Debby first developed into a tropical storm about 100 miles west-southwest of Key West, Florida late afternoon on August 3rd, then gradually strengthened to a strong tropical storm while tracking north across the eastern Gulf of Mexico on August 4th. Debby then reached hurricane force strength late on August 4th about 100 miles west-northwest of Tampa, before continuing a north-northeast track…
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Debby first developed into a tropical storm about 100 miles west-southwest of Key West, Florida late afternoon on August 3rd, then gradually strengthened to a strong tropical storm while tracking north across the eastern Gulf of Mexico on August 4th. Debby then reached hurricane force strength late on August 4th about 100 miles west-northwest of Tampa, before continuing a north-northeast track across the eastern Gulf of Mexico and eventually making landfall near the Big Bend area of Florida as a Category 1 Hurricane during the morning of August 5th. Debby continued inland and weakened to a tropical storm while tracking northeast across northern Florida later on August 5th, then continued a gradual weakening trend while tracking across Southeast Georgia as a tropical storm (45 mph) before slowly emerging off the Southeast Coast at tropical storm strength (40 mph) near Tybee Island, Georgia on August 6th. Debby then tracked east and farther offshore early August 7th, then turned north and became a strong tropical storm (60 mph) over the Gulf Stream later that morning, before taking a more north-northwest track back toward the Southeast Coast and making landfall near Awendaw/Bulls Bay, South Carolina as a tropical storm (50 mph) around 2 AM on August 8th. A minimum surface pressure of 994 mb was recorded at Sullivan’s Island (XSLV), South Carolina prior to Debby making landfall. After landfall, Debby continued on a north-northwest track across South Carolina as a tropical storm into mid day August 8th, before weakening to a depression later that day and continuing a north path across North Carolina and Virginia into early August 9th.
Across Southeast South Carolina, the main impacts associated with Debby included flash flooding due to widespread heavy rainfall, several nighttime tornadoes within rainbands and scattered tree damage associated with near tropical storm force winds.
Prolonged heavy rainfall across Southeast South Carolina brought widespread flash flooding on August 5th and 6th, additional areas of flash flooding on August 7th, 8th and 9th, along with considerable and prolonged flooding of creeks, streams and main stem rivers for several days thereafter. Numerous homes and roads were flooded, leading to rescues and/or evacuations. Storm total rainfall amounts from August 4th to August 9th generally ranged between 4 to 22 inches with highest amounts across the Quad County Area (Berkeley, Dorchester, Charleston, Colleton) and particularly along a stretch from Summerville, Ridgeville, St George and Harleyville, South Carolina to Moncks Corner, South Carolina. A peak storm total rainfall of 22.02 inches was recorded by a CoCoRaHS observer approximately 6.6 miles southwest of Moncks Corner, South Carolina. A daily record rainfall of 4.71 inches was also set on August 6th at the Charleston International Airport (KCHS). Despite a large amount of rain and flash flooding, storm surge/coastal flooding did not lead to mentionable impacts locally. The highest water level at the Charleston (CHTS1) tide gauge was 1.06 ft MHHW during the evening of August 5th. No injuries or fatalities occurred with flash flooding/flooding.
Several rainbands associated with Debby brought 8 tornadoes (4 EF1 and 4 EF0) across coastal counties of Southeast South Carolina during the night of August 5th into early August 6th, causing damage to numerous trees and many structures. An EF1 tornado in Berkeley County caused 2 minor injuries when a car was flipped by the tornado. A total of 2 minor injuries and no fatalities occurred with tornadoes.
Tropical storm force winds/gusts produced scattered tree damage and communication/power outages across several counties. One minor injury occurred when a tree fell down on a vehicle in Beaufort County, South Carolina. Strongest winds were recorded across coastal areas and nearby coastal waters. The highest sustained tropical storm wind (39 knots) and highest tropical storm wind gust (55 knots) occurred at Folly Beach South End (XFSE), South Carolina. Across nearby coastal waters, the highest sustained tropical storm wind (44 knots) and highest tropical storm wind gust (51 knots) occurred at the Edisto Buoy (41004). A total of 1 minor injury and no fatalities occurred by tropical cyclone 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 Aug 5, 9:56 AM EST, 47 minutes earlier.
Area Forecast Discussion
National Weather Service Charleston SC
1056 AM EDT Mon Aug 5 2024
...DEBBY TO BRING POTENTIALLY HISTORIC AND CATASTROPHIC FLOODING TO
THE AREA THIS WEEK..
.SYNOPSIS...
