Flash Flood Warning 25, NWS Columbia, SC

799 
WGUS72 KCAE 271945
FFSCAE

Flash Flood Statement
National Weather Service Columbia SC
345 PM EDT Thu Aug 27 2026

GAC073-245-SCC003-037-272115-
/O.CON.KCAE.FF.W.0025.000000T0000Z-260827T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Columbia GA-Richmond GA-Aiken SC-Edgefield SC-
345 PM EDT Thu Aug 27 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT THIS
AFTERNOON FOR CENTRAL COLUMBIA, CENTRAL RICHMOND, WEST CENTRAL AIKEN
AND SOUTH CENTRAL EDGEFIELD COUNTIES...

At 345 PM EDT, local law enforcement reported thunderstorms producing
heavy rain causing flood waters and debris to cover Gateway Road near
Grovetown, GA. Between 2 and 3 inches of rain have fallen. Additional
rainfall amounts up to 1 inch is possible in the warned area. Flash
flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  North Augusta, Grovetown, Evans, Martinez, Fort Gordon, Belvedere,
  Village Plaza Shopping Center, Augusta Mall, Daniel Field, South
  Augusta, Riverwood, Augusta National Golf Club, Summerville,
  Glendale, Midtown, Bellevue Memorial Gardens, Westmont, Blanchard
  Park and Windy Ridge Estates.

This includes the following highways...
Interstate 20 in South Carolina between mile markers 0 and 5.
Interstate 20 in Georgia between mile markers 182 and 201. Interstate
520 in Georgia between mile markers 1 and 8.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Most flooding deaths occur in vehicles. Never drive through a flooded
roadway or around barricades. Turn around, don't drown.

&&

LAT...LON 3347 8235 3352 8234 3359 8218 3359 8212
      3360 8203 3357 8193 3339 8201 3334 8212
      3337 8223 3341 8229

FLASH FLOOD...OBSERVED

$$

CJR

615 
WGUS72 KCAE 271957
FFSCAE

Flash Flood Statement
National Weather Service Columbia SC
357 PM EDT Thu Aug 27 2026

SCC003-037-272007-
/O.CAN.KCAE.FF.W.0025.000000T0000Z-260827T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Aiken SC-Edgefield SC-
357 PM EDT Thu Aug 27 2026

...FLASH FLOOD WARNING IS CANCELLED FOR WEST CENTRAL AIKEN AND SOUTH
CENTRAL EDGEFIELD COUNTIES...

Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.

&&

LAT...LON 3347 8235 3352 8234 3359 8218 3356 8205
      3349 8202 3342 8203 3338 8205 3334 8212
      3337 8223 3341 8229

$$

GAC073-245-272115-
/O.CON.KCAE.FF.W.0025.000000T0000Z-260827T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Columbia GA-Richmond GA-
357 PM EDT Thu Aug 27 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT THIS
AFTERNOON FOR CENTRAL COLUMBIA AND CENTRAL RICHMOND COUNTIES...

At 357 PM EDT, local law enforcement reported thunderstorms producing
heavy rain causing flood waters and debris to cover Gateway Road near
Grovetown, GA. Between 2 and 3 inches of rain have fallen. Flash
flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Grovetown, Evans, Fort Gordon, Martinez, Village Plaza Shopping
  Center, Augusta Mall, Riverwood, South Augusta, Daniel Field,
  Columbia County Exhibition Center, Bellevue Memorial Gardens,
  Westmont, Blanchard Park, Liberty Park Community Center, Windy
  Ridge Estates, Evans Medical Center, Patriots Park, Evans Towne
  Center Park and Blanchard Woods Park.

This includes the following highways...
Interstate 20 in Georgia between mile markers 182 and 200. Interstate
520 in Georgia between mile markers 1 and 7.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Most flooding deaths occur in vehicles. Never drive through a flooded
roadway or around barricades. Turn around, don't drown.

