Alert archive / South Carolina / Flash Flood Warnings in 2022

Flash Flood Warning 6, NWS Charleston, SC

September 30, 2022Charleston County, Colleton County, South Carolina

NWS Charleston, SC issued this flash flood warning at Sep 30, 2022, 10:35 AM EDT for Charleston County, Colleton County, South Carolina. It was in force for 5 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 30, 2022, 10:35 AM EDT (14:35 UTC)
Expired
Sep 30, 2022, 3:18 PM EDT
In force
5 hr
Issued by
NWS Charleston, SC
Area
Storm-based polygon
Flood severity
None

Counties Charleston County, SC, Colleton County, SC

The radar

The Charleston,SC radar (KCLX), 76 km from the middle of the area, began a volume at 14:35 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.

What was reported inside it

TimeReportWhereRemark
Sep 30, 1:07 PM EDTHEAVY RAIN 0Folly Beach, SCALL SIDE STREETS ALONG EAST ASHLEY AVE UP TO 5TH STREET ARE REPORTED FLOODED. EAST COOPER AND EAST ASHLEY BEYOND 5TH STREET FLOODED. TABBY ISLAND, MARINERS CAY, AND OTHER AREAS ON THE BACK OF THE ISLAND ARE REPORTED FLOODED AS WELL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 235 minutes after it went out.

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 nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 2.6 hours before the alert went out and 33 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 12:00Z on 2022-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2022-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 710 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
462 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
710 m²/s²
0-3 km storm-relative helicity
882 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

071 
WGUS52 KCHS 301435
FFWCHS
SCC019-029-301800-
/O.NEW.KCHS.FF.W.0006.220930T1435Z-220930T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston SC
1035 AM EDT Fri Sep 30 2022

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Charleston County in southeastern South Carolina...
  Colleton County in southeastern South Carolina...

* Until 200 PM EDT.

* At 1027 AM EDT, Doppler radar indicated bands of heavy rain 
  associated with Hurricane Ian will push across southern Charleston 
  County from late morning through early afternoon. Between 2 and 3 
  inches of rain has fallen this morning. The expected rainfall rate 
  is 1 to 2 inches in 1 hour may continue through mid-day. 
  Additional rainfall amounts of 3 to 5 inches are possible across 
  the warned area, especially near Johns Island, Ravenel, and 
  Wadmalaw Island. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  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...
  Edisto Beach, Johns Island, West Ashley, James Island, Hollywood, 
  Folly Beach, Ravenel, Seabrook Island, Kiawah Island, Meggett, 
  Rockville, Bears Bluff, Yonges Island, Wadmalaw Island, Adams Run, 
  Edisto Island, Jacksonboro, Bennetts Point, Dungannon Heritage 
  Preserve and Capwells Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Flooding is likely in low-lying coastal areas where high tide will 
inhibit runoff of heavy rain.

&&

LAT...LON 3248 8034 3256 8047 3277 8050 3282 8018
      3282 8016 3282 8015 3282 8013 3267 7989
      3255 8018

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

$$

NED
3 follow-up statements
038 
WGUS52 KCHS 301638
FFWCHS
SCC019-029-302000-
/O.EXT.KCHS.FF.W.0006.000000T0000Z-220930T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston SC
1238 PM EDT Fri Sep 30 2022

The National Weather Service in Charleston has extended the

* Flash Flood Warning for...
  Charleston County in southeastern South Carolina...
  Colleton County in southeastern South Carolina...

* Until 400 PM EDT.

* At 1231 PM EDT, Doppler radar indicated bands of heavy rain 
  associated with Hurricane Ian nearly stationary across southern 
  Charleston County early this afternoon. Between 5 and 8 inches of 
  rain has fallen so far today between Rantowles across Johns Island 
  to Folly Beach. As the band lingers into the mid afternoon hours, 
  an additional 2 to 4 inches may fall. The expected rainfall rate 
  is 1 to 2 inches in 1 hour may continue through early this 
  afternoon. Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by rain bands associated with
           Hurricane Ian

  SOURCE...Radar.

  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...
  Edisto Beach, Johns Island, West Ashley, James Island, Hollywood, 
  Folly Beach, Ravenel, Seabrook Island, Kiawah Island, Meggett, 
  Rockville, Bears Bluff, Yonges Island, Wadmalaw Island, Adams Run, 
  Edisto Island, Jacksonboro, Bennetts Point, Dungannon Heritage 
  Preserve and Capwells Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Flooding is likely in low-lying coastal areas where high tide will 
inhibit runoff of heavy rain.

