Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 209, NWS Charleston, SC

August 10, 2011Berkeley County, Charleston County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Aug 10, 2011, 3:48 PM EDT for Berkeley County, Charleston County, South Carolina. It was in force for 57 min. 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
Aug 10, 2011, 3:48 PM EDT (19:48 UTC)
Expired
Aug 10, 2011, 4:45 PM EDT
In force
57 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Berkeley County, SC, Charleston County, SC

The radar

The Charleston,SC radar (KCLX), 114 km from the middle of the area, began a volume at 19:47 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
Aug 10, 4:30 PM EDTMARINE TSTM WIND 401 E Charleston, SCTHE CHARLESTON HARBOR TIDE GAGE RECORDED A WIND GUST TO 34 KNOTS.

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

Did it verify

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

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.8 hours before the alert went out and 20 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 2011-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 687 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2011-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939Sfc1 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
687 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
938 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

570 
WUUS52 KCHS 101948
SVRCHS
SCC015-019-102045-
/O.NEW.KCHS.SV.W.0209.110810T1948Z-110810T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
348 PM EDT WED AUG 10 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL BERKELEY COUNTY IN SOUTHEAST SOUTH CAROLINA...
  CENTRAL CHARLESTON COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 445 PM EDT

* AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR WANDO...MOVING SOUTHEAST AT 10 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  WANDO...DON HOLT BRIDGE...CAINHOY...DANIEL ISLAND...CHARLESTON
  NAVAL COMPLEX...MOUNT PLEASANT REGIONAL AIRPORT...BOONE HALL
  PLANTATION...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024.

&&

LAT...LON 3279 7973 3277 7981 3275 7984 3275 7987
      3273 7986 3268 7989 3268 7990 3296 7999
      3301 7983 3285 7968
TIME...MOT...LOC 1948Z 332DEG 8KT 3292 7989

$$

JAQ
3 follow-up statements
202 
WWUS52 KCHS 102006
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
406 PM EDT WED AUG 10 2011

SCC015-019-102045-
/O.CON.KCHS.SV.W.0209.000000T0000Z-110810T2045Z/
CHARLESTON SC-BERKELEY SC-
406 PM EDT WED AUG 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR EXTREME SOUTH CENTRAL BERKELEY AND CENTRAL CHARLESTON COUNTIES...

AT 401 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR
BERESFORD...OR ABOUT 6 MILES NORTH OF MOUNT PLEASANT...MOVING
SOUTHEAST AT 15 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BOONE HALL
PLANTATION...CAINHOY...CAPERS INLET...DANIEL ISLAND...FORT JOHNSON...
FORT SUMTER...ISLE OF PALMS...MOUNT PLEASANT...MOUNT PLEASANT
REGIONAL AIRPORT...MOUNT PLEASANT TOWNE CENTRE...SULLIVANS ISLAND AND
WANDO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT. WEATHER CONDITIONS WILL RAPIDLY DETERIORATE AS STORMS
APPROACH. SEEK SHELTER IN A STURDY BUILDING...MOVE TO AN INTERIOR
ROOM AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3292 7995 3297 7980 3285 7968 3279 7973
      3277 7981 3275 7984 3275 7987 3273 7986
      3268 7989 3268 7990
TIME...MOT...LOC 2006Z 323DEG 12KT 3287 7986

$$

JAQ
948 
WWUS52 KCHS 102034
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
434 PM EDT WED AUG 10 2011

SCC015-102044-
/O.CAN.KCHS.SV.W.0209.000000T0000Z-110810T2045Z/
BERKELEY SC-
434 PM EDT WED AUG 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTH CENTRAL BERKELEY
COUNTY HAS BEEN CANCELLED...

