Flash Flood Warning 2, NWS Charleston, SC

731 
WGUS72 KCHS 282143
FFSCHS

Flash Flood Statement
National Weather Service Charleston SC
543 PM EDT Thu May 28 2026

GAC165-251-290000-
/O.CON.KCHS.FF.W.0002.000000T0000Z-260529T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jenkins GA-Screven GA-
543 PM EDT Thu May 28 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR JENKINS AND SCREVEN COUNTIES...

At 543 PM EDT, Doppler radar indicated thunderstorms with torrential
rainfall extending from Herndon and Rogers south to Thrift, Butts and
Emmalane. As much as 4 to 6 inches of rain has fallen in some areas
since 430 PM. An additional 1 to 3 inches could fall through 8 PM.
Flash flooding is likely occurring or will occur shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

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...
  Millen, Butts, Emmalane, Scarboro, Herndon, Four Points, Lincoln
  State Park, Thrift, Jenkins County Hospital and Rogers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep children away from storm drains, culverts, creeks and streams.
Water levels can rise rapidly and sweep children away.

Report flooding directly to the Charleston National Weather Service
at 1-888-383-2024 or email your reports to nws.charlestonsc@noaa.gov.

&&

LAT...LON 3285 8213 3286 8213 3283 8195 3277 8183
      3268 8187 3266 8187 3266 8185 3265 8185
      3261 8200 3261 8201 3266 8208 3282 8215
      3283 8214

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

ST

294 
WGUS72 KCHS 282230
FFSCHS

Flash Flood Statement
National Weather Service Charleston SC
630 PM EDT Thu May 28 2026

GAC165-251-290000-
/O.CON.KCHS.FF.W.0002.000000T0000Z-260529T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jenkins GA-Screven GA-
630 PM EDT Thu May 28 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR JENKINS AND SCREVEN COUNTIES...

At 630 PM EDT, Doppler radar indicated light to moderate rain slowly
weakening over much of western and southern Jenkins County. Between 4
and 6 inches of rain rain fell earlier from Herndon to Butts, Thrift
and Emmalane, which has likely resulted in areas of flash flooding.
Additional flooding is unlikely, but the risk for ongoing flash
flooding, including washed out roadways, continues.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

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...
  Millen, Butts, Emmalane, Scarboro, Herndon, Four Points, Lincoln
  State Park, Thrift, Jenkins County Hospital and Rogers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep children away from storm drains, culverts, creeks and streams.
Water levels can rise rapidly and sweep children away.

Report flooding directly to the Charleston National Weather Service
at 1-888-383-2024 or email your reports to nws.charlestonsc@noaa.gov.

&&

LAT...LON 3285 8213 3286 8213 3283 8195 3277 8183
      3268 8187 3266 8187 3266 8185 3265 8185
      3261 8200 3261 8201 3266 8208 3282 8215
      3283 8214

FLASH FLOOD...RADAR INDICATED

$$

ST

424 
WGUS72 KCHS 282351
FFSCHS

Flash Flood Statement
National Weather Service Charleston SC
751 PM EDT Thu May 28 2026

GAC165-251-290001-
/O.EXP.KCHS.FF.W.0002.000000T0000Z-260529T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jenkins GA-Screven GA-
751 PM EDT Thu May 28 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 8 PM EDT THIS EVENING FOR
JENKINS AND SCREVEN COUNTIES...

Flood waters will continue to recede this evening. The risk for
additional flash flooding has ended. Please continue to heed
remaining road closures.

&&

LAT...LON 3285 8213 3286 8213 3283 8195 3277 8183
      3268 8187 3266 8187 3266 8185 3265 8185
      3261 8200 3261 8201 3266 8208 3282 8215
      3283 8214

$$

ST

Area Forecast Discussion
National Weather Service Charleston SC
221 PM EDT Thu May 28 2026

.WHAT HAS CHANGED...
All sections have been updated. Added a key message for coastal
flooding potential.

&&

.KEY MESSAGES...
- 1) Hot and humid conditions with periods of showers and
  thunderstorms across SE GA/SC today. Locally heavy downpours
  are possible.

