A very hot and humid atmosphere was present under Atlantic high pressure. A lee side trough developed over the Midlands in South Carolina before shifting east towards the Atlantic Ocean.
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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 CHS wrote it up.
A very hot and humid atmosphere was present under Atlantic high pressure. A lee side trough developed over the Midlands in South Carolina before shifting east towards the Atlantic Ocean. Forcing from this trough was enough to promote a few strong thunderstorms with damaging winds.
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 Charleston, SC wrote its last area forecast discussion before the first event at Jun 13, 8:05 PM EST, 45 minutes earlier.
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</html>SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
513 PM EDT SUN JUN 13 2010
GAZ137-140-141-132145-
COASTAL MCINTOSH-INLAND MCINTOSH-LONG-
513 PM EDT SUN JUN 13 2010
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF LONG AND MCINTOSH
COUNTIES THROUGH 545 PM EDT...
AT 510 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR HUXFORD...MOVING SOUTHEAST AT 5 MPH.
SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
COX...EULONIA...JONES...PINE HARBOR...TIBET AND TOWNSEND...
PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FREQUENT CLOUD-TO-GROUND LIGHTNING IS OCCURRING. POSTPONE OUTDOOR
ACTIVITIES PROMPTLY. SEEK SHELTER INSIDE AN ENCLOSED BUILDING.
&&
LAT...LON 3143 8161 3147 8162 3150 8166 3154 8167
3155 8169 3156 8170 3170 8156 3155 8133
3153 8134 3149 8142 3139 8156
TIME...MOT...LOC 2113Z 311DEG 6KT 3157 8155<!doctype html>
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</html>The Columbia radar (KCAE), 105 km away, was scanning. The volume nearest the first event began at 01:49 UTC.
1 thunderstorm wind. Local standard time, as filed.
A 61 knot wind gust was measured at an observation site 2 miles north northwest of Eadytown on the south side of the Lake Marion Spillway.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2010Every state in 2010This day in weather historyWarnings in South Carolina, June 2010
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 2026-10-01. Each event’s entry at NCEI: 238328.