LAT...LON 3275 7984 3275 7987 3273 7986 3268 7990
      3275 7992 3276 7988 3278 7990 3277 7991
      3280 7993 3281 7992 3281 7990 3286 7990
      3286 7978 3280 7974
TIME...MOT...LOC 2034Z 323DEG 12KT 3280 7979

$$

SCC019-102045-
/O.CON.KCHS.SV.W.0209.000000T0000Z-110810T2045Z/
CHARLESTON SC-
434 PM EDT WED AUG 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR CENTRAL CHARLESTON COUNTY...

AT 430 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR SEASIDE
FARMS...OR ABOUT OVER MOUNT PLEASANT...MOVING SOUTHEAST AT 15 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BOONE HALL
PLANTATION...FORT JOHNSON...FORT SUMTER...ISLE OF PALMS...MOUNT
PLEASANT...MOUNT PLEASANT TOWNE CENTRE AND SULLIVANS ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT HAIL OR WIND DAMAGE...CONTACT THE CHARLESTON NATIONAL
WEATHER SERVICE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV. REPORTS CAN ALSO BE SENT THROUGH TWITTER USING
#WXREPORT.

&&

LAT...LON 3275 7984 3275 7987 3273 7986 3268 7990
      3275 7992 3276 7988 3278 7990 3277 7991
      3280 7993 3281 7992 3281 7990 3286 7990
      3286 7978 3280 7974
TIME...MOT...LOC 2034Z 323DEG 12KT 3280 7979

$$
611 
WWUS52 KCHS 102040
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT WED AUG 10 2011

SCC019-102050-
/O.EXP.KCHS.SV.W.0209.000000T0000Z-110810T2045Z/
CHARLESTON SC-
440 PM EDT WED AUG 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHARLESTON COUNTY WILL
EXPIRE AT 445 PM EDT...

AT 439 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED
THE WARNING HAD WEAKENED...THUS THE SEVERE THUNDERSTORM WARNING HAS
BEEN ALLOWED TO EXPIRE.

ALTHOUGH THE SEVERE THUNDERSTORM WARNING IS NO LONGER IN EFFECT...
THUNDERSTORMS ARE STILL CAPABLE OF PRODUCING GUSTY WINDS...SMALL
HAIL...FREQUENT LIGHTNING AND HEAVY RAINFALL. THE SAFEST COURSE OF
ACTION IS TO REMAIN INDOORS UNTIL THE STORMS HAVE PASSED.

LAT...LON 3275 7984 3275 7987 3273 7986 3268 7990
      3275 7992 3276 7988 3278 7990 3277 7991
      3280 7993 3281 7992 3281 7990 3286 7990
      3286 7978 3280 7974
TIME...MOT...LOC 2040Z 323DEG 12KT 3278 7978

$$

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 10, 3:45 PM EDT, 3 minutes earlier.

Area forecast discussion, Aug 10, 3:45 PM EDT, 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON SC
345 PM EDT WED AUG 10 2011