- 2) Localized flash flooding is possible mainly across portions
  of Southeast Georgia Friday, then across much of the area
  including the South Carolina Lowcountry Saturday.

- 3) High tide could bring minor inundation of very low lying
  areas along the southern South Carolina coast early Friday
  evening.

&&

.DISCUSSION...
KEY MESSAGE 1: Hot and humid conditions with periods of showers and
thunderstorms across SE GA/SC today. Locally heavy downpours
are possible.

A mid level trough will extend across the mid-Atlantic states
tonight, while ridging gets suppressed to the south. At the surface,
a cold front will sink into the region, likely settling near the
Savannah River by sunrise. Atmosphere remains quite moist with
PWats near or just over 2 inches, which is above the 95th
percentile of climo.

Radar early this afternoon has become more active, with increasing
coverage of showers and thunderstorms. Convection should largely
remain sub-severe, though there is potential for locally heavy
downpours. 12z HREF continues to indicate a 10-30% chance of 3"/3 hr
with a 50-70% of 1"/3 hr, highest over southeast Georgia. A Flood
Advisory, or perhaps even a Flash Flood Warning, cannot be ruled
out.

With the front in the vicinity, showers could linger at times
throughout the night, possibly becoming more focused over southeast
Georgia with time as drier tries to move in from the north.

KEY MESSAGE 2: Localized flash flooding is possible mainly across
portions of Southeast Georgia Friday, then across much of the area,
including the South Carolina Lowcountry, Saturday.

On Friday, a cold front is forecast to slow as it pushes over the
Savannah River, expected to become stationary over SE GA Friday
afternoon. At H5, a broad weaknesses will develop over the Southeast
U.S. Deep moisture convergence will likely develop along the NW to
SE oriented front across SE GA and high resolution guidance
indicates that showers and thunderstorms will rapidly develop across
SE GA from late morning through the afternoon hours. PWATs south of
the front approach 2.25 in, in the 98th percentile with moderate
CAPE in the 1000-1500 J/kg range. Additionally, given the
aforementioned weakness aloft, storm motions will be very slow,
likely around 10 kt or less, especially near the front. The greatest
heavy rainfall threat exists south and west of Savannah, where probs
for greater than 1 inch of rainfall at any given location are around
20-30%. Further north, especially across the SC Lowcountry, moisture
content will be much more limited and rainfall coverage will be much
less.

A relative lull in precip is expected through the overnight hours
Friday night before coverage and intensity increases early Saturday
morning as a shortwave approaches the CWA. With the boundary lifting
a bit into eastern SC, the primary moisture band will be more
effectively cover the area from the Charleston Metro to the Savannah
Metro. With modest storm motions parallel to the front, PWATs still
greater than the 96th percentile, and the increased upper forcing,
there should be widespread convective coverage with some locations
receiving prolonged heavy rainfall. Still a bit far out in time for
the convective allowing models to really resolve the potential
magnitude of the localized precip, but at least a localized flash
flooding threat will exist in proximity to where the front
eventually sets up early Saturday morning through the afternoon.

Precip coverage wanes later Saturday in the wake of the wave aloft
and the surface ridge builds across the area on Sunday, resulting in
widespread isentropic lift through the day, but effectively bringing
an end to the flooding threat.

KEY MESSAGE 3: High tide could bring minor inundation of very low
lying areas along the southern South Carolina coast early Friday
evening.

A period of moderate to breezy northeast winds Friday in combination
with the approaching full moon and apogee will bring elevated high
tide levels Friday, possibly persisting into Saturday. Minor
inundation of very low lying areas of Charleston and Colleton
Counties is possible early Friday evening, with a lesser threat
early Saturday evening.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Prevailing VFR is expected through the 18z TAF cycle, however there
could be brief restrictions in showers and thunderstorms this
afternoon into this evening. A cold front is expected to drop into
the area overnight, which could spur additional convection.
Probabilities of significant direct impacts are too low so kept
mention out of the TAF at this time. As similar to previous nights,
could not rule out some patchy ground fog overnight.