Tropical Storm Debby will impact the region through much of the
week. Potentially historic rainfall amounts will likely result
in severe to catastrophic flash flooding.
&&
.NEAR TERM /THROUGH TONIGHT/...
The forecast is pretty much on track other than incorporating
the latest NHC track on Debby in the gridded forecasts. Based on
the 11 AM advisory probabilities, the Tropical Storm Watch for
Candler, Bulloch and Effingham has been upgraded to a Tropical
Storm Warning.
Shear profiles from KCLX VWP show conditions are slowly becoming
increasingly favorable for tornadoes and waterspouts. A few
rotating couplets have already been observed off the Georgia
coast. Expect Tornado Watches will be expanded into southern
South Carolina later this afternoon as Tropical Storm Debby
draws closer.
Today and Tonight: Weather impacts experienced locally will be
highly dependent on the overall track/position of Debby. The latest
NHC forecast brings Debby across the Florida Panhandle this morning
and early afternoon, then slowing it down while tracking north-
northeast into Southern and Southeast Georgia mid afternoon into the
evening due to weak steering flow in place. This track will place
much of the the local area in the northeast quadrant of Debby as it
approaches from the south/southwest throughout the day, leading to
warm onshore flow and a large plume of tropical moisture advecting
across the area. The environment will be primed for a heavy rainfall
event, starting as early as late morning/early afternoon and
eventually an isolated tornado threat late day and overnight.
Latest radar trends indicate broad outer rainbands associated with
Debby crossing the Altamaha River early morning, with additional
showers pushing onshore across coastal areas, including north into
Southeast South Carolina by late morning. Precip coverage and
intensity is anticipated to increase and spread inland throughout
the day, with the bulk of the area experiencing numerous to
widespread showers and thunderstorms mid to late afternoon. With
PWATS approaching 2.5 inches, heavy rainfall continues to be of
high confidence and also the highest impact anticipated from
Debby. Numerous rounds of intense rainfall are possible across
the region, with an increasing threat for flash flooding heading
into tonight as Debby makes a closer approach and slows. A
Flood Watch continues across the entire area today and tonight.
For more details regarding the rainfall forecast and associated
impacts see the Hydrology section below.
Debby will also bring the potential for tornadoes in the more
favorable northeast quadrant of the system. Latest guidance
indicates an instability and shear axis developing across Georgia
coastal waters and into southern most zones of Southeast Georgia by
late morning, leading to an isolated risk of a tornado near coastal
Georgia initially and perhaps across locations further inland along
and south of I-16. Given the potential, a Tornado Watch has been
issued for this area until 4 PM today.
A more substantial tornado risk should occur late day and overnight
when a more pronounced instability and shear axis develops in the
same area, then moves north with a second wave of showers and
thunderstorms as Debby nears. Although the risk for tornadoes could
extend slightly inland depending on the track of Debby, the greatest
risk appears to be across coastal Georgia, then into southern
coastal South Carolina through the night, which is aligned with the
HREF updraft helicity tracks/ensemble paintball. An additional
Tornado Watch could eventually be needed.
A Tropical Storm Warning will remain in effect for the southeast
Georgia and Southeast South Carolina coast, including much of
Southeast Georgia along and south of I-16. A Tropical Storm Watch
will continue for another tier of counties north in Southeast
Georgia, which could eventually be transitioned to a Tropical Storm
Warning. Refer to the latest Hurricane Local Statement (HLS product)
for the latest on current watches and warnings locally.
&&
.SHORT TERM /TUESDAY THROUGH THURSDAY/...
The latest NHC track indicates the center of Debby would be over
southeast Georgia at the start of the period. Debby is expected to
move offshore Tuesday afternoon and meander nearby Wednesday into
Thursday. The longer residence time over the Atlantic could have it
strengthening some before making landfall again along the South
Carolina coast later Thursday.
The most notable impact from Debby will be the potentially historic
rainfall. Multiple rounds of heavy rain are expected across the area
through Thursday, and a Flood Watch will remain in effect. For more
details regarding the rainfall forecast and associated impacts, see
the Hydrology section below.
Based on the current track, the highest probabilities for tropical
storm force winds is across coastal counties and over far southeast
Georgia counties near the Altamaha. A Tropical Storm Warning is in
effect for these locations. A Tropical Storm Watch is still in
effect for the next tier of counties of inland Georgia - Candler,
Bulloch, and Effingham - but confidence in TS force winds there is
lower. The threat for tropical storm force winds will spread from
south to north Tuesday into Tuesday night.
In addition, the risk for tornadoes in rainbands will persist
Tuesday into Tuesday night. The threat area will be highly dependent
on the track, but at this point, areas along and near the coast have
the highest potential.