.SYNOPSIS...
A WEAK TROUGH OF LOW PRESSURE WILL REMAIN OVER THE SOUTHEAST STATES
INTO THE UPCOMING WEEKEND. A COLD FRONT WILL APPROACH THE AREA FROM
THE NORTHWEST SUNDAY AND MOVE THROUGH THE REGION MONDAY. HIGH
PRESSURE WILL THEN REBUILD OVER THE AREA THROUGH THE MIDDLE OF
NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
ISOLATED SHOWERS AND STORMS EARLY THIS EVENING WILL DIMINISH WITH
THE LOSS OF DAYTIME HEATING AND SKIES SHOULD BECOME MOSTLY
CLEAR...ALTHOUGH SOME MID/HIGH CLOUDS COULD STREAM IN FROM THE
WEST LATE AHEAD OF A WEAKENING SHORTWAVE TROUGH. TEMPERATURES
SHOULD GET DOWN INTO THE LOWER TO MID 70S WHICH WILL BE CLOSE TO
THE CROSSOVER TEMPS AND WITH LIGHT WINDS THERE COULD BE SOME LIGHT
FOG. FOR NOW NOT ENOUGH TO MENTION IN THE FORECAST THOUGH.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY/...
THURSDAY...WEAK/DIFFUSE FRONTAL BOUNDARY WILL LINGER OVER THE AREA.
COULD SEE AN ISOLATED SHOWER/TSTM POP ALONG THE SEA BREEZE BY EARLY-
MID AFTERNOON...BUT CONFIDENCE IS NOT HIGH GIVEN MARGINAL
INSTABILITY PROFILES. SLIGHTLY BETTER FORCING IS PROGGED TO MOVE IN
FROM THE NORTHWEST BY LATE AFTERNOON AND PERSIST THROUGH THE EVENING
AS WEAK SHORTWAVE ENERGY CROSSES NORTH CAROLINA AND NORTHERN SOUTH
CAROLINA. THIS MAY HELP OVERCOME THE LACK OF SIGNIFICANT INSTABILITY
AND SUPPORT A SLIGHTLY BETTER CHANCE OF SHOWER/TSTM ACTIVITY...
ESPECIALLY ACROSS THE NORTHERN ZONES. WILL MAINTAIN SLIGHT CHANCE
POPS FOR NOW...BUT AN INCREASE INTO THE CHANCE CATEGORY CAN NOT BE
RULED OUT. GUIDANCE HAS BEEN EXHIBITING A SLIGHT WARM BIAS OVER THE
PAST FEW RUNS...BUT BOTH FORECAST SOUNDINGS AND LOW-LEVEL THICKNESS
SCHEMES SUPPORT HIGHS IN THE MID-UPPER 90S WITH A SMALL CORRIDOR OF
100 DEGREE TEMPERATURES FROM SYLVANIA AND MILLEN SOUTH TO METTER...
CLAXTON AND STATESBORO. SHOULD SEE DEWPOINTS MIX OUT ENOUGH TO KEEP
HEAT INDICES BELOW HEAT ADVISORY CRITERIA. LOWS THURSDAY NIGHT WILL
RANGE FROM THE LOWER-MID 70S INLAND WITH MID-UPPER 70S AT THE COAST.

FRIDAY...MORE SUBSTANTIAL SHORTWAVE ENERGY COUPLED WITH AN INCREASE
IN 850-700MB THETA-E WILL SUPPORT A GENERAL INCREASE IN SHOWER/TSTM
ACTIVITY DURING THE AFTERNOON HOURS. ISOLATED ACTIVITY COULD
INITIATE BY EARLY AFTERNOON ALONG THE SEA BREEZE WITH CONVECTION
BECOMING MORE SCATTERED INLAND MID-LATE AFTERNOON AS BOUNDARY
INTERACTIONS OCCUR. A 20/30 POP REGIME WILL SUFFICE FOR NOW--HIGHEST
INLAND--BUT AN INCREASE IN POPS MAY BE NECESSARY ESPECIALLY WEST OF
THE I-95 CORRIDOR AS CONVECTIVE TRENDS BECOME MORE APPARENT. HIGHS
IN THE LOWER 90S COAST WITH MID 90S INLAND LOOK ON TRACK WITH
OVERNIGHT LOWS LOWER-MID 70S INLAND WITH MID-UPPER 70S COAST.

SATURDAY...ZONAL FLOW WILL DOMINATE WITH BROAD SUBTROPICAL HIGH
PRESSURE EXTENDING WEST FROM THE ATLANTIC. EXPECT A FAIRLY STANDARD
CONVECTIVE REGIME FOR LATE SUMMER WITH ISOLATED-SCATTERED SHOWERS/
TSTMS. HIGHS WILL BE IN THE LOWER-MID 90S WITH LOWS IN THE 70S.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
MODEL GUIDANCE IS IN FAIRLY GOOD AGREEMENT SHOWING DEEP MOISTURE
INCREASING OVER THE AREA SATURDAY NIGHT THROUGH SUNDAY NIGHT AS A
COLD FRONT APPROACHES FROM THE NORTHWEST. THERE IS SOME MINOR
DIFFERENCES IN HOW QUICKLY THE COLD FRONT PROGRESSES
THROUGH THE REGION...BUT ALL SOLUTIONS SUGGEST IT WILL PUSH OFFSHORE
BY MONDAY NIGHT. HIGH PRESSURE IS THEN EXPECTED TO BUILD BACK OVER
THE REGION TUESDAY THROUGH WEDNESDAY.

