Alert archive / South Carolina / Tornado Warnings in 2024

Tornado Warning 47, NWS Charleston, SC

September 27, 2024Beaufort County, Colleton County, South Carolina

NWS Charleston, SC issued this tornado warning at Sep 27, 2024, 3:19 AM EDT for Beaufort County, Colleton County, South Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 27, 2024, 3:19 AM EDT (07:19 UTC)
Expired
Sep 27, 2024, 4:00 AM EDT
In force
41 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Beaufort County, SC, Colleton County, SC

The radar

The Charleston,SC radar (KCLX), 58 km from the middle of the area, began a volume at 07:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 26, 8:56 PM EDTTornado WatchSPC11 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 7.3 hours before the alert went out and 60 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2024-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 349 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 00:00Z on 2024-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 289 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
349 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
666 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
289 m²/s²
0-3 km storm-relative helicity
372 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted.

277 
WFUS52 KCHS 270719
TORCHS
SCC013-029-270800-
/O.NEW.KCHS.TO.W.0047.240927T0719Z-240927T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Charleston SC
319 AM EDT Fri Sep 27 2024

The National Weather Service in Charleston has issued a

* Tornado Warning for portions of...
  Beaufort County in southeastern South Carolina...
  Colleton County in southeastern South Carolina...

* Until 400 AM EDT.

* At 319 AM EDT, a severe thunderstorm capable of producing a 
  tornado was located near Fripp Island, moving north at 70 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught
           without shelter. Mobile homes will be damaged or
           destroyed. Damage to roofs, windows and vehicles will
           occur. Tree damage is likely.

* Locations impacted include...
  Bennetts Point, Ashepoo, Green Pond, Fripp Island, White Hall, 
  Wiggins, Chisolm Point, Coosaw Island, Sams Point and Eddings 
  Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

Tornadoes are difficult to observe at night. Take cover now!

Tornadoes from tropical storms or hurricanes can form and move very 
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a 
tornado, it could be too late. Take action now to protect yourself.

&&

LAT...LON 3272 8075 3279 8048 3263 8041 3263 8043
      3261 8042 3262 8040 3260 8039 3257 8039
      3255 8042 3251 8036 3244 8032 3241 8035
      3245 8040 3245 8042 3240 8040 3235 8042
      3231 8041 3229 8042 3229 8046 3226 8053
TIME...MOT...LOC 0718Z 162DEG 59KT 3232 8043

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

NED
4 follow-up statements
876 
WWUS52 KCHS 270728
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
328 AM EDT Fri Sep 27 2024

SCC013-029-270800-
/O.CON.KCHS.TO.W.0047.000000T0000Z-240927T0800Z/
Beaufort SC-Colleton SC-
328 AM EDT Fri Sep 27 2024

...TORNADO WARNING REMAINS IN EFFECT UNTIL 4 AM EDT FOR BEAUFORT AND 
COLLETON COUNTIES...

At 328 AM EDT, a severe thunderstorm capable of producing a tornado 
was located 5 miles south of Bennetts Point, moving north at 70 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed.
         Damage to roofs, windows and vehicles will occur. Tree
         damage is likely.

Locations impacted include...
  Bennetts Point, Ashepoo, Green Pond, White Hall, Wiggins, Chisolm 
  Point, Coosaw Island, Fenwick, Sams Point and Eddings Point.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

Tornadoes are difficult to observe at night. Take cover now!

Tornadoes from tropical storms or hurricanes can form and move very 
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a 
tornado, it could be too late. Take action now to protect yourself.

&&

LAT...LON 3272 8075 3279 8048 3263 8041 3263 8043
      3261 8042 3260 8042 3262 8040 3260 8039
      3259 8040 3257 8039 3255 8042 3251 8036
      3244 8032 3241 8035 3245 8040 3245 8042
      3240 8040 3238 8044 3237 8058
TIME...MOT...LOC 0719Z 164DEG 58KT 3234 8042

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

NED
775 
WWUS52 KCHS 270737
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
337 AM EDT Fri Sep 27 2024

SCC013-270747-
/O.CAN.KCHS.TO.W.0047.000000T0000Z-240927T0800Z/
Beaufort SC-
337 AM EDT Fri Sep 27 2024

...TORNADO WARNING IS CANCELLED FOR BEAUFORT COUNTY...

The storm which prompted the warning has moved out of the area. 
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 AM EDT Friday for a 
portion of southeast South Carolina.