&&
.LONG TERM /THURSDAY NIGHT THROUGH SUNDAY/...
Based on the official NHC track, Debby will still be meandering in
the region at the start of the period, but should start making
northward progress beyond that. By the weekend, we should begin to
transition back to a pattern more typical of early August. Highest
rain chances will be on Friday before Debby finally pulls away.
&&
.AVIATION /14Z MONDAY THROUGH FRIDAY/...
Current radar trends indicate moderate to heavy showers and
thunderstorms shifting north across the region this morning, likely
to impact the KSAV terminal by around 13Z, then KCHS/KJZI
terminals an hour or so later. MVFR cigs should begin at the
terminals with the onset of rain/showers. Conditions will
gradually deteriorate through today as Debby tracks across the
Florida Peninsula, and eventually toward Southeast Georgia.
Showers and thunderstorms associated with the outer bands of
Debby are likely to impact the terminals through the afternoon,
producing bouts of IFR and possibly LIFR conditions at times,
beginning at the SAV terminal (around 16Z Monday) a few hours
prior to KCHS/KJZI terminals. Ongoing rains/showers will likely
favor at least IFR conditions at all terminals late afternoon
and through much of the night. Additionally, winds should start
to become gusty late day and overnight, approaching 25 kt at
KCHS/KJZI and near 30 kt at the KSAV terminal after midnight.
Extended Aviation Outlook: Prolonged periods of flight restrictions
are expected through much of the week as Debby impacts the
region.
&&
.MARINE...
Today and Tonight: The track and intensity of Debby will determine
the marine forecast and impacts across local waters. The most recent
NHC forecast depicts Debby tracking across northern Florida this
morning, slowing while entering southern/southeast Georgia this
afternoon and night. This places our coastal waters within the
northeast quadrant Debby, and an elevated risk for waterspouts
within rainbands as early as late morning, but more likely this
afternoon and tonight when a more pronounced axis of instability and
shear develops as Debby nears. A Tornado Watch has been issued for
nearshore Georgia waters until 4 PM to account for initial
waterspout activity. Additional Tornado Watches could eventually be
needed across coastal waters. Outside the waterspout concern, east-
southeast winds roughly upwards to 15-20 kt with gusts to 25 kts
today will increase late day and overnight, approaching tropical
storm force as Debby draws closer to the coast. Seas are also
expected to build, from 4-7 ft today (largest across Georgia waters)
to 7-10 ft overnight (largest beyond 10 nm from the coast). Tropical
Storm Warnings will therefore continue for all coastal waters.
Tuesday through Saturday: The track and intensity of Debby will
determine the details of the marine forecast across the local
waters. The most recent NHC forecast would indicate Debby will
emerge off the southeast Georgia coast as a tropical storm Tuesday
afternoon and then meander offshore Wednesday into Thursday. Debby
is then expected to make landfall along the South Carolina coast
later Thursday. Given a potentially longer residence time over
waters, the storm could gain some strength before making landfall.
Mariners should prepare for hazardous marine conditions through the
week with tropical storm force winds, very elevated seas, and
potential for waterspouts in rainbands. A Tropical Storm Warning is
in effect for all coastal waters, including the Charleston
Harbor. Conditions should slowly improve late in the period.
Rip Currents/High Surf: Hazardous beach conditions are expected
through much of the week as Debby impacts the region. A High Risk of
rip currents is forecast for Tuesday and will likely continue
beyond. In addition, large breaking waves will impact the
beaches.
&&
.HYDROLOGY...
Debby is expected to produce potentially historic rainfall amounts
that will likely result in areas of catastrophic flooding across
southeast Georgia and southeast South Carolina. A Flood Watch
remains in effect for all of southeast Georgia and southeast South
Carolina through Friday morning.
Once Debby moves onshore in the Big Bend region of Florida this
morning, it is forecast to slowly move northeast and eastward across
southern and southeast Georgia. Debby is then forecast to move into
the Atlantic off the GA coast Tuesday afternoon, potentially
strengthening and bringing additional intense rainfall to coastal
areas within the main core of the system. The combination of deep
tropical moisture and a nearly stationary or meandering tropical
system will set the table for a prolonged period of intense
rainfall. The forecast continues to advertise rainfall totals of 10-
20 inches across all of southeast Georgia and southeast South
Carolina, with localized amounts of up to 30 inches possible. Even
more concerning is that the swath of heaviest rain is likely to fall
along the coastal corridor, including heavily urbanized areas across
Savannah, Hilton Head, Beaufort, and Charleston. This area is
included in a rare High Risk Excessive Rainfall Outlook from the
Weather Prediction Center, further highlighting the potential for
widespread damaging flash flooding.