&&

LAT...LON 3248 8034 3256 8047 3277 8050 3282 8018
      3282 8016 3282 8015 3282 8013 3267 7989
      3255 8018

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

$$

NED
330 
WGUS72 KCHS 301813
FFSCHS

Flash Flood Statement
National Weather Service Charleston SC
213 PM EDT Fri Sep 30 2022

SCC029-301823-
/O.CAN.KCHS.FF.W.0006.000000T0000Z-220930T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Colleton SC-
213 PM EDT Fri Sep 30 2022

...FLASH FLOOD WARNING IS CANCELLED FOR COLLETON COUNTY...

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

A Flood Watch remains in effect until 1200 AM EDT Saturday for a 
portion of southeast South Carolina.

LAT...LON 3261 8025 3264 8028 3279 8035 3282 8018
      3282 8017 3282 8016 3282 8015 3282 8013
      3268 7990 3267 7989 3263 7998 3255 8018
      3256 8019

$$

SCC019-302000-
/O.CON.KCHS.FF.W.0006.000000T0000Z-220930T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Charleston SC-
213 PM EDT Fri Sep 30 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 4 PM EDT THIS 
AFTERNOON FOR CHARLESTON COUNTY...

At 207 PM EDT, Doppler radar indicated widespread moderate rain 
across southern Charleston County early this afternoon. Between 5 
and 8 inches of rain has fallen so far today between Rantowles 
across Johns Island to Folly Beach. An additional inch of rain may 
occur over southern Charleston County by 4 PM. Around 1 PM, law 
enforcement reported several roads were flooded across Folly Beach. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Radar.

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...
  Johns Island, West Ashley, James Island, Hollywood, Folly Beach, 
  Ravenel, Seabrook Island, Kiawah Island, Meggett, Rockville, 
  Wadmalaw Island, Yonges Island, Bears Bluff, James Island County 
  Park, Angel Oak Park, Dungannon Heritage Preserve, Rantowles, 
  Huskum Corner Crosroads, Legareville and Beachwalker Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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 3261 8025 3264 8028 3279 8035 3282 8018
      3282 8017 3282 8016 3282 8015 3282 8013
      3268 7990 3267 7989 3263 7998 3255 8018
      3256 8019

FLASH FLOOD...RADAR INDICATED

$$

NED
239 
WGUS72 KCHS 301918
FFSCHS

Flash Flood Statement
National Weather Service Charleston SC
318 PM EDT Fri Sep 30 2022

SCC019-301928-
/O.CAN.KCHS.FF.W.0006.000000T0000Z-220930T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Charleston SC-
318 PM EDT Fri Sep 30 2022

...FLASH FLOOD WARNING IS CANCELLED FOR CHARLESTON COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 1200 AM EDT Saturday for a 
portion of southeast South Carolina.

LAT...LON 3261 8025 3264 8028 3279 8035 3282 8018
      3282 8017 3282 8016 3282 8015 3282 8013
      3268 7990 3267 7989 3263 7998 3255 8018
      3256 8019

$$

NED

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Sep 30, 10:10 AM EDT, 25 minutes earlier.

Area forecast discussion, Sep 30, 10:10 AM EDT, 25 minutes before
Area Forecast Discussion
National Weather Service Charleston SC
1010 AM EDT Fri Sep 30 2022

.SYNOPSIS...
Hurricane Ian is expected to bring impacts to the area through
tonight. A drier and cool air mass is expected this weekend
through early next week.

&&

.NEAR TERM /THROUGH TONIGHT/...
The forecast has been updated to account for a tighter gradient
between where steady moderate to heavy rains will occur, mainly
over the Charleston Quad-County region and Beaufort County, to
where we have little to no rain over much of our Georgia zones.
We removed mention of t-storms from all but the Charleston Tri-
County which will be in closest proximity to the track of Ian.

The most immediate concern will be the main band northwest of
Ian that will impact Charleston and Berkeley County and maybe a
portion of Dorchester County with hurricane force winds and
intense rains and a few t-storms. There could be a quick 3 to 5
inches in some places into early afternoon resulting in flash
flooding. This includes downtown Charleston and surrounding
locations. There will be trees and powerlines down as well.

Satellite imagery showing that Ian is taking on more of an
extra-tropical or hybrid appearance with an occluded low and a
cold front that stretches south to the Bahamas. The system is
being kept from moving onshore just yet due to the fact that it
is not a "pure" hurricane, with the cool and wet pre-existing
air mass in place. Plus Ian is feeding off the Gulf Stream and
is in proximity to the associated baroclinic zone.