&&

LAT...LON 3257 8055 3256 8056 3259 8059 3266 8068
      3266 8067 3267 8067 3267 8070 3272 8075
      3279 8048 3263 8041 3263 8043 3262 8043
      3260 8042 3262 8040 3260 8039 3259 8040
      3257 8039 3253 8047 3253 8052
TIME...MOT...LOC 0728Z 164DEG 58KT 3249 8047

$$


SCC029-270800-
/O.CON.KCHS.TO.W.0047.000000T0000Z-240927T0800Z/
Colleton SC-
337 AM EDT Fri Sep 27 2024

...TORNADO WARNING REMAINS IN EFFECT UNTIL 4 AM EDT FOR COLLETON 
COUNTY...

At 337 AM EDT, a severe thunderstorm capable of producing a tornado 
was located 6 miles northwest of Bennetts Point, moving north at 70 
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed.
         Damage to roofs, windows and vehicles will occur. Tree
         damage is likely.

Locations impacted include...
  Ashepoo, Green Pond, Bennetts Point, White Hall, Wiggins and 
  Fenwick.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

Heavy rainfall is hiding this tornado. Do not wait to see or hear 
the tornado. Take cover now!

Tornadoes are difficult to observe at night. Take cover now!

Tornadoes from tropical storms or hurricanes can form and move very 
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a 
tornado, it could be too late. Take action now to protect yourself.

&&

LAT...LON 3257 8055 3256 8056 3259 8059 3266 8068
      3266 8067 3267 8067 3267 8070 3272 8075
      3279 8048 3263 8041 3263 8043 3262 8043
      3260 8042 3262 8040 3260 8039 3259 8040
      3257 8039 3253 8047 3253 8052
TIME...MOT...LOC 0728Z 164DEG 58KT 3249 8047

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

NED
105 
WWUS52 KCHS 270743
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
343 AM EDT Fri Sep 27 2024

SCC029-270800-
/O.CON.KCHS.TO.W.0047.000000T0000Z-240927T0800Z/
Colleton SC-
343 AM EDT Fri Sep 27 2024

...TORNADO WARNING REMAINS IN EFFECT UNTIL 4 AM EDT FOR COLLETON 
COUNTY...

At 343 AM EDT, a severe thunderstorm capable of producing a tornado 
was located over Ashepoo, moving north at 70 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed.
         Damage to roofs, windows and vehicles will occur. Tree
         damage is likely.

Locations impacted include...
  Ashepoo and Green Pond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

Heavy rainfall is hiding this tornado. Do not wait to see or hear 
the tornado. Take cover now!

Tornadoes are difficult to observe at night. Take cover now!

Tornadoes from tropical storms or hurricanes can form and move very 
quickly. TAKE COVER IMMEDIATELY! If you wait until you hear a 
tornado, it could be too late. Take action now to protect yourself.

&&

LAT...LON 3268 8063 3274 8066 3279 8048 3271 8047
      3268 8048 3266 8048 3265 8050 3265 8060
TIME...MOT...LOC 0737Z 164DEG 58KT 3263 8052

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

NED
613 
WWUS52 KCHS 270756
SVSCHS

Severe Weather Statement
National Weather Service Charleston SC
356 AM EDT Fri Sep 27 2024

SCC029-270806-
/O.EXP.KCHS.TO.W.0047.000000T0000Z-240927T0800Z/
Colleton SC-
356 AM EDT Fri Sep 27 2024

...TORNADO WARNING WILL EXPIRE AT 4 AM EDT FOR COLLETON COUNTY...

The storm which prompted the warning has moved out of the area. 
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 800 AM EDT Friday for a 
portion of southeast South Carolina.

&&

LAT...LON 3268 8063 3274 8066 3279 8048 3271 8047
      3268 8048 3266 8048 3265 8050 3265 8060
TIME...MOT...LOC 0743Z 164DEG 58KT 3273 8055

$$

NED

What forecasters said that day

The local office's own words before this tornado warning went out, 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 this tornado warning went out at Sep 27, 2:47 AM EDT, 32 minutes earlier.