With these expected rainfall totals, impacts will be widespread and
severe, likely including numerous flooded homes and structures,
damage to roadways including washouts, and unprecedented flooding
along and near smaller creeks and streams. Additionally, there will
likely be an extended period of major flooding (possibly record
setting) along larger main stem rivers that continues well after
Debby moves away from the region. The most intense rainfall will
likely come in bands followed by periods of time of considerably
lighter rainfall or even no rain at all. It remains too early to
determine precise periods of time of when the heaviest rainfall will
occur through the late week time period.
&&
.CHS WATCHES/WARNINGS/ADVISORIES...
GA...Tropical Storm Warning for GAZ099>101-114>119-137>141.
Flood Watch through Friday morning for GAZ087-088-099>101-
114>119-137>141.
High Risk for Rip Currents until 8 PM EDT this evening for GAZ117-
119-139-141.
Storm Surge Warning for GAZ117-119-139-141.
SC...Tropical Storm Warning for SCZ045-047>052.
Flood Watch through Friday morning for SCZ040-042>045-047>052.
High Risk for Rip Currents until 8 PM EDT this evening for
SCZ048>051.
Storm Surge Warning for SCZ048>052.
MARINE...Tropical Storm Warning for AMZ330-350-352-354-374.
&&Hazardous Weather Outlook National Weather Service Charleston SC 825 AM EDT Mon Aug 5 2024 GAZ114>116-118-137-138-140-061230- Tattnall-Evans-Inland Bryan-Inland Chatham-Long-Inland Liberty- Inland McIntosh- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...TORNADO WATCH 596 IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeast Georgia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tornado Watch. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. GAZ087-088-SCZ040-042>044-061230- Jenkins-Screven-Allendale-Hampton-Inland Colleton-Dorchester- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropics: Tropical storm force winds will be possible Tuesday through Thursday as Debby moves through the area. Tropical Storm Watches and Warnings could be needed. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. GAZ117-119-139-141-061230- Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...HIGH RISK FOR RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...TORNADO WATCH 596 IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...STORM SURGE WARNING IN EFFECT... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeast Georgia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. High Risk for Rip Currents. Tornado Watch. Storm Surge Warning. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Surge Warning. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. GAZ099>101-061230- Candler-Bulloch-Effingham- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...TROPICAL STORM WATCH IN EFFECT... This Hazardous Weather Outlook is for southeast Georgia. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropical Storm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropical Storm Watch. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. SCZ045-047-061230- Inland Berkeley-Inland Jasper- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. SCZ048>051-061230- Beaufort-Coastal Colleton-Charleston-Coastal Jasper- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...HIGH RISK FOR RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...STORM SURGE WARNING IN EFFECT... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. High Risk for Rip Currents. Storm Surge Warning. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Surge Warning. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. AMZ330-350-352-061230- 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- 825 AM EDT Mon Aug 5 2024 ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. AMZ354-374-061230- 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- 825 AM EDT Mon Aug 5 2024 ...TORNADO WATCH 596 IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and 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...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024. SCZ052-061230- Tidal Berkeley- 825 AM EDT Mon Aug 5 2024 ...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING... ...STORM SURGE WARNING IN EFFECT... ...TROPICAL STORM WARNING IN EFFECT... This Hazardous Weather Outlook is for southeast South Carolina. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Surge Warning. Tropical Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Surge Warning. Tropical Storm Warning. .SPOTTER INFORMATION STATEMENT... Please relay any reports of hazardous weather including, but not limited to large hail, damaging winds and flooding to the National Weather Service in Charleston at 1-888-383-2024.
The Charleston,SC radar (KCLX), 42 km away, was scanning. The volume nearest the first event began at 23:15 UTC.
43 flash flood, 13 flood, 11 tornado, 7 tropical storm, 1 heavy rain. Local standard time, as filed.
Colleton County Emergency Management reported 35 trees, 1 power line and 1 power pole down across Northern Colleton, most notably around Walterboro and Round O. Additionally, approximately 70 trees were reported down across the entire span of Colleton County.
Colleton County Emergency Management and law enforcement reported 2 trees across Southern Colleton, including one tree that fell on a building on Edisto Island. Additionally, approximately 70 trees were reported down across the entire span of Colleton County.
