Weather Alert in South Carolina
Flood Warning issued August 13 at 9:34AM EDT until August 18 at 4:00AM EDT by NWS Columbia SC
AREAS AFFECTED: Calhoun, SC; Richland, SC
DESCRIPTION: ...The Flood Warning continues for the following rivers in South Carolina... Congaree River At Congaree River at Congaree NP Near Gadsden affecting Richland and Calhoun Counties. Congaree River At Carolina Eastman affecting Richland, Calhoun and Lexington Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Congaree River at Congaree River at Congaree NP Near Gadsden. * WHEN...Until early Monday morning. * IMPACTS...At 15.0 feet, Flooding begins in the Congaree National Park. This will begin to produce flooding of portions of the lower boardwalk. At 17.0 feet, The access road to the Sandy Run subdivision becomes flooded. The lower boardwalk in the Congaree National Park becomes flooded by Cedar Creek. * ADDITIONAL DETAILS... - At 9:00 AM EDT Wednesday the stage was 16.8 feet. - Bankfull stage is 14.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM EDT Wednesday was 16.8 feet. - Forecast...The river is expected to rise to a crest of 17.1 feet just after midnight tonight. It will then fall below flood stage early Sunday morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Caution is urged when walking near riverbanks. Residents and those with interests near the river should monitor rising water levels and take action if necessary. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 945 PM EDT.
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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
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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