Weather Alert in South Carolina
Flash Flood Warning issued September 6 at 6:56PM EDT until September 6 at 9:00PM EDT by NWS Columbia SC
AREAS AFFECTED: Lexington, SC; Richland, SC
DESCRIPTION: FFWCAE The National Weather Service in Columbia has issued a * Flash Flood Warning for... Northeastern Lexington County in central South Carolina... Central Richland County in central South Carolina... * Until 900 PM EDT. * At 656 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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... Columbia, West Columbia, Cayce, Springdale, St. Andrews, Oak Grove, Riverbanks Zoo, West Columbia Riverwalk, Guignard Park, Eau Claire and Seven Oaks. This includes the following highways... Interstate 126 between mile markers 1 and 3. Interstate 26 between mile markers 108 and 112.
INSTRUCTION: Most flooding deaths occur in vehicles. Never drive through a flooded roadway or around barricades. Turn around, don't drown. Be aware of your surroundings and do not drive on flooded roads. Flash flooding will occur in the Five Points area extending downstream along Rocky Branch Creek. This includes Maxcy Gregg Park, areas of the USC campus along the creek, the intersection at Pickens and Blossom, the intersection at Whaley and Main and areas of the Olympia neighborhood along the creek.
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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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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