Law enforcement reported 3 trees and power lines down, most notably in Johns Island and Mount Pleasant. A maximum sustained wind of 45 mph and gust of 63 mph occurred at Folly Beach South End (XFSE) during the event. A maximum sustained wind of 41 mph and gust of 60 mph also occurred at Charleston (XCHA) during the event. A maximum sustained wind of 40 mph and gust of 55 mph also occurred at Isle of Palms Pier (XIOP) during the event.
Law enforcement and the public reported 3 trees down across Jasper County, most notably in Ridgeville and Hardeeville.
Law enforcement reported an incident where a vehicle hydroplaned in a neighborhood and went off a bridge into a pond on Hampton Hall Boulevard. No injuries were reported.
Beaufort County Emergency Management and firefighters reported 36 trees down across Beaufort County, most notably in Beaufort and Bluffton. One tree fell on a vehicle and injured an occupant near the intersection of Buck Island Road and May River Road in Bluffton. A maximum sustained wind of 36 mph and gust of 55 mph occurred at Beaufort (XBUF) during the event.
Emergency manager reports water entering home on Broughton Circle.
Law enforcement reported flood waters entering through the front door of a home along Broughton Circle.
Bluffton Fire District reported that a driver was pulled from a vehicle in a flooded parking lot at Parker's Gas Station along Gateway Village Road.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 97 mph in Edisto Island, South Carolina occurring from 835 PM to 845 PM EST. The tornado started in Colleton County, then briefly tracked across a small portion of Charleston County, then briefly returned back into Colleton County before crossing into Charleston County again and ending.
The first segment of the tornado, which originated in an outer rainband associated with Tropical Storm Debby over the nearshore Atlantic waters, moved onshore at Edisto Beach, South Carolina near the intersection of Highway 174 and Palmetto Boulevard. At the location the tornado moved onshore, it removed roof decking, roof shingles and siding to several homes. The Enmarket gas station also had some roof damage and some air conditioning units thrown from the roof. The tornado then moved north-northwest over a marsh region, snapping many hardwood trees while leaving Colleton County and entering Charleston County at a latitude/longitude of 32.513 N, 80.313 W.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 97 mph in Edisto Island, South Carolina occurring from 835 PM to 845 PM EST. The tornado started in Colleton County, then briefly tracked across a small portion of Charleston County, then briefly returned back into Colleton County before crossing into Charleston County once more and quickly ending.
Along the tornado's second segment, it entered Charleston County from Colleton County at a latitude/longitude of 32.513 N, 80.313 W, moving north-northwest from a marsh region and snapping many hardwood trees and also uprooting some trees along Palmetto Road. From Palmetto Road, the tornado continued on a northwest path over Fishing Creek Drive. At this location, the tornado caused considerable damage to several homes, removing the entire roof of at least three homes and part of the roof decking to at least one more. The tornado was given its highest EF1 rating in this area, with maximum winds estimated to be 97 mph. The tornado then continued northwest across a marshy area before entering Colleton County at a latitude/longitude of 32.517 N, 80.320 W.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 97 mph in Edisto Island, South Carolina occurring from 835 PM to 845 PM EST. The tornado started in Colleton County, then briefly tracked across a small portion of Charleston County, then briefly returned back into Colleton County before crossing into Charleston County once more and quickly ending.
Along the tornado's third segment, it entered Colleton County from Charleston County at a latitude/longitude of 32.517 N, 80.320 W, taking a northwest path across a mix of land/marsh areas and eventually reaching another section of Palmetto Road, likely causing additional damage to structures and trees along its path before continuing on a northwest path and departing Colleton County into Charleston County at a latitude/longitude of 32.524 N, 80.336 W.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 97 mph in Edisto Island, South Carolina occurring from 835 PM to 845 PM EST. The tornado started in Colleton County, then briefly tracked across a small portion of Charleston County, then briefly returned back into Colleton County before crossing into Charleston County once more and quickly ending.
Along the tornado's forth and final segment, it entered Charleston County from Colleton County at a latitude/longitude of 32.524 N, 80.336 W, continuing a northwest path across a marshy region and dissipating north of Palmetto Road.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 90 mph in Edisto Island, South Carolina occurring from 908 PM to 911 PM EST.
The brief tornado, associated with an outer rainband from Tropical Storm Debby, moved onshore along the south end of Edisto Island, South Carolina near the 2700 Block of Point Street, where it snapped and twisted some small trees and removed asphalt shingles to at least one home. The worst damage was on Palmetto Boulevard, where one home had a complete collapse of the porch and a significant portion of the roof removed. The tornado continued to move rapidly northwestward crossing around the 2700 Block of Myrtle Street, where it did some minor damage to the facia of at least one home. Just northwest, near the 2900 block of Lee Street, at least one home had a corner of the roof removed. The tornado then moved into the southern portion of the Plantation Golf Course where it dissipated.
