Weather Alert in South Carolina
Flash Flood Warning issued August 22 at 3:39PM EDT until August 22 at 6:00PM EDT by NWS Charleston SC
AREAS AFFECTED: Charleston, SC
DESCRIPTION: FFWCHS The National Weather Service in Charleston has extended the * Flash Flood Warning for... Charleston County in southeastern South Carolina... * Until 600 PM EDT. * At 339 PM EDT, emergency management reported roads that were closed in Mount Pleasant by flood waters earlier this afternoon are now open. However, radar shows pockets of moderate to heavy rainfall moving inland from off the Atlantic. The risk for additional flash flooding continues. Between 2 and 4 inches of rain has fallen in some areas this afternoon. An additional 1 to 2 inches could fall through 6 PM. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. 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... Mount Pleasant, Isle Of Palms, Sullivan's Island, Mount Pleasant Towne Centre, Boone Hall Plantation, Sullivans Island, Seaside Farms, East Cooper Regional Medical Center, Hamlin Plantation and Snowden. This includes I-526 between mile markers 29 and 31.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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