Area forecast discussion, Sep 27, 2:47 AM EDT, 32 minutes before
Area Forecast Discussion
National Weather Service Charleston SC
247 AM EDT Fri Sep 27 2024

.SYNOPSIS...
Hurricane Helene is forecast to move inland across portions of
Georgia tonight into Friday. Multiple impacts are expected
across our area through tonight. Drier weather then arrives
later Friday and persists into next week.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
Tonight: The upper air pattern features a large cutoff low in the
vicinity of the Middle Mississippi Valley area, while a strong
anticyclone is across the western Atlantic, centered west of
Bermuda. The southerly flow between these two features will steer
Helene, which made landfall as a Category 4 Hurricane in the Florida
Big Bend earlier tonight, north over Georgia during the remainder of
the night. Helene will likely to remain at hurricane strength as it
moves across Georgia, even as it draws closer to the Atlantic by
daybreak.

Given the speed of Helene, strong winds are expected further inland
than typical. Additionally, wind fields will expand as Helene gains
latitude, producing impacts well east of its center. For this
reason, a Tropical Storm Warning remains in effect for the entire
forecast area through the night, including across nearby coastal
waters. The latest forecast will keep Southeast Georgia and
Southeast South Carolina along Helene's eastern side throughout the
night, bringing multiple hazards to the immediate area. For full
details, please refer to weather.gov/chs and the Hurricane Local
Statement (HLS).

Tornadoes: A Tornado Watch remains in effect for all counties and
the adjacent coastal waters through 8 AM. Long, looping hodographs
will occur in advance of Helene for much of the night. 0-1 km SRH is
forecast to reach as much as 250-400 m2/s2, with impressive STP and
SCP values. There is also evidence of dry air wrapping around
Helene, which could enhance the tornadic risk. Additionally, the
latest HREF run gives a fairly strong indication of updraft helicity
tracks supportive of tornadic waterspouts that shift onshore,
coinciding with rainbands associated with Helene that slowly
progress across Southeast Georgia into Southeast South Carolina for
the rest of the night. The latest SPC Day 1 Convective Outlook
includes an Enhanced Risk for severe weather across the majority of
the local forecast area, with 10% tornado probabilities driving the
bulk of the risk. While any tornado is a dangerous situation, those
that occur at night, when most people are sleeping, is an even worse
situation. Have a tornado plan in place in case a warning is issued.
Keep in mind that tropical tornadoes can form with little advance
warning, move very quickly (potentially in excess of 35 to 45 mph),
and will be hard to see due to the night time conditions and the
potential that they will be rain-wrapped.

Winds: A Tropical Storm Warning is in effect for the entire forecast
area. Tropical storm force winds are expected to occur across
Southeast Georgia and expand into Southeast South Carolina and
adjacent coastal waters tonight. Wind speeds should peak late
tonight as the center of Helene moves across central Georgia. Gusty
winds as high as 45 to 65 mph could produce downed and/or uprooted
trees, isolated to scattered power outages locally, with greatest
impacts anticipated during the night.

Flooding Rainfall: Multiple rounds of showers/rainbands and a few t-
storms in association with Helene will impact the area through the
night, before considerably drier air wraps around the southern edge
of departing Helene and overtakes the entire forecast area by around
daybreak Friday. Additional rainfall amounts of 1 to 2 inches will
occur tonight, but with locally higher amounts possible in heavy
rainbands. Minor flooding of low-lying and poor drainage areas is
likely in some locations with isolated flash flooding possible.
Urban flooding is also a possibility. The risk for flooding may
become locally enhanced near and at the coast during the time of
high tide. Area rivers and creeks will rise in response to the
rainfall, with some flooding possible, even after the rains come to
an end.

Storm Surge: The latest forecast has storm surge values in the 1 to
3 foot range. As such, coastal flood products might be required at a
later time. Additional information can be found in the Tides/Coastal
Flooding section below.

Temperatures: It'll be a very warm and humid night, and we could be
close to record high minimums for September 26.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH SUNDAY/...
Broad cutoff low will be in place across the south/southeast U.S.
Friday morning with the circulation of Helene (forecast to still be
a TS Friday morning) migrating up through northwestern Georgia and
becoming absorbed by the larger scale cutoff. Strong subsidence and
dry air wrapping along the southern/southeastern side of the broader
circulation should lead to rather quick ending of precip, early to
mid Friday morning, and there will likely be a fairly quick S-N
decrease in cloud cover with skies trending mainly sunny by
afternoon. But augmented by clearing and subsequent mixing, tropical
storm force gusts will linger through the morning hours with gusts
of 40 to 50 mph likely, diminishing to 20 to 30 mph through the
afternoon hours.

