rapidly and sweep children away. Be aware of your surroundings and do not drive on flooded roads.
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Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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
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