&&

LAT...LON 3347 8235 3352 8234 3359 8218 3356 8205
      3349 8202 3342 8203 3338 8205 3334 8212
      3337 8223 3341 8229

FLASH FLOOD...OBSERVED

$$

CJR

657 
WGUS72 KCAE 272043
FFSCAE

Flash Flood Statement
National Weather Service Columbia SC
443 PM EDT Thu Aug 27 2026

GAC073-245-272053-
/O.CAN.KCAE.FF.W.0025.000000T0000Z-260827T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Columbia GA-Richmond GA-
443 PM EDT Thu Aug 27 2026

...FLASH FLOOD WARNING IS CANCELLED FOR CENTRAL COLUMBIA AND CENTRAL
RICHMOND COUNTIES...

The heavy rain has ended. Some nuisance flooding and minor roadway
ponding remains possible. Please continue to heed remaining road
closures.

&&

LAT...LON 3352 8234 3359 8218 3356 8205 3349 8202
      3342 8203 3338 8205 3334 8212 3337 8223
      3341 8229 3347 8235

$$

MEG

Area Forecast Discussion
National Weather Service Columbia SC
128 PM EDT Thu Aug 27 2026

.WHAT HAS CHANGED...
No significant changes to the forecast. Aviation discussion
updated for 18Z TAF issuance.

&&

.KEY MESSAGES...
- 1. Thunderstorms expected each day through the weekend with
  seasonable temperatures. Drier conditions and above normal
  temperatures are expected to start next week.

&&

.DISCUSSION...
KEY MESSAGE 1: Thunderstorms expected each day through the
weekend with seasonable temperatures. Drier conditions and above normal
 temperatures are expected to start next week.

The forecast remains on track compared to what we have been
advertising the past few days. We did have some surprise
convection this morning which has diminished across the area.
Cumulus has replaced stratus from earlier, and within a warming
and very moist atmosphere, expecting scattered to numerous
showers and storms to develop this afternoon. Troughing to our
west should help be a weak forcing mechanism, and >2" PWs should
yield heavy, efficient rainfall in the strongest storms. Not
really expecting severe weather today as DCAPE and TEI values
are unimpressive in a very moisture rich atmosphere. Will be
relying primarily on moisture loading for any severe storms. The
persistent trough is forecast to hang around through about
Saturday, with a deep plume of moisture atop the area on Friday
and Saturday still. As a result, scattered to numerous showers
and thunderstorms are expected both days across the forecast
area. High PWs can and should result in continued heavy
rainfall across the area, which has result in parts of the area
being included in a Marginal and Slight Risk for Excessive
Rainfall through Saturday. Flash flooding likely won't be a
widespread issue but storms should be efficient enough at
producing rainfall to make any training or slow movers capable
of flash flooding.

As we get later into the weekend and early next week, confidence
continues to increase in anomalous upper level ridging building
overhead and persisting. This 500 hPa ridge should yield above
normal temperatures beginning Monday and persisting through the
end of the forecast period. It is unlikely that we will see
widespread precipitation to help keep temps down during this
period as upper level subsidence beneath the ridge center should
hold convection mostly at bay. Given this, the potential for
anomalous heat is rising. Highs in the mid to upper 90s appear
possible, as signaled by a pretty robust EFI signal at this
timeframe. Given consistent dewpoints in the 70s, dangerous heat
index values are again forecast to return to the forecast area
during this period, especially Tuesday through Thursday of next
week.

&&

.AVIATION /18Z THURSDAY THROUGH MONDAY/...
Showers and thunderstorms will continue to increase this
afternoon, becoming numerous in coverage into this evening
across the area. TAFs continue to indicate vicinity
thunderstorms through 02Z, with either a PROB30 or TEMPO group
for thunderstorms with some flight restrictions through the
afternoon/early evening. Isolated showers are possible once
again overnight, but confidence is not great enough to include
mention in the TAFs at this time. Another round of ceiling
restrictions and possibly some visibility restrictions will be
possible again later tonight due to the moist low level airmass
and nearby stalled front, so have a period of IFR conditions at
all terminals from about 09-14Z.

EXTENDED AVIATION OUTLOOK... Restrictions possible from showers
and thunderstorms each afternoon through this weekend.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...None.
GA...None.

