Georgia, 2007

High Surf in Georgia, October 29, 2007

October 29, 2007 · NWS CHS · 4 events in 4 counties and zones

S. and low pressure off the South Carolina and Georgia coastline, resulted in a tight pressure gradient across the area.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

What happened

The episode as NWS CHS wrote it up.

The combination of high pressure building into the Southeast U.S. and low pressure off the South Carolina and Georgia coastline, resulted in a tight pressure gradient across the area. Strong Northeast winds and High Astronomical Tides combined to produce moderate to severe Beach Erosion across the region.

What forecasters said that day

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 Oct 29, 9:08 AM EST, 1 hour 2 minutes earlier.

Area forecast discussion, Oct 29, 9:08 AM EST, 1 hour 2 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
1008 AM EDT MON OCT 29 2007

.SYNOPSIS...
HIGH PRES WILL REMAIN THE DOMINANT WEATHER FEATURE INTO THE UPCOMING
WEEK.

&&

.NEAR TERM /THROUGH TONIGHT/...
THE TIGHT SURFACE PRESSURE GRADIENT WILL SUPPORT GUSTY WINDS
TODAY...WITH STRONGEST WINDS ALONG THE IMMEDIATE
COAST...ESPECIALLY ALONG THE GEORGIA COAST. HOWEVER...A SURVEY OF
COASTAL OBSERVATIONS SUGGESTS THAT SUSTAINED WINDS/GUSTS ARE
REMAINING BELOW ADVISORY CRITERIA...AND PLAN TO DISCONTINUE ALL
WIND ADVISORIES FOR COASTAL COUNTIES BY LATE MORNING. EVEN
SO...SUSTAINED WINDS 20-30 MPH WITH GUSTS 35-40 MPH WILL PERSIST
ALONG THE IMMEDIATE COAST TODAY.

MEANWHILE...THE 12Z KCHS/KJAX SOUNDINGS REVEAL THE TREMENDOUS N-S
MOISTURE GRADIENT IN PLACE ACROSS THE REGION...AND SHOWERS WERE
STRUGGLING TO ADVANCE NORTH EVEN INTO GEORGIA COASTAL COUNTIES
MONDAY MORNING. A FEW LIGHT SHOWERS SHOULD PUSH INTO GA COASTAL
WATERS...AND PERHAPS AS FAR NORTH AS EXTREME SOUTHERN GA COASTAL
COUNTIES...BUT NOT UNTIL THIS AFTERNOON AT THE EARLIEST. ALSO...
A BAND OF MID/HIGH LEVEL CLOUDS WAS SLOWLY RETREATING S/E. CLEAR
SKIES WERE ALREADY IN PLACE ACROSS FAR INLAND COUNTIES...AND
CLOUDS SHOULD THIN ACROSS MOST AREAS THIS AFTERNOON....WITH THE
EXCEPTION OF EXTREME S/SE COUNTIES.

ONGOING TEMPERATURES APPEAR ON TRACK...LOWERED DEWPOINTS AND
RELATIVE HUMIDITY PER MONDAY MORNING OBSERVATIONS/TRENDS.

LAKE WINDS...THE ONGOING LAKE WIND ADVISORY FOR LAKE MOULTRIE
LOOKS ON TRACK. MONDAY MORNING SPEEDS 20-25 KT WERE IN THE
CHARLESTON HARBOR...IN A SIMILAR REGIME THE MIXED LAYER OVER THE
OPEN LAKE WATERS OF LAKE MOULTRIE WILL CONTINUE TO SUPPORT 20 TO
25 KT WINDS...WITH A FEW GUSTS TO 30 KT.

&&

.SHORT TERM /TUESDAY/...
BELOW NORMAL TEMPS WILL CONTINUE TONIGHT AND TUESDAY DUE TO STRONG
COLD ADVECTION. SOME LOW AND MID LEVEL CLOUDS WILL PROBABLY AFFECT
FAR SOUTHERN AREAS TONIGHT AND TUESDAY AS THE 850 MB RIDGE AXIS
FLATTENS OUT OVER THE CAROLINAS. HAVE KEPT LOW END CHANCE POPS
ACROSS PARTS OF THE WATERS...CLOSEST TO THE REMNANT FRONTAL
BOUNDARY.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
WE EXPECT THE CURRENT SFC RIDGE TO BE SHIFTING OFFSHORE BY WEDNESDAY
WITH MORE LOW-LEVEL MOISTURE RETURNING. HOWEVER THIS WILL BE
SHORT-LIVED AS ANOTHER HIGH PRESSURE SYSTEM FROM THE NW WILL PUSH A
COLD FRONT THROUGH THE AREA THURSDAY NIGHT OR FRIDAY. POPS WILL BE
RATHER LOW ACROSS MOST LAND AREAS THROUGH THE PERIOD WITH TEMPS NEAR
CLIMO.