Otherwise, in the wake of Helene, warm temperatures and somewhat
humid conditions will persist on Friday with highs in the middle to
upper 80s and dewpoints in the lower to middle 70s, and peak heat
index values in the upper 80s to middle 90s. Not great for those
that may be without power.

Through the weekend: Remnant low of Helene will continue to get
absorbed into the larger scale cutoff low with the combined larger
scale circulation center remaining somewhat fixed over the
Kentucky/Tennessee region into Sunday. System is expected to then
weaken and elongate to the mid Atlantic into early next week. Across
our area, we stay on the warm (mid to upper 80s for highs) and
somewhat humid side through the weekend, although there may be a
subtle decrease in dewpoints/heat index values for Saturday and
Sunday.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As mentioned, vertically stacked system will continue to weaken and
elongate to the mid Atlantic coast early next week before finally
moving off the coast by midweek. Weak low pressure lingers across
the region through the early part of the week and could lead to a
few showers through early week largely tied to the diurnal heating
cycle. Surface high pressure will gain a foothold on the southeast
region for the mid to late week period. Daytime high temperatures
will continue to run a bit above normal...in the mid to upper 80s.

&&

.AVIATION /07Z FRIDAY THROUGH TUESDAY/...
KCHS/KJZI/KSAV: Numerous to widespread showers and a few TSRA
associated with Helene will impact all terminals tonight,
before rapid drying takes place on Friday. Flight restrictions
will occur through the tonight timeframe as rounds of showers
and some thunderstorms move through, generally down in the MVFR
range for both cigs and vsbys. IFR conditions remain possible
at times, especially during heavier rains.

SE winds will steadily as we go through tonight, peaking as
high as 35 or 40 kt sustained with gusts of at least 50 to 55 kt,
with the peak winds occurring largely between 06Z and 14Z Friday.
Higher wind gusts are possible. Winds will veer around to the S
or SSW during the day on Friday, with winds still as high as
20-30 kt through the day. During the night, S or SSW winds
should gradually decreasing to the 10-20 kt range.

Finally, LLWS remains at all three terminal sites, although
given the strong gusty surface winds, LLWS may not truly come to
fruition.

One side note is that conditions remain favorable for isolated
tornadoes across southern South Carolina and southeast Georgia
through tonight.

Extended Aviation Outlook: Prevailing VFR, though with persistent
elevated low level moisture and a strong subsidence inversion,
will need to monitor for morning radiation fog and afternoon
MVFR strato-cu potential through the long term.

&&

.MARINE...
Tonight: Dangerous conditions will impact the Atlantic waters
and Charleston Harbor as Hurricane Helene tracks north across
Georgia. Winds will steadily increase as Helene gains latitude
and the wind fields expand northeastward to cover our local
waters. Winds speeds tonight will peak as high as 50-55 kt in
gusts, locally even near 60 kt. Tropical Storm Warnings will
remain in effect for all local waters as a result. These winds
will allow for seas to build as high as 10-15 feet on the waters
out 20 nm, and up to 17 feet on the Georgia waters beyond 20 nm
from shore.

Mariners are also alerted to the risk for waterspouts through
much of the night, as convective bands move through the area in
association with Helene. Some of these will be tornadic
waterspouts, moving much quicker and producing much stronger
winds than most waterspouts in our area.

Extended marine: Very large, medium period swell associated
with the large wind field of Helene peaks Friday morning,
gradually subsiding into the weekend. Near Tropical Storm Force
winds early Friday morning will subside to more moderate winds
by Friday afternoon as well. Light to moderate winds persist
Friday night into early next week as high pressure moves
overhead and more seasonable 2-3 ft seas prevail.

Rip Currents and High Surf: Conditions at the beach will be
dangerous tonight through Friday, as winds and seas continue to
build in response to Hurricane Helene tracking across the
northeast Gulf of Mexico and into the interior of the Southeast.
A High Risk of Rip Currents will be in effect for all
beaches through Friday. Breakers will reach at least 5 feet in
height through Friday, and as result, a High Surf Advisory
remains in effect. Areas of significant beach erosion are also
likely during this time.