Temps and dew points are very fall like and will stay far below
climo through the day. We have adjusting the grids to show
cooler temps, both hourly and for max values.

Previous discussion...
Sunrise update: Rainbands continue to push onshore and a Flash
Flood Warning has been issued for Downtown Charleston and
surrounding areas until noon. There have been numerous reports
of road closures. As for the forecast, updated temperatures and
dewpoints with current observations. Otherwise, the forecast is
on track.

Today: Hurricane Ian (refer to the latest NHC advisories regarding
the track/intensity of Ian) will approach the region this morning
then make landfall sometime this afternoon. With the approach,
moderate to heavy bands of rainfall will gradually encompass the
area. One of the concerns of the day will be the possibility of
flooding. The highest rain amounts will occur across the Charleston
Tri-county with 3-7 inches possible. Further south, drier air will
keep rain chances lower with only 1-3 inches can be expected. As
typical, locally higher rainfall amounts will be possible. If
heavier bands set up over the same area throughout the day, flooding
could be exacerbated. The intense rainfall rates combined with
periods of storm surge could cause significant flooding near/around
tidal areas. WPC has outlooked portions of southeast South
Carolina in a moderate risk of excessive rainfall. A Flood Watch
will remain in effect for most of our SC counties and for
Chatham county. Aside from the rainfall, winds will be quite
gusty as Hurricane Ian is forecast to make landfall as a
Category 1. This will lead to breezy conditions throughout the
day, especially on bridges and elevated buildings. A Hurricane
Warning is in effect for coastal SC counties. A Tropical Storm
Warning has also been issued for portions of SE SC/GA as there
is some concern that mixing will occur as Hurricane Ian shifts
inland. Therefore, winds could exceed 40 mph at times.
Otherwise, it will be cloudy and cool. Highs will be in the mid
60s to low 70s.

Tonight: Hurricane Ian will shift away from the area late
tonight and conditions should quickly improve. Winds are
expected to quickly diminish by midnight. Similarly, any
lingering precipitation should dissipate around the same time.
Overnight, cloud cover will depart the region, leaving the area
with decent radiational cooling, allowing for lows to be in the
mid 50s to low 60s.

&&

.SHORT TERM /SATURDAY THROUGH MONDAY/...
A strong mid-level trough will persist along the Eastern third of
the country through Sunday, with an embedded cut-off low hovering
near the middle Appalachians. The low will shift towards the Mid-
Atlantic on Monday while the trough weakens. At the surface, the
remnants of Ian will be to our north on Saturday and moving away,
while a weak front moves through our area, then offshore Saturday
night. The weak front will linger further offshore through Monday
while high pressure gradually builds in from the west and northwest.
Models indicate that remnant moisture from Ian should stay well to
our north through Monday, and any additional moisture associated
with the front will stay should also stay far offshore. Therefore,
dry conditions are expected to persist. High temperatures will be at
or slightly below normal Saturday and Sunday, then falling well
below normal on Monday. Due to the dry air mass and mostly clear
skies, decent radiational cooling should yield low temperatures well
below normal Saturday night and Sunday night.

&&

.LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...
Surface High pressure will build in from the northwest Monday night
through Wednesday, then shift offshore on Thursday. The High will
bring our area dry conditions. Temperatures will remain well below
normal. Though, highs are expected to trend warmer each day.

&&

.AVIATION /14Z FRIDAY THROUGH TUESDAY/...
Conditions across KJZI, KSAV and KCHS have deteriorated and
flight restrictions will prevail through much of the day. As
Tropical Cyclone Ian approaches, extensive cloud cover and
moderate to heavy rainbands will move onshore, leading to IFR to
LIFR conditions for much of the morning at KCHS/KJZI. By late
afternoon, conditions should start to improve and VFR is
expected to return by 04Z Saturday.

Extended Aviation Outlook: VFR.

&&

.MARINE...
Today: Hurricane Ian will move across the waters throughout the
morning producing hazardous marine conditions across all waters,
including the Charleston Harbor. Hurricane force winds will be
possible and a Hurricane Warning will remain in effect. Seas will be
10-15 feet in the nearshore waters with 15-20 feet in the outer
Georgia waters. Once Ian makes landfall, conditions will gradually
improve into the overnight.

Extended Marine: Conditions will gradually improve Saturday as the
remnants of Ian continue to move north of the area and a weak cold
front moves offshore overnight. A weak front will remain offshore
early next week while High pressure persists to our northwest.
Conditions are expected to remain below Small Craft Advisory
criteria.