&&

.AVIATION /14Z MONDAY THROUGH FRIDAY/...
STRONG LOW LEVEL WINDS NOTED AT THE START OF 12Z CHARLESTON SOUNDING
WITH 34 KT AT 1 KFT AND 37 KT AT 2 KFT. WE CONTINUE TO INDICATE
PREVAILING NE GUSTS 20 TO 25 KT AT BOTH TERMINALS THROUGH MID
AFTN. OCNLY HIGHER GUSTS ARE CERTAINLY POSSIBLE. SPEEDS DECREASING
LATE AFTN INTO THIS EVENING. VFR CONDITIONS AGAIN FOR THE DURATION
OF THE 12Z CYCLE.

EXTENDED AVIATION OUTLOOK...VFR CONDITIONS ARE EXPECTED.

&&

.MARINE...
THE CHARLESTON PILOT BOAT REPORTED 30-35 KNOT WINDS...GIVEN THE
TIGHT GRADIENT DEPICTED BY SURFACE PRESSURE ANALYSIS...EXTENDED
THE GALE WARNING FOR SOUTH CAROLINA NEARSHORE WATERS...OUTSIDE
CHARLESTON HARBOR...UNTIL 5 PM. THEN...EXPECT A TRANSITION TO
SMALL CRAFT ADVISORY CONDITIONS ACROSS SC NEARSHORE WATERS.

OTHERWISE...ONGOING GALE WARNINGS FOR GA COASTAL WATERS...AND
SMALL CRAFT ADVISORY FOR CHARLESTON HARBOR...AND ASSOCIATED
FORECASTS FOR SEAS...REMAIN ON TRACK.

GALES AND HIGH SEAS WILL PERSIST ACROSS THE GEORGIA NEARSHORE WATERS
TONIGHT...AND ON THE OUTER GEORGIA WATERS INTO TUESDAY. THEN...SMALL
CRAFT ADVISORY WINDS/SEAS WILL PERSIST ACROSS THE GEORGIA COASTAL
WATERS THROUGH WEDNESDAY. ACROSS SOUTH CAROLINA COASTAL
WATERS...WINDS WILL DIMINISH BELOW ADVISORY THRESHOLDS TUESDAY
THROUGH THURSDAY...BUT ADVISORY CRITERIA SEAS WILL LIKELY PERSIST
THROUGH MIDWEEK.

A COLD FRONT WILL PUSH THROUGH THE WATERS DURING THE THURSDAY
NIGHT/FRIDAY MORNING TIME FRAME. THE FRONT WILL PROBABLY STALL NEAR
THE GULF STREAM...THUS THE STRONG HIGH PRESSURE TO THE N WILL
COMBINE WITH THE FRONTAL ZONE TO CREATE A TIGHT PRESSURE GRADIENT.
MARINE FLAGS WILL LIKELY BE REQUIRED FOR FRIDAY INTO SATURDAY.

RIP CURRENTS...STRONG WINDS WILL CONTRIBUTE TO A HIGH RISK FOR RIP
CURRENTS ON ALL AREA BEACHES MONDAY. AN ELEVATED RISK FOR RIP
CURRENTS WILL LIKELY PERSIST INTO MIDWEEK.