Shower and thunderstorm coverage is expected to increase again after
daybreak Friday, especially at KSAV. Used a PROB30 to address
this potential. At KCHS/KJZI, latest guidance indicates the
front would be south of the terminals with drier conditions
expected so no mention of additional convection at this time.

Extended Aviation Outlook: More periodic flight restrictions are
possible Friday into the weekend as the potential for widespread
showers/thunderstorms increases. In addition, patchy overnight fog
and/or stratus cannot be ruled out after recent rains.

&&

.MARINE...
Through tonight: Southwest winds will persist over the coastal
waters the remainder of the day into the evening with speeds less
than 15 knots. A cold front will drop into the region from the north
tonight towards early Friday morning and with winds turning to the
northeast in its wake. Speeds will begin to increase with some gusts
around 20 kt over the Charleston county waters by around daybreak.
Seas will average 2-3 feet.

Friday through Monday: Breezy NE winds Friday morning along the
South Carolina coast will trend more moderate through the day, while
south of the Savannah River, closer to the quasi-stationary
boundary, winds will be lighter. Another period of breezy northeast
winds arrives in the wake of a cold front pushing south Sunday
morning, with SCAs likely needed into Sunday night. Seas also peak
later Sunday as windswell builds seas to 6-8 ft, greatest across the
offshore SC waters. Marine conditions improve early next week.

Rip Currents: An elevated rip current risk will remain through
Friday with a modest easterly swell around 3 to 4 feet every 8
seconds and sea breeze influences. A moderate risk of rip
currents is in place for all area beaches through Friday.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None.
SC...None.
MARINE...None.

&&

CEB/ETM

Hazardous Weather Outlook
National Weather Service Charleston SC
217 PM EDT Thu May 28 2026

GAZ087-088-099>101-114-115-137-216>219-238>241-SCZ040-042>045-
147>152-291830-
Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-Long-
Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-
Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh-
Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley-
Inland Jasper-Beaufort-Coastal Colleton-Charleston-Coastal Jasper-
Tidal Berkeley-
217 PM EDT Thu May 28 2026

This Hazardous Weather Outlook is for southeast Georgia and
southeast South Carolina.

.DAY ONE...This afternoon and tonight.

See the Graphical Hazardous Weather Outlook for more information
about the following possible hazardous weather:

- Rip Current

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

See the Graphical Hazardous Weather Outlook for more information
about the following possible hazardous weather:

- Coastal Flood
- Rip Current

&&

The Graphical Hazardous Weather Outlook can be found at:
https://www.weather.gov/erh/ghwo/?wfo=chs

Preliminary Local Storm Report
National Weather Service Charleston SC
439 PM EDT Thu May 28 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0437 PM     Rain             Riverside               32.04N  81.00W
05/28/2026  M2.84 inch       Chatham            GA   Mesonet

            Fell between 129 PM and 309 PM.

&&

Event Number CHS2600383

Preliminary Local Storm Report
National Weather Service Charleston SC
440 PM EDT Thu May 28 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0439 PM     Rain             2 N Wilmington Island   32.03N  80.98W
05/28/2026  M2.84 inch       Chatham            GA   Mesonet

            Fell between 119 PM and 329 PM.

&&

Event Number CHS2600384

Preliminary Local Storm Report
National Weather Service Charleston SC
442 PM EDT Thu May 28 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0441 PM     Rain             Wilmington Island       32.01N  80.98W
05/28/2026  M2.82 inch       Chatham            GA   Mesonet

            Fell between 114 PM and 334 PM.

&&

Event Number CHS2600385

Preliminary Local Storm Report
National Weather Service Charleston SC
445 PM EDT Thu May 28 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0404 PM     Lightning        3 S Shadowmoss          32.81N  80.07W
05/28/2026                   Charleston         SC   NWS Employee

            A NWS employee relayed a picture showing a large tree
            limb down on the ground. This was likely caused by a
            lightning strike based on lightning detection network
            data.

&&

Event Number CHS2600386