Marine Impacts: High risk for rip currents expected along all area
beaches Friday. Conditions on Friday into Friday night along all
beaches may lead to High Surf (5 to 8 ft breakers) and Beach
Erosion. There will be both a High Risk for rip currents and a High
Surf Advisory in effect through Friday. A moderate risk for rip
currents is expected for Saturday, with lingering long swell periods
and 3-4 ft breakers.

&&

.HYDROLOGY...
High resolution guidance indicates that a band of convection will
rotate ahead of the center of Ian Friday morning. In fact, it
appears that the convection will pivot across the CHS Tri-county,
resulting in 4 to 7 inches of rain falling generally during the
daylight hours. The intense rainfall rates combined with
periods of storm surge could cause significant flooding near
around tidal areas. The most persistent rain bands are expected
to remain east of the I-95 corridor. However, the greatest
rainfall amounts will remain along and north the center of Ian,
leading to the heaviest rainfall and intense rainfall rates over
the CHS Tri-county, where some areas could see localized
amounts in excess of 8 inches.

&&

.TIDES/COASTAL FLOODING...
Significant coastal flooding is expected to continue with the
Friday morning high tide as Hurricane Ian impacts the area,
especially along the Charleston and Colleton county coasts. The
offshore flow and much less rain south of Beaufort County will
cause very little in the way of coastal flooding.

The rainfall may overlap with periods of significant coastal
flooding/storm surge, exacerbating any fresh or salt water flooding.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...Tropical Storm Warning for GAZ087-088-099>101-114>119-137>141.
     Flood Watch through this evening for GAZ117>119.
     High Risk for Rip Currents until 8 PM EDT this evening for GAZ117-
     119-139-141.
     High Surf Advisory until 8 AM EDT Saturday for GAZ117-119-139-
     141.
     Storm Surge Warning for GAZ117-119-139-141.
SC...Hurricane Warning for SCZ045-047>052.
     Tropical Storm Warning for SCZ040-042>044.
     Flood Watch through this evening for SCZ042>045-047>052.
     High Risk for Rip Currents until 8 PM EDT this evening for
     SCZ048>051.
     High Surf Advisory until 8 AM EDT Saturday for SCZ048>051.
     Storm Surge Warning for SCZ048>051.
MARINE...Hurricane Warning for AMZ330-350-352-354-374.
&&

NEAR TERM...
SHORT TERM...
LONG TERM...
AVIATION...
MARINE...
HYDROLOGY...
TIDES/COASTAL FLOODING...
Hazardous weather outlook, Sep 30, 4:58 AM EDT, 5 hours 37 minutes before
Hazardous Weather Outlook
National Weather Service Charleston SC
458 AM EDT Fri Sep 30 2022

GAZ101-116-137-138-140-010900-
Effingham-Inland Bryan-Long-Inland Liberty-Inland McIntosh-
458 AM EDT Fri Sep 30 2022

...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.

   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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...

Spotter assistance is not anticipated at this time.

GAZ139-141-010900-
Coastal Liberty-Coastal McIntosh-
458 AM EDT Fri Sep 30 2022

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...
...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.

   High Risk for Rip Currents.
   High Surf Advisory.
   Storm Surge Warning.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   High Surf Advisory.
   Storm Surge Warning.
   Tropical Storm Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

SCZ045-047-052-010900-
Inland Berkeley-Inland Jasper-Tidal Berkeley-
458 AM EDT Fri Sep 30 2022

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...HURRICANE 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.
   Hurricane Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Hurricane Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

SCZ048>051-010900-
Beaufort-Coastal Colleton-Charleston-Coastal Jasper-
458 AM EDT Fri Sep 30 2022

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...
...HURRICANE WARNING IN EFFECT...
...STORM SURGE 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.
   High Surf Advisory.
   Hurricane Warning.
   Storm Surge Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   High Surf Advisory.
   Hurricane Warning.
   Storm Surge Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

GAZ117-119-010900-
Coastal Bryan-Coastal Chatham-
458 AM EDT Fri Sep 30 2022

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 AM EDT SATURDAY...
...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...HIGH RISK FOR RIP CURRENTS IN EFFECT THROUGH THIS EVENING...
...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.
   High Surf Advisory.
   Storm Surge Warning.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   High Surf Advisory.
   Storm Surge Warning.
   Tropical Storm Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

GAZ118-010900-
Inland Chatham-
458 AM EDT Fri Sep 30 2022

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...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.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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...

Spotter assistance is not anticipated at this time.

GAZ087-088-099-100-114-115-SCZ040-010900-
Jenkins-Screven-Candler-Bulloch-Tattnall-Evans-Allendale-
458 AM EDT Fri Sep 30 2022

...TROPICAL STORM WARNING IN EFFECT...

