Scattered thunderstorms developed in the afternoon hours ahead of an approaching area of low pressure and associated cold front. A few of these thunderstorms became strong enough across southeast South Carolina to produce damaging wind gusts.
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 CHS wrote it up.
Scattered thunderstorms developed in the afternoon hours ahead of an approaching area of low pressure and associated cold front. A few of these thunderstorms became strong enough across southeast South Carolina to produce damaging wind gusts.
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 Sep 25, 3:29 PM EST, 53 minutes earlier.
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</html>PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
323 PM EDT FRI SEP 25 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM HEAVY RAIN CHARLESTON 32.78N 79.94W
09/25/2020 U0.00 INCH CHARLESTON SC SOCIAL MEDIA
FLOODING AT SMITH ST AND MURPHY CT
&&
EVENT NUMBER CHS2000853
RJBPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHARLESTON SC
329 PM EDT FRI SEP 25 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0121 PM HEAVY RAIN CHARLESTON 32.78N 79.94W
09/25/2020 U0.00 INCH CHARLESTON SC SOCIAL MEDIA
FLOODING AT SMITH ST AND MURPHY CT
&&
CORRECTED EVENT TIME
EVENT NUMBER CHS2000853
RJBPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
446 PM EDT FRI SEP 25 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0440 PM HEAVY RAIN SUMMERVILLE 33.02N 80.17W
09/25/2020 U0.00 INCH DORCHESTER SC LAW ENFORCEMENT
FLOODING AT NORTH MAIN ST/17-A AND WEST THIRD NORTH ST
&&
EVENT NUMBER CHS2000854
RJBThe Charleston,SC radar (KCLX), 52 km away, was scanning. The volume nearest the first event began at 21:22 UTC.
1 thunderstorm wind. Local standard time, as filed.
South Carolina Highway Patrol reported a tree down on Jefferies Highway and Branch Avenue.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2020Every state in 2020This day in weather historyWarnings in South Carolina, September 2020
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: 921388.