Weather Alert in South Carolina
Flash Flood Warning issued August 22 at 5:52PM EDT until August 22 at 9:00PM 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 900 PM EDT. * At 552 PM EDT, Doppler radar indicated bands of moderate to locally heavy rainfall moving into Mount Pleasant, Isle of Palms and Sullivans Island. While additional rainfall should average less than 2 inches, the combination of an elevated incoming high tide and heavy rainfall should produce areas of additional flash flooding. The warning has been extended for this reason. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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. Flooding is likely in low-lying coastal areas where high tide will inhibit runoff of heavy rain.
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
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