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.

   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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...

Spotter assistance is not anticipated at this time.

SCZ042>044-010900-
Hampton-Inland Colleton-Dorchester-
458 AM EDT Fri Sep 30 2022

...FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...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...Saturday through Thursday.

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...

Spotter assistance is not anticipated at this time.

AMZ330-350-352-354-374-010900-
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-
458 AM EDT Fri Sep 30 2022

...HURRICANE 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.

 Hurricane Warning.

Waterspouts: A few waterspouts will be possible today.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

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

   Hurricane Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

In the hours before

Local storm report, Sep 30, 6:21 AM EDT, 4 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
621 AM EDT FRI SEP 30 2022

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

0612 AM     TROPICAL STORM   CHARLESTON AIRPORT      32.90N  80.04W
09/30/2022                   CHARLESTON         SC   ASOS

            A GUST TO 40 MPH WAS OBSERVED AT THE CHARLESTON
            INTERNATIONAL AIRPORT.

&&

EVENT NUMBER CHS2201379
Local storm report, Sep 30, 6:29 AM EDT, 4 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
629 AM EDT FRI SEP 30 2022

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

0546 AM     TROPICAL STORM   MARINE CORPS AIR STATIO 32.49N  80.70W
09/30/2022                   BEAUFORT           SC   ASOS

            A WIND GUST OF 46 MPH WAS OBSERVED AT THE BEAUFORT
            MARINE CORPS AIR STATION.

&&

EVENT NUMBER CHS2201380
Local storm report, Sep 30, 7:03 AM EDT, 3 hours 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
703 AM EDT FRI SEP 30 2022

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

0701 AM     TROPICAL STORM   CHARLESTON              32.78N  79.94W
09/30/2022                   CHARLESTON         SC   LAW ENFORCEMENT

            THE FOLLOWING ROADS IN DOWNTOWN CHARLESTON ARE CLOSED
            DUE TO FLOODING: ASHLEY AVE, BARRE ST., BOGARD ST,
            CUMBERLAND ST, HAGOOD/FISHBURNE INTERSECTION, HAYWOOD
            ST, WENTWORTH ST.

&&

EVENT NUMBER CHS2201381
Local storm report, Sep 30, 7:22 AM EDT, 3 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
722 AM EDT FRI SEP 30 2022

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

0714 AM     TROPICAL STORM   2 WSW FOLLY BEACH       32.64N  79.97W
09/30/2022                   CHARLESTON         SC   MESONET

            THE WEATHERFLOW SENSOR ALONG THE SOUTH END OF FOLLY
            BEACH REPORTED A WIND GUST OF 66 MPH.

&&

EVENT NUMBER CHS2201382
Local storm report, Sep 30, 7:32 AM EDT, 3 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
732 AM EDT FRI SEP 30 2022

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

0653 AM     TROPICAL STORM   5 ESE FRIPP ISLAND      32.28N  80.41W
09/30/2022                   AMZ352             SC   BUOY

            A WIND GUST TO 58 MPH WAS MEASURED AT THE FRIPP
            NEARSHORE BUOY.

&&

EVENT NUMBER CHS2201383
Local storm report, Sep 30, 7:36 AM EDT, 2 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
736 AM EDT FRI SEP 30 2022

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

0510 AM     HURRICANE        39 SSE CENTENARY        32.50N  79.10W
09/30/2022                   AMZ370             SC   BUOY

            A WIND GUST TO 74 MPH WAS OBSERVED AT THE EDISTO BUOY.

&&

EVENT NUMBER CHS2201384

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 6:01 AM EDTFlash Flood Warning Considerable damage threatCHSBerkeley, Charleston11 hr
Sep 30, 10:04 AM EDTFlash Flood Warning Considerable damage threatCHSBerkeley, Charleston5 hr
Sep 30, 10:37 AM EDTFlash Flood Warning Considerable damage threatCHSBerkeley, Charleston, Dorchester5 hr
Sep 30, 10:53 AM EDTAreal Flood AdvisoryCHSBerkeley4 hr
Sep 30, 11:35 AM EDTAreal Flood AdvisoryCHSCharleston, Colleton, Dorchester4 hr
Sep 30, 4:14 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Dorchester3 hr
Sep 30, 5:02 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston3 hr
Sep 30, 5:02 PM EDTSmall Craft AdvisoryCHS13 hr

Nearby

Flash Flood Warnings in South Carolina, 2022Every flash flood warning in 2022

Sources

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