AS FOR FORECAST DETAILS...WILL KEEP SHOWERS/THUNDERSTORMS MENTIONED
EACH PERIOD SATURDAY NIGHT THROUGH MONDAY...WITH THE HIGHEST
PROBABILITIES EXPECTED ON SUNDAY. RAIN FREE CONDITIONS SHOULD THEN
PREVAIL MONDAY NIGHT THROUGH WEDNESDAY AS HIGH PRESSURE AND A
SLIGHTLY COOLER AND LESS HUMID AIRMASS MOVES INTO THE REGION.

&&

.AVIATION /20Z WEDNESDAY THROUGH MONDAY/...
VFR TO PREVAIL. FEW CB AND SHOWERS NEAR KCHS SO WILL CONSIDER
AMENDMENTS SHORTLY. TONIGHT...FORECAST SOUNDINGS SHOW POTENTIAL
FOR SOME FOG WITH MVFR VSBYS AS CROSSOVER TEMPERATURES ARE
APPROACHED AND/OR MET SO INTRODUCED A TEMPO GROUP FROM 8-12Z TO
COVER THIS POTENTIAL.

EXTENDED AVIATION OUTLOOK...THERE ARE NO CONCERNS WITH A GREATER
THAN 30 PERCENT CONFIDENCE.

&&

.MARINE...
TONIGHT...A WEAK COLD FRONT IS EXPECTED TO REMAIN STALLED NORTH
OF THE AREA AND WITH A WEAK PRESSURE PATTERN IN PLACE...NO
SIGNIFICANT WINDS OR SEAS ARE EXPECTED.

THURSDAY THROUGH MONDAY...A TYPICAL LATE SUMMER LIGHT WIND REGIME
WILL DOMINATE THROUGH MUCH OF THE PERIOD. COULD SEE A MODEST
NOCTURNAL SURGE DEVELOP SUNDAY NIGHT AHEAD OF AN APPROACHING COLD
FRONT...BUT BOTH WINDS AND SEAS LOOK TO REMAIN BELOW SMALL CRAFT
ADVISORY THRESHOLDS. A COLD FRONT WILL PUSH OFFSHORE MONDAY.

&&

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

&&

RJB/ST
Hazardous weather outlook, Aug 10, 11:22 AM EDT, 4 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
1122 AM EDT WED AUG 10 2011

AMZ330-350-352-354-374-GAZ087-088-099-100-114-115-SCZ040-042>045-
111000-
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 EXTENDING FROM 20 TO
60 NM-JENKINS-SCREVEN-CANDLER-BULLOCH-TATTNALL-EVANS-ALLENDALE-
HAMPTON-INLAND COLLETON-DORCHESTER-INLAND BERKELEY-
1122 AM EDT WED AUG 10 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

GAZ101-116>119-137>141-SCZ047>052-111000-
EFFINGHAM-INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-
LONG-INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
INLAND JASPER-BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
TIDAL BERKELEY-
1122 AM EDT WED AUG 10 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

EXCESSIVE HEAT...THE COMBINATION OF HIGH TEMPERATURES AND MODERATE
HUMIDITY IS EXPECTED TO LEAD TO HEAT INDEX VALUES AROUND 105
DEGREES THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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, Aug 10, 11:07 AM EDT, 4 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1107 AM EDT WED AUG 10 2011

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

0847 PM     TSTM WND DMG     1 S SHADOWMOSS          32.84N  80.07W
08/09/2011                   CHARLESTON         SC   SOCIAL MEDIA

            TREE DOWN AT SHADOWMOSS GOLF COURSE. TIME ESTIMATED
            FROM RADAR. REPORT RELAYED VIA TWITTER.

