Weather Alert in South Carolina
Flash Flood Warning issued August 23 at 7:13AM EDT until August 23 at 10:15AM EDT by NWS Charleston SC
AREAS AFFECTED: Charleston, SC
DESCRIPTION: FFWCHS The National Weather Service in Charleston has issued a * Flash Flood Warning for... Charleston County in southeastern South Carolina... * Until 1015 AM EDT. * At 713 AM EDT, Doppler radar and automated rain gauges indicated showers and thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen across an area from the City of Charleston to James Island north to Shadowmoss. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. In addition, Church Creek near West Ashley may rise above flood stage this morning. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... North Charleston, West Ashley, Downtown Charleston, James Island, Johns Island, Maybank Bridge, Charles Towne Landing, James Island County Park and Charleston Naval Complex.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. High tide will inhibit runoff of heavy rain, flooding areas of poor drainage in Downtown Charleston. Areas most prone to flooding include the Market, Crosstown, East Bay Street and Morrison Drive.
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Weather Topic: What are Wall Clouds?
Home - Education - Cloud Types - Wall Clouds
Next Topic: Altocumulus Clouds
A wall cloud forms underneath the base of a cumulonimbus cloud,
and can be a hotbed for deadly tornadoes.
Wall clouds are formed by air flowing into the cumulonimbus clouds, which can
result in the wall cloud descending from the base of the cumulonimbus cloud, or
rising fractus clouds which join to the base of the storm cloud as the wall cloud
takes shape.
Wall clouds can be very large, and in the Northern Hemisphere they generally
form at the southern edge of cumulonimbus clouds.
Next Topic: Altocumulus Clouds
Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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