&&

.TIDES/COASTAL FLOODING...
Latest trends indicate approximately 2.0 ft departures in the
Charleston Harbor and near 3.0 ft departures at Ft Pulaski since low
tide. These departures along with the continuation of strong onshore
winds will favor minor coastal flooding during the upcoming high
tide (~4:36 AM in the Charleston Harbor and ~4:46 AM at Ft Pulaski
this morning). As a result, a Coastal Flood Advisory has been issued
for the entire coast through 7 AM this morning.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...Tropical Storm Warning for GAZ087-088-099>101-114>119-137>141.
     High Risk for Rip Currents through this evening for GAZ117-119-139-
     141.
     High Surf Advisory until 8 PM EDT this evening for GAZ117-119-
     139-141.
     Coastal Flood Advisory until 7 AM EDT this morning for GAZ117-
     119-139-141.
SC...Tropical Storm Warning for SCZ040-042>045-047>052.
     High Risk for Rip Currents through this evening for SCZ048>051.
     High Surf Advisory until 8 PM EDT this evening for SCZ048>051.
     Coastal Flood Advisory until 7 AM EDT this morning for
     SCZ048>051.
MARINE...Tropical Storm Warning for AMZ330-350-352-354-374.
&&

NEAR TERM...
SHORT TERM...
LONG TERM...
AVIATION...
MARINE...
Hazardous weather outlook, Sep 26, 9:17 PM EDT, 6 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Charleston SC
917 PM EDT Thu Sep 26 2024

GAZ087-088-099>101-114>116-118-137-138-140-SCZ040-042>045-047-052-
280130-
Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-
Inland Bryan-Inland Chatham-Long-Inland Liberty-Inland McIntosh-
Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley-
Inland Jasper-Tidal Berkeley-
917 PM EDT Thu Sep 26 2024

...TORNADO WATCH 687 IN EFFECT UNTIL 8 AM EDT FRIDAY...
...TROPICAL STORM WARNING IN EFFECT...

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

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Tropical Storm Warning.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Tropical Storm Warning.

Tropics: Rainbands associated with Tropical Cyclone Helene will
remain into early Friday. These rainbands will bring the potential
for heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

AMZ330-350-352-354-374-280130-
Charleston Harbor-
Waters from South Santee River to Edisto Beach SC out 20 NM-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
917 PM EDT Thu Sep 26 2024

...TORNADO WATCH 687 IN EFFECT UNTIL 8 AM EDT FRIDAY...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Tropical Storm Warning.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Tropical Storm Warning.

Tropics: Rainbands associated with Tropical Cyclone Helene will
remain into early Friday. These rainbands will bring the potential
for reduced visibility in heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

GAZ117-119-139-141-SCZ048>051-280130-
Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh-
Beaufort-Coastal Colleton-Charleston-Coastal Jasper-
917 PM EDT Thu Sep 26 2024

...TORNADO WATCH 687 IN EFFECT UNTIL 8 AM EDT FRIDAY...
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM EDT FRIDAY...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH FRIDAY EVENING...
...TROPICAL STORM WARNING IN EFFECT...

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

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   High Risk for Rip Currents.
   High Surf Advisory.
   Tropical Storm Warning.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   High Risk for Rip Currents.
   High Surf Advisory.
   Tropical Storm Warning.

Tropics: Rainbands associated with Tropical Cyclone Helene will
remain into early Friday. These rainbands will bring the potential
for heavy rainfall. Additionally, coastal flooding, high surf, and
an enhanced risk for rip currents is possible along the coast.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

In the hours before

Local storm report, Sep 27, 3:02 AM EDT, 17 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
302 AM EDT Fri Sep 27 2024

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

0230 AM     Tropical Cyclone 1 NE Robertville        32.59N  81.18W
09/27/2024                   Jasper             SC   Dept of Highways

            South Carolina Highway Patrol reported a tree down on
            Gillison Branch Road due to Hurricane Helene.

&&

Event Number CHS2401217

ACD
Local storm report, Sep 27, 3:03 AM EDT, 16 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
303 AM EDT Fri Sep 27 2024

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

0231 AM     Tropical Cyclone 2 ESE Hardeeville       32.28N  81.05W
09/27/2024                   Jasper             SC   Dept of Highways

            South Carolina Highway Patrol reported a tree down on
            Pine Arbor Road due to Hurricane Helene.

&&

Event Number CHS2401218

ACD
Local storm report, Sep 27, 3:05 AM EDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
305 AM EDT Fri Sep 27 2024

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

0234 AM     Tropical Cyclone Gillisonville           32.61N  81.00W
09/27/2024                   Jasper             SC   Dept of Highways

            South Carolina Highway Patrol reported a tree down on
            Grays Highway due to Hurricane Helene.

