Thunderstorm Wind, Sumter
- When
- August 6, 12:50 AM EST
- Where
- Sumter County, Sumter
- Measured
- 55 kt (63 mph) estimated gust
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 33.917, -80.350
Sheriff reported trees down on Loring Mill Road.
Damaging Wind in South Carolina, August 6, 2004
1 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What forecasters said that day
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 Aug 5, 10:01 PM EST, 2 hours 49 minutes earlier.
Area forecast discussion, Aug 5, 10:01 PM EST, 2 hours 49 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE COLUMBIA SC 1101 PM EDT THU AUG 5 2004 .UPDATE... OBS INDICATE COLD FRONT STILL NORTH OF THE CWA STRETCHING FROM JUST E OF RAH SOUTHWEST TO NEAR CLT INTO THE MTS/UPSTATE OF SC. 88D SHOWS AREAS OF SHRA/TSRA AHEAD OF COLD FRONT FROM ERN NC INTO THE UPSTATE OF SC. ADDITIONAL ACTIVITY FROM THE MIDLANDS TO THE PEE DEE. NEEDED TO UPDATE CURRENT ZONE FORECAST FOR SHRA/TSRA CONTINUING AFTER MIDNIGHT. MODELS INDICATE FRONT AND COOLER AIR WILL SLOWLY MOVE SOUTHWARD OVERNIGHT. THICKNESS PACKING APPEARS TO FINALLY PUSH SOUTH AND EAST OF THE CWA AROUND 06-09Z. THINK PCPN WILL HAVE MOVED EAST OF THE AREA BY THEN. OTHERWISE FORECAST ON TRACK FOR A PLEASANT FRIDAY AS HIGH PRESSURE BUILDS ACROSS THE AREA. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...NONE. GA...NONE. && 77/99
Hazardous weather outlook, Aug 5, 3:27 AM EST, 21 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE COLUMBIA SC 427 AM EDT THU AUG 5 2004 GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-061000- AIKEN SC-BAMBERG SC-BARNWELL SC-BURKE GA-CALHOUN SC-CHESTERFIELD SC- CLARENDON SC-COLUMBIA GA-EDGEFIELD SC-FAIRFIELD SC-KERSHAW SC- LANCASTER SC-LEE SC-LEXINGTON SC-LINCOLN GA-MCCORMICK SC-MCDUFFIE GA- NEWBERRY SC-ORANGEBURG SC-RICHLAND SC-RICHMOND GA-SALUDA SC- SUMTER SC- 427 AM EDT THU AUG 5 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA. .DAY ONE... THE COMBINATION OF HIGH TEMPERATURES AND MODERATE RELATIVE HUMIDITY WILL RESULT IN AFTERNOON HEAT INDEX VALUES OF 100 TO 105 DEGREES. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE LATE THIS AFTERNOON INTO EARLY THIS EVENING AHEAD OF A COLD FRONT. THE MAIN THREAT WILL BE DAMAGING WINDS. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. LCV
The radar
The Columbia radar (KCAE), 71 km away, was scanning. The volume nearest the first event began at 05:48 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Wind in Texas, August 6, 2004
- Tornadoes in South Dakota, August 6, 2004
- Flash Flood and Hail in Texas, August 6 to 7, 2004
- Heavy Rain in Washington, August 6, 2004
- Flash Flood and Hail in South Dakota, August 6, 2004
- Lightning Strike in Washington, August 6, 2004
- Marine Thunderstorm Winds in Gulf of Mexico, August 6, 2004
- Hail and Damaging Wind in Montana, August 6, 2004
- Marine Thunderstorm Wind in Gulf of Mexico, August 6, 2004
- Marine Thunderstorm Wind in Gulf of Mexico, August 6, 2004
- Lightning Strike in Florida, August 6, 2004
- Flash Flood in Arizona, August 6, 2004
More
Every storm in South Carolina in 2004Every state in 2004This day in weather historyWarnings in South Carolina, August 2004
Sources
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 2026-09-24. Each event’s entry at NCEI: 5415738.