&&

EVENT NUMBER CHS1100802
Local storm report, Aug 10, 11:34 AM EDT, 4 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHARLESTON SC
1134 AM EDT WED AUG 10 2011

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

0500 PM     TSTM WND DMG     METTER                  32.40N  82.06W
08/08/2011                   CANDLER            GA   TRAINED SPOTTER

            A SPOTTER REPORTED NUMEROUS TREES DOWN ON HIGHWAYS 21
            AND 23 AND HOPE VALLEY CIRCLE ROAD. A THREE SIDE METAL
            BUILDING WAS ALSO ROLLED BACK 60 FEET FROM THE ORIGINAL
            FOUNDATION. THE BUILDING WAS APPROXIMATELY 42000 SQUARE
            FEET. TIME ESTIMATED BY RADAR.

0532 PM     TSTM WND DMG     4 ENE SPRINGFIELD       32.39N  81.32W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES IN ROADWAY IN THE OLD DIXIE AND KEIFFER HILL ROAD
            AREA. TIME OF EVENT ESTIMATED BASED ON RADAR.

0532 PM     TSTM WND DMG     3 ENE SPRINGFIELD       32.38N  81.33W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            THREE TRAFFIC LIGHTS BLOWN OFF LINES AT GA HIGHWAY 21
            NORTH AND OLD TUSCULUM ROAD. TIME OF EVENT ESTIMATED
            BASED ON RADAR.

0535 PM     TSTM WND DMG     SPRINGFIELD             32.37N  81.38W
08/08/2011                   EFFINGHAM          GA   TRAINED SPOTTER

            NUMEROUS REPORTS OF LARGE TREES DOWN AND TRAFFIC LIGHTS
            TORN OFF.

0536 PM     TSTM WND DMG     3 WNW STILLWELL         32.40N  81.29W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON ROADWAY AND POWERLINES AT 2000 BLOCK OF
            GEORGIA HIGHWAY 119 NORTH. TIME OF EVENT ESTIMATED BASED
            ON RADAR.

0536 PM     TSTM WND DMG     2 WNW STILLWELL         32.39N  81.28W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            AIRCRAFT HANGER ROOF AND DOOR BLOWN OFF AND AIRCRAFT
            DAMAGED AT 940 MOCK ROAD. EVENT TIME ESTIMATED BASED ON
            RADAR.

0536 PM     TSTM WND DMG     2 W STILLWELL           32.38N  81.28W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            BARN COLLAPSE AND DAMAGE TO TWO OTHER FARM STRUCTURES
            FROM TREES AT 532 MOCK ROAD. TIME OF EVENT ESTIMATED
            BASED ON RADAR.

0536 PM     TSTM WND DMG     3 W STILLWELL           32.37N  81.31W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON ROADWAY AND ON A VEHICLE ON CEDAR STREET.
            TIME OF EVENT ESTIMATED BASED ON RADAR.

0536 PM     TSTM WND DMG     3 WSW STILLWELL         32.37N  81.30W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON ROADWAY...POWERLINES AND BRIDGE ON
            STILLWELL ROAD. BRIDGE HAS MINOR DAMAGE. TIME ESTIMATED
            BASED ON RADAR.

0548 PM     TSTM WND DMG     2 SSW STILLWELL         32.36N  81.27W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON THE ROADWAY AND ON POWERLINES AT THE 800
            BLOCK OF LOGS LANDING ROAD. ONE TREE ON A HOUSE
            RESULTING IN MINOR DAMAGE. TIME OF EVENT ESTIMATED BASED
            ON RADAR.