&&

Event Number CHS2401219

ACD
Local storm report, Sep 27, 3:07 AM EDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
307 AM EDT Fri Sep 27 2024

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

0239 AM     Tropical Cyclone 2 N Yemassee            32.72N  80.85W
09/27/2024                   Hampton            SC   Dept of Highways

            South Carolina Highway Patrol reported a tree down on
            I-95 due Hurricane Helene.

&&

Event Number CHS2401220

ACD
Local storm report, Sep 27, 3:09 AM EDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
309 AM EDT Fri Sep 27 2024

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

0300 AM     Tropical Cyclone 2 NW Walterboro         32.93N  80.68W
09/27/2024                   Colleton           SC   Emergency Mngr

            Colleton County Emergency Manager reported a tree down
            on 10739 Bells Highway due to Hurricane Helene.

&&

Event Number CHS2401221

ACD
Local storm report, Sep 27, 3:17 AM EDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service Charleston SC
317 AM EDT Fri Sep 27 2024

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

0302 AM     Tropical Cyclone 4 NNE Walterboro        32.96N  80.64W
09/27/2024                   Colleton           SC   Emergency Mngr

            Colleton County Emergency Manager reported a tree down
            on Lakeshore Drive and Pulis Road due to Hurricane
            Helene.

&&

Event Number CHS2401222

ACD

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 26, 8:02 PM EDTTornado WarningCHSColleton43 min
Sep 26, 8:42 PM EDTTornado WarningCHSBeaufort, Jasper33 min
Sep 26, 9:10 PM EDTTornado WarningCHSJasper35 min
Sep 26, 9:40 PM EDTTornado WarningCHSCharleston, Colleton35 min
Sep 26, 9:50 PM EDTTornado Warning Tornado observedCHSBeaufort, Jasper25 min
Sep 26, 10:15 PM EDTTornado WarningCHSBeaufort, Jasper27 min
Sep 26, 10:36 PM EDTTornado WarningCHSHampton, Jasper39 min
Sep 26, 10:49 PM EDTTornado WarningCHSAllendale26 min
Sep 26, 10:57 PM EDTTornado WarningCHSAllendale, Hampton, Jasper32 min
Sep 27, 12:07 AM EDTTornado WarningCHSCharleston, Colleton23 min
Sep 27, 12:28 AM EDTTornado WarningCHSCharleston, Colleton32 min
Sep 27, 12:58 AM EDTTornado Warning Tornado observedCHSBeaufort38 min
Sep 27, 1:46 AM EDTTornado Warning Tornado observedCHSBeaufort15 min
Sep 27, 2:00 AM EDTCoastal Flood AdvisoryCHS6 hr
Sep 27, 2:53 AM EDTTornado WarningCHSCharleston, Colleton22 min
Sep 27, 3:42 AM EDTTornado WarningCHSCharleston48 min
Sep 27, 3:48 AM EDTTornado WarningCHSColleton20 min
Sep 27, 4:00 AM EDTTornado WarningCHSCharleston23 min
Sep 27, 4:30 AM EDTTornado WarningCHSBerkeley, Charleston, Dorchester36 min
Sep 27, 4:36 AM EDTTornado WarningCHSCharleston24 min
Sep 27, 4:53 AM EDTTornado WarningCHSCharleston23 min
Sep 27, 4:54 AM EDTTornado WarningCHSDorchester18 min
Sep 27, 5:08 AM EDTTornado WarningCHSBerkeley, Dorchester18 min
Sep 27, 5:18 AM EDTTornado WarningCHSCharleston19 min
Sep 27, 5:47 AM EDTTornado WarningCHSBerkeley, Charleston13 min
Sep 27, 5:50 AM EDTTornado WarningCHSBerkeley34 min
Sep 27, 5:54 AM EDTFlash Flood Warning Considerable damage threatCHSBerkeley, Charleston6 hr
Sep 27, 6:16 AM EDTTornado WarningCHSBerkeley, Charleston29 min
Sep 27, 7:25 AM EDTTornado WarningCHSBerkeley, Charleston16 min
Sep 27, 12:23 PM EDTWind AdvisoryCHSAllendale, Berkeley, Colleton, Dorchester, Hampton7 hr
Sep 27, 3:21 PM EDTWind AdvisoryCHSAllendale, Berkeley, Colleton, Dorchester, Hampton4 hr

Nearby

Tornado Warnings in South Carolina, 2024Every tornado warning in 2024Tornadoes in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.