A National Weather Service Storm Survey Team confirmed an EF0 tornado with an estimated maximum wind speed of 85 mph in Kiawah Island, South Carolina occurring from 955 PM to 959 PM EST.
The tornado, associated with an outer rainband of Tropical Storm Debby, moved onshore around the 30 to 40 Block area of Surfsong Road on Kiawah Island, South Carolina. No significant damage was detected at the point it came onshore. The tornado then moved rapidly northwest through the center of Turtle Point Golf Course, snapping some trees and limbs around the 270 to 280 Block area on Doral Open Road. The tornado then continued north toward the 25 to 30 Block of Governors Drive, where it snapped and uprooted some trees. The tornado then moved northwest and dissipated over the marsh region between Governors Drive and Rhetts Bluff Road.
Dorchester County Emergency Management reported 9 trees down across Dorchester County, most notably near Givhans.
A National Weather Service Storm Survey Team confirmed an EF0 tornado with an estimated maximum wind speed of 77 mph in West Ashley, South Carolina occurring from 1114 PM to 1122 PM EST.
The tornado, associated with an outer rainband of Tropical Storm Debby, began near the Citadel Mall and Interstate 526, causing small limb debris. The tornado is suspected to have sporadically touched down as it continued northwest across a mostly uninhabited area along Henry Tecklenburg Drive, just south of Bon Secours Saint Francis Hospital. The tornado then continued northwest across Glenn McConnell Parkway where it snapped and uprooted some trees as it moved near Bairds Cove and Mary Ader Avenue. The tornado then crossed a marshy area of Long Branch Creek and snapped/uprooted a few more trees around Wicklowe Drive. The tornado then continued northwest, tracking south of Canterbury Woods over a heavily wooded area before it crossed Bees Ferry Road. The tornado then tracked along the southern edge of Shadowmoss Plantation Golf Club, where it snapped and uprooted a few more trees between Brogun Lane, McDougall Drive and Dunvegan Drive. The tornado then dissipated just south of Muirfield Parkway, just northwest of the Shadowmoss clubhouse.
A National Weather Service Storm Survey Team confirmed an EF0 tornado with an estimated maximum wind speed of 74 mph in Saint Helena Island, South Carolina occurring from 1141 PM to 1143 PM EST.
The weak and very short-lived tornado, which was associated with an outer rainband of Tropical Storm Debby, touched down over the marsh region of the Harbor River, just south of 1st Coleman Road. Radar data was used to estimate the beginning of the tornado path over the remote marsh region south of 1st Coleman Road. The first detectable damage was a small uprooted tree and a few snapped tree limbs near the southern end of 1st Coleman Road, where it borders the marsh region of the Harbor River. The tornado then moved rapidly northwest, generally along the southern and western side of 1st Coleman Road where it snapped several tree limbs and small trees, broke a flag pole at the base and caused minor damage to the metal skirt at the base of one mobile home. The tornado then continued briefly to the northwest where it ended in a heavily wooded area just southwest of the intersection of Seaside Road and 1st Coleman Road.
A National Weather Service Storm Survey Team confirmed an EF0 tornado with an estimated maximum wind speed of 85 mph in Lady's Island, South Carolina occurring from 1153 PM to 1156 PM EST.
The short-lived tornado developed in an outer rainband of Tropical Storm Debby over Point Creek, just southeast of Lady's Island. The tornado moved rapidly northwest across a marshy region of the island, snapping several small trees in an uninhabited area when it reached Holly Hall Road. The tornado then continued northwest across the marsh region of Rock Springs Creek and to the 500 Block of Sams Point Road, where it snapped several more trees. The tornado then continued on a northwest path and quickly dissipated just south of Wade Hampton Drive.
Emergency management reported a tree down near the intersection of Yeamans Hall Road and North Rhett Avenue.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 87 mph in Isle of Palms, South Carolina occurring from 1233 AM to 1237 AM EST.
The brief tornado, associated with an outer rainband from Tropical Storm Debby, moved onshore near 25th Avenue where it did minor roof damage to one house and also pulled the front door out the frame. The tornado continued north-northwest along 25th Avenue between Palm Boulevard and Hartnett Boulevard, where it pulled out a few windows and snapped/uprooted some trees. As the tornado moved just north of Hartnett Boulevard, it removed the shingles from a portion of the roofs from a few homes. Beyond this point, the tornado curved a bit more northwest and snapped a few more trees before starting to lift near the intersection of Waterway Boulevard and 24th Avenue, then dissipated within the Intra Coastal Waterway. Overall, an estimated 29 homes sustained some level of damage, either directly by the tornado or from trees or large limbs falling on them.