0552 PM     TSTM WND DMG     2 SSE STILLWELL         32.35N  81.23W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON THREE HOMES...SMALL TREES UPROOTED AND
            FENCES DAMAGED ON EBENEZER ROAD IN THE COBBLETON
            SUBDIVISION. TIME ESTIMATED BASED ON RADAR.

0552 PM     TSTM WND DMG     2 SSE STILLWELL         32.35N  81.23W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREES DOWN ON ROADWAY AND ON FIVE HOMES ON EBENEZER
            ROAD IN THE BROOKSTONE SUBDIVISION. ONE HOME SUFFERED
            MODERATE DAMAGE. TIME ESTIMATED BASED ON RADAR.

0552 PM     TSTM WND DMG     2 SSE STILLWELL         32.35N  81.24W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            DAMAGE TO ROOF OF EBENEZER MIDDLE SCHOOL. DAMAGE
            ESTIMATED AT 20000 DOLLARS. TIME ESTIMATED BASED ON
            RADAR.

0600 PM     TSTM WND DMG     METTER                  32.40N  82.06W
08/08/2011                   CANDLER            GA   911 CALL CENTER

            REPORT OF TREES DOWN ALONG HIGHWAY 121 NORTH.

0604 PM     TSTM WND DMG     1 N RINCON              32.31N  81.24W
08/08/2011                   EFFINGHAM          GA   EMERGENCY MNGR

            TREE ON BUILDING AT METHODIST CAMPGROUND. TIME
            ESTIMATED BASED ON RADAR.

0628 PM     TSTM WND DMG     2 SW RICHMOND HILL      31.92N  81.32W
08/08/2011                   BRYAN              GA   SOCIAL MEDIA

            TREES DOWN ON POWERLINES ALONG HARRIS TRAIL ROAD NEAR
            RICHMOND HILL HIGH SCHOOL. REPORTED RECEIVED VIA
            TWITTER.

0630 PM     TSTM WND DMG     2 E RICHMOND HILL       31.94N  81.27W
08/08/2011                   CHATHAM            GA   TRAINED SPOTTER

            SPOTTER REPORTED SEVERAL TREES DOWN 2 MILES EAST OF
            RICHMOND HILL.

0645 PM     TSTM WND DMG     8 ENE SYLVANIA          32.80N  81.51W
08/08/2011                   SCREVEN            GA   LAW ENFORCEMENT

            A SHERIFF DEPARTMENT REPORTED 1 TREE DOWN ON MOUTH OF
            THE CREEK ROAD AND MINOR ROOF DAMAGE TO A RESIDENCE ON
            BRANNENS BRIDGE ROAD.

0653 PM     TSTM WND DMG     1 ENE BURROUGHS         31.98N  81.23W
08/08/2011                   CHATHAM            GA   BROADCAST MEDIA

            BROADCAST MEDIA RELAYED A REPORT OF TREES DOWN IN
            GEORGETOWN. EVENT TIME ESTIMATED BASED ON RADAR.

0715 PM     TSTM WND DMG     2 W WHITE BLUFF         31.99N  81.16W
08/08/2011                   CHATHAM            GA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED SEVERAL TREES DOWN IN THE
            WILSHIRE ESTATES SUBDIVISION.

0715 PM     TSTM WND DMG     1 WSW WHITE BLUFF       31.98N  81.14W
08/08/2011                   CHATHAM            GA   TRAINED SPOTTER

            SPOTTER REPORTED A TREE DOWN ACROSS POWERLINES ON VAN
            NUYS BLVD. SEVERAL SMALL BRANCHES DOWN ACROSS THE AREA.

0718 PM     TSTM WND DMG     1 ESE WILMINGTON ISLAND 32.00N  80.97W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            TREE DOWN AND BLOCKING ENTRANCE OF OLDE TOWN
            SUBDIVISION.