&&

.TIDES/COASTAL FLOODING...
THE IMPRESSIVE PINCHED SFC PRES GRAD IS STRONGER THAN MODELS HAVE
BEEN INDICATING THIS MORNING. OBSERVED TIDAL DEPARTURES AT SUCCESSIVE
LOW AND HIGH TIDE CYCLES AT DOWNTOWN CHARLESTON AND FORT PULASKI
GEORGIA HAVE BEEN ON A STEADY INCREASE. AS HIGH ASTRONOMICAL TIDES
APPROACH MID TO LATE MORNING...WIND-WAVE ACTION WILL BE VERY
STRONG AND THERE IS POTENTIAL FOR VERY SIGNIFICANT BEACH EROSION
AND HIGH-END MODERATE COASTAL FLOODING. VULNERABLE BEACHES STILL
EXPOSED FROM A PREVIOUS COASTAL TIDE/WAVE EVENT LESS THAN A MONTH
AGO WILL BE MOST AT RISK. EVEN THOUGH COASTAL WINDS ARE STRONGER
TODAY THAN THE EARLY OCTOBER EVENT...THE INGREDIENT WE DO NOT HAVE
THIS TIME IS A LARGER PRE-ESTABLISHED SWELL COMPONENT.

DESPITE THE LACK OF LONGER PERIOD SWELLS...GIVEN THE RECENT SYNOPTIC
TRENDS WE HAVE SEEN THIS MORNING...THE COMBINATION OF PREDICTED 7
AND 9 FT TIDES AT CHARLESTON AND SAVANNAH RESPECTIVELY AROUND
MIDDAY...PLUS THE KIND OF WIND/WAVE ACTION EXPECTED...WE THINK
THAT BEACH EROSION WILL BE LOCALLY SIGNIFICANT AROUND HIGH TIDE UP
AND DOWN OUR COAST.

THE TIMING OF THESE NE GALES WITH SOME OF THE HIGHEST TIDES OF
THE YEAR IS AN UNFORTUNATE SETUP WHICH IS PROMPTING THE ISSUANCE
OF A COASTAL FLOOD WARNING FOR THE HIGH TIDE PERIOD MIDDAY. WHILE
SIGNIFICANT OVERWASH PROBLEMS ARE UNLIKELY...FLOOD PRONE AREAS OF
DOWNTOWN CHARLESTON AND MAYBE HIGHWAY 80 IN CHATHAM COUNTY SHOULD
TAKE ON MODERATE WATER LEVELS WHILE INTENSE WIND AND WAVE ACTION
POUNDS EXPOSED BEACHES AND BARRIER ISLANDS. THE BEST ONSHORE
TRAJECTORIES FAVOR ST. CATHERINES AND SAPELO AREAS FOR A POSSIBLE
HIGHER-END DAMAGING TIDE CYCLE TODAY.

TUESDAY AROUND MIDDAY...PREDICTED TIDES WILL BE LOWER...BUT WITH
STRONG WINDS HIGH TIDE WILL BE VERY CLOSE TO COASTAL FLOOD ADVISORY
CRITERIA.

&&

.CHS WATCHES/WARNINGS/ADVISORIES...
GA...COASTAL FLOOD WARNING UNTIL 2 PM EDT THIS AFTERNOON FOR GAZ117-
     119-139-141.
     HIGH SURF ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR GAZ117-119-139-
     141.
SC...COASTAL FLOOD WARNING UNTIL 2 PM EDT THIS AFTERNOON FOR
     SCZ048>051.
     HIGH SURF ADVISORY UNTIL 8 PM EDT WEDNESDAY FOR SCZ048>051.
     LAKE WIND ADVISORY UNTIL 10 PM EDT THIS EVENING FOR SCZ045.
MARINE...GALE WARNING UNTIL 5 PM EDT THIS AFTERNOON FOR AMZ350-352.
     GALE WARNING UNTIL 5 AM EDT TUESDAY FOR AMZ354.
     GALE WARNING UNTIL 5 PM EDT TUESDAY FOR AMZ374.
     SMALL CRAFT ADVISORY UNTIL MIDNIGHT EDT TONIGHT FOR AMZ330.

&&
Hazardous weather outlook, Oct 29, 9:27 AM EST, 43 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHARLESTON SC
1027 AM EDT MON OCT 29 2007

GAZ087-088-099>101-114>116-118-137-138-140-SCZ040-042>044-047-301000-
JENKINS-SCREVEN-CANDLER-BULLOCH-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-INLAND CHATHAM-LONG-INLAND LIBERTY-INLAND MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-INLAND JASPER-
1027 AM EDT MON OCT 29 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST GEORGIA AND
SOUTHEAST SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

GAZ117-119-139-141-SCZ048>051-301000-
COASTAL BRYAN-COASTAL CHATHAM-COASTAL LIBERTY-COASTAL MCINTOSH-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
1027 AM EDT MON OCT 29 2007

...COASTAL FLOOD WARNING IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...
...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM EDT WEDNESDAY...
...HIGH RISK OF RIP CURRENTS TODAY...