A National Weather Service Storm Survey Team confirmed an EF1 tornado with an estimated maximum wind speed of 95 mph in Moncks Corner, South Carolina occurring from 153 AM to 200 AM EST.
The tornado, which originated in an outer rainband associated with Tropical Storm Debby, touched down just east of McCormick Circle, snapping two trees in the woods behind an Applebee's. The tornado then moved northwest, causing damage to the Applebee's sign and then turned west, flipping vehicles that led to 2 minor injuries. The tornado then continued on a west track, impacting an Arby's. This was the location of the strongest damage as numerous windows were blown out at the Arby's on both the west and east-facing sides of the building. The rooftop A/C was also blown into the Arby's parking lot. However, no other structural damage was noted and therefore the degree of damage was kept near the middle of the expected wind speed, or at 95 mph. The Walmart Supercenter to the northwest of Arby's also sustained some very minor roof fascia damage, which was starting to peel off from the main structure. The tornado then continued to move northwest and passed Mitton Road, where several trees were uprooted with a few branches greater than 3 inches in diameter broken. There was also a residence on Mitton Road that had roof damage to less than 20% of the structure. The tornado then moved northwest and weakened as it crossed Kitfield Road, where some branches (mostly 1-3 in diameter) were broken. There were also branches (1-3 in diameter) snapped northwest of this location on Lois Circle and Broughton Road. The tornado then continued a path northwest, before dissipating on the northern end of the Pinopolis Peninsula along the south end of Lake Moultrie.
A NWS employee reported that flood waters entered several businesses along Ashley River Road near Otis Avenue.
A NWS employee reported water entering the back of several homes near Ashley Hall Road and St Julian Drive.
Law enforcement reported a road washed out near the intersection of Cane Branch Road and Edward Road.
Firefighters located at Charleston Fire Station 8 on Huger Street reported several inches of floodwater entering the station Tuesday morning.
A Hampton County emergency manager reported two homes flooded along Willard Street in the town of Hampton, South Carolina. In addition, several roads were washed out or flooded across the county.
The water level on Church Creek near West Ashley was 6.51 ft and rising. Moderate flood stage is 6.5 ft. At 6.5 ft, water from the creek commonly impacts Crosstowne Church.
Law enforcement reported a portion of roadway damaged in the 2500 Block of Black Creek Road.
Law enforcement reported a portion of roadway damaged near the intersection of Black Creek Road and Edward Road.
Fire officials reported flood waters entered a home at the intersection of Farm Lake Drive and Cattle Run Way. Waters were also about to enter several homes nearby.
A Colleton County emergency manager reported Bennetts Point Road near the intersection with Island Flats Lane closed due to deep flooding. The entire area was impassable.
Law enforcement reported a portion of roadway damaged in the 600 Block of Cedar Creek Road.
Law enforcement reported a portion of roadway damaged in the 8300 Block of Bennetts Point Road.
Law enforcement reported a portion of roadway damaged in the 100 Block of Good Hope Landing Lane.
The public reported flowing water entering buildings near the intersection of Furman Lane and Oxford Road.
The City of Charleston reported over 60 roads closed across the city due to flooding. The City of Charleston web page indicated that all primary access points to the Charleston Peninsula were closed to incoming traffic due to widespread flooding.
A Dorchester County emergency manager reported a water rescue in progress on Magwood Drive. Another resident on the 9000 Block of Dorchester Road requested assistance. In addition, a guardrail along Dorchester Road was washed out with water along the road bankfull.
The river gauge at French Quarter Creek (FQCS1) near Huger, South Carolina reached the moderate flood stage of 11.5 feet. This is the level when flash flooding begins along the creek.
Jasper County Emergency Management reported Langfordville Road collapsed over Beaverdam Branch, washing a car and occupant downstream. An adult female was rescued from the floodwaters without injury.
A Beaufort County emergency manager reported floodwater entering one home and surrounding another home along Bay Pine Drive.
Law enforcement reported a portion of roadway washed out near the intersection of Mill Pond Road and Low Country Highway.
Law enforcement reported a portion of roadway washed out in the 400 Block of Paradise Road.
Colleton County Emergency Management reported that the drainage pipe under the roadway in the 1300 Block of Forks Road has washed out due to heavy rainfall from Debby. The exact date and time is estimated.