0722 PM     TSTM WND DMG     2 NNW SANDFLY           32.02N  81.08W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            TREE BLOCKING THE 1500 BLOCK OF BACON PARK DRIVE.

0725 PM     TSTM WND DMG     2 NE WHITE BLUFF        32.02N  81.11W
08/08/2011                   CHATHAM            GA   PUBLIC

            REPORT OF A LARGE TREE DOWN ON 518 WHEELER STREET.

0739 PM     TSTM WND DMG     2 ESE RIVERSIDE         32.04N  80.97W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            TREE FELL ON HOME AT 108 FALLIGANT ROAD.

0740 PM     TSTM WND DMG     SUNBURY                 31.77N  81.28W
08/08/2011                   LIBERTY            GA   911 CALL CENTER

            AN EMERGENCY MANAGER REPORTED A 30 FEET RESCUE PLATOON
            BOAT AND 3 ADDITIONAL BOATS SUNK NEAR THE SUNBURY BOAT
            RAMP ON FORT MORRIS ROAD DUE TO STRONG WINDS. HEAVY RAIN
            ALSO A CONTRIBUTING FACTOR.

0740 PM     TSTM WND DMG     BURROUGHS               31.97N  81.24W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            TREE DOWN AT THE INTERSECTION OF CHEVIS ROAD AND WILD
            HERRON ROAD.

0742 PM     TSTM WND DMG     2 SSW THUNDERBOLT       32.01N  81.06W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            LARGE TREE DOWN ON 2800 BLOCK OF AIMAR AVENUE.

0816 PM     TSTM WND DMG     1 NW SAVANNAH           32.06N  81.10W
08/08/2011                   CHATHAM            GA   COUNTY OFFICIAL

            LARGE TREE LIMB DOWN ON EAST 34TH AND DRAYTON STREET.

0848 PM     TSTM WND DMG     4 W SUNBURY             31.76N  81.36W
08/08/2011                   LIBERTY            GA   911 CALL CENTER

            911 CENTER RELAYED A REPORT FROM THE PUBLIC OF TREES
            DOWN ON BRIGDON ROAD.

&&

EVENT NUMBER CHS1100744 CHS1100789 CHS1100794 CHS1100745 CHS1100790
CHS1100791 CHS1100792 CHS1100795 CHS1100796 CHS1100793 CHS1100798
CHS1100799 CHS1100800 CHS1100747 CHS1100797 CHS1100761 CHS1100746
CHS1100759 CHS1100751 CHS1100750 CHS1100760 CHS1100754 CHS1100755
CHS1100748 CHS1100756 CHS1100749 CHS1100757 CHS1100758 CHS1100753
CHS1100752
Special weather statement, Aug 10, 11:34 AM EDT, 4 hours 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1134 AM EDT WED AUG 10 2011

GAZ101-116>119-137>141-SCZ047>052-102200-
EFFINGHAM-INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-
COASTAL CHATHAM-LONG-INLAND LIBERTY-COASTAL LIBERTY-
INLAND MCINTOSH-COASTAL MCINTOSH-INLAND JASPER-BEAUFORT-
COASTAL COLLETON-CHARLESTON-COASTAL JASPER-TIDAL BERKELEY-
1134 AM EDT WED AUG 10 2011

...ANOTHER HOT AND MUGGY AFTERNOON ACROSS THE AREA...

TEMPERATURES IN THE MID TO UPPER 90S COMBINED WITH MODERATE LEVELS
OF HUMIDITY ARE EXPECTED TO LEAD TO HEAT INDEX VALUES REACHING
CLOSE TO 105 DEGREES THIS AFTERNOON.

