Locally heavy rainfall amounts of 2-4 inches in a 2 hour period produced flash flooding in portions of Sumter and Lee Counties. Several roads were closed.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CAE wrote it up.
Locally heavy rainfall amounts of 2-4 inches in a 2 hour period produced flash flooding in portions of Sumter and Lee Counties. Several roads were closed.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before the first event at Sep 30, 8:52 PM EST, 8 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 312 AM EDT WED SEP 30 2015 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-010715- LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD- MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON- RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON- BAMBERG- 312 AM EDT WED SEP 30 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA. .DAY ONE...TODAY AND TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THE POTENTIAL FOR HEAVY RAIN EXISTS THURSDAY THROUGH SATURDAY MAINLY FOR THE NORTHEASTERN FORECAST AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
651 PM EDT WED SEP 30 2015
SCZ029-031-302330-
LEE-SUMTER-
651 PM EDT WED SEP 30 2015
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN LEE AND EAST
CENTRAL SUMTER COUNTIES...
AT 650 PM EDT...A STRONG THUNDERSTORM WAS 8 MILES SOUTHWEST OF
CARTERSVILLE...OR 13 MILES NORTHEAST OF SOUTH SUMTER...MOVING
NORTHEAST AT 25 MPH.
WIND GUSTS OF 35 TO 45 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
LAT...LON 3390 8020 3391 8022 3400 8029 3403 8027
3414 8014 3409 8008 3408 8003 3403 7997
3402 7994 3401 7994
TIME...MOT...LOC 2250Z 237DEG 27KT 3402 8015
WRSThe Columbia radar (KCAE), 82 km away, was scanning. The volume nearest the first event began at 01:58 UTC.
1 flash flood. Local standard time, as filed.
Sumter County Dispatch reported flooding on Lafayette Street, Calhoun Road, and Broad Street. Several rural roads in the area were also flooded and temporarily closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2015Every state in 2015This day in weather historyWarnings in South Carolina, September 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 597467.