Major flooding occurred along French Quarter Creek where a USGS gauge (FQCS1) measured the 2nd highest crest on record (13.41 ft at approximately 1015 AM EST on August 8th). French Quarter Creek Road was completely flooded and any ground level homes were inundated with flood waters. The road and all homes were only accessible by boat during the peak of the flooding.
Berkeley County Emergency Management reported a washout of Cane Gulley Road near Highway 402.
Law enforcement reported a portion of roadway washed out in the 600 Block of Wiggins Road.
Colleton County Emergency Management reported a road washout at 5000 Wiggins Road.
Dorchester County Emergency Management reported that the Department of Transportation was shutting down Delmar Highway at Ashley Ridge High School because floodwaters were washing the roadway away.
Law enforcement reported a portion of roadway damaged in the 2400 Block of Mewville Road.
Broadcast media indicated that the roof of a convenience store collapsed near the Flyover on Highway 278, likely due to the weight of standing rainwater.
A Hampton County emergency manager reported that the shoulder of Hendersonville Highway was washed out.
A video posted on social media showed two dikes at Crosbys Pond breached due to heavy rainfall and all water in the 20 acre pond rapidly draining into nearby Black Creek.
A social media post showed the roadbed below Edward Road was completely washed out.
A Colleton County emergency manager reported multiple washouts along the dirt road portion of See See Road.
A Colleton County emergency manager reported Cyrus Lane off Green Pond Road washed out due to the heavy rain and ditches backing up with water.
A Colleton County emergency manager reported a home on Sniders Highway having sewage backup inside due to the sewer drainage being filled with rainwater that was also covering the road.
A Colleton County emergency manager reported the 4200 Block of Peirce Highway near Royal Oak Lane closed due to flooding with as much as 4 feet of moving water.
The public relayed a video of a flooded house on Fairlawn Drive in Moncks Corner.
Emergency officials in Moncks Corner reported that high water rescues were in progress, homes were flooded throughout the city and roads were closed due to 2-3 feet of fast moving water.
Berkeley County Emergency Management reported approximately 30 swift water rescues within Berkeley County, mainly in Moncks Corner. No injuries have been reported.
A Colleton County emergency manager reported a tree down near the intersection of Green Pond Highway and Ritter Road.
A Berkeley County emergency manager reported a tree blocking the Haynesville Road due to flash flooding.
A Colleton County emergency manager reported a tree down near the 26600 Block of Augusta Highway.
A picture on social media shows a stranded car in flood waters located on Nexton Parkway near the intersection with Pine Hollow Drive. Two occupants were rescued from vehicle with no reported injuries.
A Dorchester County emergency manager and media reported at least 75 roads closed due to flooding across Dorchester County this morning. A slightly larger amount of road closures were near Harleyville, Summerville and along the Edisto River.
A Colleton County emergency manager reported a sink hole and roadway damage due to flooding along the 1500 Block of Stokes Road.
A Dorchester County emergency manager shared a picture of paved Wire Road washed out near the intersection with Zion Road.
A video posted on social media shows water rapidly flowing across a commercial parking lot and across a boat ramp near Reid Hill Road.
A Dorchester County emergency manager shared a picture of a washout along the paved 695 Block of Powder Horn Road.
A Dorchester County emergency manager relayed an image of water moving over Salem Road where it intersects with Halfway Gut Creek.
A Dorchester County emergency manager reported paved roadway damage on Summers Drive between Highway 17A and Victoria Point Lane. A small bridge in between these locations was also starting to crumble at this time.
A Colleton County emergency manager reported Charleston Highway closed due to flooding at Horseshoe Creek Bridge between Neyles and Jacksonboro, South Carolina. Water was actively flowing over the roadway.
A Colleton County emergency manager reported power lines down due to flooding at the 1400 Block of Francis Street.
Berkeley County Emergency Management reported Heatly Street in Moncks Corner being closed due to high water caused by flash flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2024Every state in 2024This day in weather historyThe tornado archive for South Carolina, 2024Warnings in South Carolina, August 2024The 2024 hurricane season
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 2026-09-24. Each event’s entry at NCEI: 1214739, 1214785, 1214859, 1214790, 1214273, 1214852, 1213372, 1213373, 1214276, 1212774, 1212775, 1212776, 1212777, 1212791, 1212792, 1214872, 1212793, 1212797, 1212794, 1214879, 1212746, 1212795, 1213374, 1213382, 1213527, 1213528, 1213530, 1213534, 1213536, 1213542, 1213543, 1213544, 1213551, 1213561, 1213568, 1213572, 1213612, 1213807, 1214218, 1214226, and more.