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.

   COASTAL FLOOD WARNING.
   HIGH SURF ADVISORY.

RIP CURRENTS...THERE IS A HIGH RISK OF RIP CURRENTS ON AREA
BEACHES TODAY.

.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.

   HIGH SURF ADVISORY.

RIP CURRENTS...AN ELEVATED RISK FOR RIP CURRENTS WILL CONTINUE AT
LEAST UNTIL MID WEEK.

COASTAL FLOODING...HIGH ASTRONOMICAL TIDES AND STRONG NORTHEAST
WINDS WILL IMPACT THE COAST THROUGH TUESDAY. THIS COMBINATION
COULD PRODUCE SHALLOW COASTAL FLOODING AROUND THE TIME OF THE
TUESDAY MIDDAY HIGH TIDE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...WE
REQUEST REPORTS OF HIGH SURF...BEACH EROSION...RIP CURRENTS AND
COASTAL FLOODING.

SCZ045-301000-
BERKELEY-
1027 AM EDT MON OCT 29 2007

...LAKE WIND ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR
LAKE MOULTRIE...

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.

   LAKE WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ350-352-301000-
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
1027 AM EDT MON OCT 29 2007

...GALE WARNING IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

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.

   GALE WARNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ354-301000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM...INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
1027 AM EDT MON OCT 29 2007

...GALE WARNING IN EFFECT UNTIL 5 AM EDT TUESDAY...

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.

   GALE WARNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ374-301000-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1027 AM EDT MON OCT 29 2007

...GALE WARNING IN EFFECT UNTIL 5 PM EDT TUESDAY...

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.

   GALE 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.

   GALE WARNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ330-301000-
CHARLESTON HARBOR-
1027 AM EDT MON OCT 29 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Oct 29, 9:22 AM EST, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1022 AM EDT MON OCT 29 2007

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

0715 AM     NON-TSTM WND DMG 12 N EDISTO BEACH       32.66N 80.32W
10/29/2007                   CHARLESTON         SC   NWS EMPLOYEE

            LARGE TREE DOWN PARTIALLY BLOCKING ROUTE 174 NEAR THE
            WASHINGTON MCKENLEY BRIDGE.

&&

REV
Local storm report, Oct 29, 9:39 AM EST, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1039 AM EDT MON OCT 29 2007

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

1035 AM     HIGH SURF        EDISTO BEACH            32.49N 80.32W
10/29/2007                   COLLETON           SC   NWS EMPLOYEE

            NWS EMPLOYEE REPORTED 7 FOOT BREAKERS AT EDISTO BEACH.

&&

REV

Event by event

4 high surf. Local standard time, as filed.

High Surf, Coastal Bryan

When
October 29, 10:10 AM EST to 2:10 PM EST
Where
Coastal Bryan forecast zone
Reported by
Emergency Manager

Significant Beach Erosion took place along area beaches as High Astronomical Tides combined with strong Northeast winds across the coastal waters.

High Surf, Coastal Chatham

When
October 29, 10:10 AM EST to 2:10 PM EST
Where
Coastal Chatham forecast zone
Reported by
Emergency Manager

Significant Beach Erosion took place along area beaches as High Astronomical Tides combined with strong Northeast winds across the coastal waters.

High Surf, Coastal Liberty

When
October 29, 10:10 AM EST to 2:10 PM EST
Where
Coastal Liberty forecast zone
Reported by
Emergency Manager

Significant Beach Erosion took place along area beaches as High Astronomical Tides combined with strong Northeast winds across the coastal waters.

High Surf, Coastal McIntosh

When
October 29, 10:10 AM EST to 2:10 PM EST
Where
Coastal McIntosh forecast zone
Reported by
Emergency Manager

Significant Beach Erosion took place along area beaches as High Astronomical Tides combined with strong Northeast winds across the coastal waters.

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Georgia in 2007Every state in 2007This day in weather historyWarnings in Georgia, October 2007

Sources

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: 59422, 59423, 59424, 59425.