&&

DISCUSSION...PL
AVIATION...JAQ

Special Weather Statement
National Weather Service Columbia SC
201 PM EDT Thu Aug 27 2026

SCZ027-028-031-037-271830-
Lexington SC-Calhoun SC-Richland SC-Sumter SC-
201 PM EDT Thu Aug 27 2026

...A strong thunderstorm will impact portions of northern Calhoun,
southeastern Lexington, west central Sumter and southeastern Richland
Counties through 230 PM EDT...

At 201 PM EDT, Doppler radar was tracking a strong thunderstorm near
Congaree National Park, or 8 miles southwest of McEntire Air Base,
moving east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
McEntire Air Base, Eastover, Congaree National Park, Gadsden,
Hopkins, and Fort Motte.

This includes Interstate 26 between mile markers 132 and 134.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3370 8092 3387 8099 3401 8068 3375 8057
TIME...MOT...LOC 1801Z 250DEG 15KT 3381 8088

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

JAQ

Special Weather Statement
National Weather Service Columbia SC
210 PM EDT Thu Aug 27 2026

GAZ040-063-064-SCZ018-025-271845-
McDuffie GA-Lincoln GA-Columbia GA-McCormick SC-Edgefield SC-
210 PM EDT Thu Aug 27 2026

...A strong thunderstorm will impact portions of north central
McDuffie, northern Columbia, Lincoln, west central Edgefield and
southeastern McCormick Counties through 245 PM EDT...

At 209 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lincolnton, or 15 miles east of Washington, moving east at 20 mph.

...Boaters on Lake Strom Thurmond Should Seek Safe Harbor...

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
McCormick, Lincolnton, Appling, Clarks Hill Recreation Area, J. Strom
Thurmond Dam, Elijah Clark State Park, Riverwood, Mistletoe State
Park, Hamilton Branch State Park, Parksville, Plum Branch, Winfield,
Modoc, Scott's Landing, Knox Scout Reservation, Double Branches,
Curry Hill, Wildwood Park, Columbia County Jail, and Modoc Boat Ramp.

This includes Interstate 20 in Georgia between mile markers 174 and
177.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3386 8257 3392 8219 3380 8214 3376 8217
      3374 8216 3372 8218 3369 8217 3363 8210
      3360 8211 3359 8210 3349 8247 3364 8254
      3364 8252 3366 8251 3365 8249 3383 8260
TIME...MOT...LOC 1809Z 265DEG 18KT 3376 8247

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

MG

Special Weather Statement
National Weather Service Columbia SC
243 PM EDT Thu Aug 27 2026

SCZ025-030-271915-
Aiken SC-Edgefield SC-
243 PM EDT Thu Aug 27 2026

...A strong thunderstorm will impact portions of southeastern
Edgefield and northwestern Aiken Counties through 315 PM EDT...

At 242 PM EDT, Doppler radar was tracking a strong thunderstorm near
Edgefield County Airport, or 10 miles northeast of Belvedere, moving
east at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Aiken, Citizens Park, Aiken Municipal Airport, USC Aiken,
Graniteville, Trenton, Hopeland Gardens, and Vaucluse.

This includes Interstate 20 in South Carolina between mile markers 8
and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3359 8192 3374 8189 3373 8158 3349 8166
TIME...MOT...LOC 1842Z 282DEG 12KT 3365 8184

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

MG

Special Weather Statement
National Weather Service Columbia SC
251 PM EDT Thu Aug 27 2026

SCZ030-271915-
Aiken SC-
251 PM EDT Thu Aug 27 2026

...A strong thunderstorm will impact portions of south central Aiken
County through 315 PM EDT...

At 251 PM EDT, Doppler radar was tracking a strong thunderstorm over
New Ellenton, or near Aiken Mall, moving northeast at 5 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Aiken, New Ellenton, and Windsor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3343 8179 3356 8164 3343 8146 3340 8149
      3329 8168
TIME...MOT...LOC 1851Z 223DEG 6KT 3341 8169

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

MG