Weather Alert in South Carolina
Flash Flood Warning issued August 22 at 6:47PM EDT until August 22 at 8:15PM EDT by NWS Charleston SC
AREAS AFFECTED: Berkeley, SC; Charleston, SC; Dorchester, SC
DESCRIPTION: At 647 PM EDT, emergency management officials reported flash flooding is still ongoing across much of the Charleston Metro Area. Many roads are reported closed and flooded across Downtown Charleston, North Charleston and surrounding communities. Radar shows bands of moderate to locally heavy rain expanding across the Metro area again. This will worsen ongoing flash flooding, especially as an elevated high tide approaches. As much as 3 to 6 inches have fallen so far today. An additional inch could fall. Tides in the Charleston Harbor are expected to reach between 7.7 and 7.9 ft MLLW, which is well into the moderate flood range. With drainage systems full of saltwater, any heavy rainfall that falls will immediately result in additional flooding. In addition, people along Church Creek in West Ashley should carefully monitor water levels this evening. Flooding could develop in neighborhoods near the creek, including areas along Winners Circle. 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, Mount Pleasant, Goose Creek, Hanahan, West Ashley, Downtown Charleston, I-26/I-526 Interchange, James Island, Johns Island and Daniel Island. This includes the following highways... I-26 between mile markers 208 and 221. I-526 between mile markers 11 and 29.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Report flooding directly to the Charleston National Weather Service at 1-888-383-2024 or email your reports to nws.charlestonsc@noaa.gov.
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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
Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
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