PEOPLE ARE URGED TO TAKE PROPER HEAT SAFETY PRECAUTIONS IF THEY
WILL BE WORKING OUTSIDE...INCLUDING LIMITING THEIR TIME
OUTDOORS...WEARING LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINKING PLENTY OF NON ALCOHOLIC BEVERAGES.
Local storm report, Aug 10, 11:35 AM EDT, 4 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHARLESTON SC
1135 AM EDT WED AUG 10 2011

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

0605 PM     TSTM WND DMG     METTER                  32.40N  82.06W
08/09/2011                   CANDLER            GA   LAW ENFORCEMENT

            TREES BLOWN DOWN ON SEVERAL HOUSES IN METTER.

0608 PM     TSTM WND DMG     2 SSE METTER            32.37N  82.05W
08/09/2011                   CANDLER            GA   LAW ENFORCEMENT

            TREES AND POWERLINES BLOWN DOWN ON SEVERAL CARS AT THE
            HIGH SCHOOL JUST SOUTH OF DOWNTOWN METTER.

0615 PM     TSTM WND DMG     1 SW ROCKY FORD         32.65N  81.84W
08/09/2011                   SCREVEN            GA   911 CALL CENTER

            TREES DOWN ALONG ROCKY FORD ROAD.

0630 PM     TSTM WND DMG     REIDSVILLE              32.09N  82.12W
08/09/2011                   TATTNALL           GA   911 CALL CENTER

            THE TATTNALL COUNTY WARNING POINT REPORTED NUMEROUS
            TREES DOWN IN REIDSVILLE...GEORGIA. ONE TREE WAS
            REPORTED DOWN ON A HOME.

0645 PM     TSTM WND DMG     5 NNE CLAXTON           32.22N  81.88W
08/09/2011                   EVANS              GA   PUBLIC

            TREES DOWN ALONG HIGHWAY 301 NORTH.

0645 PM     TSTM WND DMG     3 SSE STILSON           32.29N  81.53W
08/09/2011                   BULLOCH            GA   911 CALL CENTER

            NUMEROUS REPORTS OF TREES DOWN IN HUBERT...STILSON AND
            ARCOLA. TIME ESTIMATED BY RADAR.

0650 PM     TSTM WND DMG     1 NW ALMEDA             32.84N  81.06W
08/09/2011                   HAMPTON            SC   BROADCAST MEDIA

            TREES DOWN ON HIGHWAY 278 AND HIGHWAY 68...NEAR
            VARNVILLE.

0650 PM     TSTM WND DMG     CUMMINGS                32.79N  80.99W
08/09/2011                   HAMPTON            SC   BROADCAST MEDIA

            ROOF RIPPED OFF OF A TRAILOR AND SEVERAL PECAN TREES
            UPROOTED. TIME ESTIMATED BY RADAR

0710 PM     TSTM WND DMG     GLENNVILLE              31.94N  81.93W
08/09/2011                   TATTNALL           GA   911 CALL CENTER

            THE TATTNALL COUNTY WARNING POINT REPORTED TREES AND
            POWERLINES DOWN IN GLENNVILLE...GEORGIA.

0717 PM     TSTM WND DMG     TILLMAN                 32.46N  81.11W
08/09/2011                   JASPER             SC   911 CALL CENTER

            THE JASPER COUNTY WARNING POINT REPORTED NUMEROUS TREES
            DOWN AROUND TILLMAN...SOUTH CAROLINA.

0727 PM     TSTM WND DMG     2 SSW RIDGELAND         32.46N  80.99W
08/09/2011                   JASPER             SC   911 CALL CENTER

            THE JASPER COUNTY WARNING POINT REPORTED NUMEROUS TREES
            DOWN AROUND MITCHELLVILLE...SOUTH CAROLINA.

0741 PM     TSTM WND DMG     SHELDON                 32.60N  80.79W
08/09/2011                   BEAUFORT           SC   911 CALL CENTER

            NUMEROUS REPORTS OF TREES DOWN IN SHELDON. TIME
            ESTIMATED BY RADAR.

0741 PM     TSTM WND DMG     1 NE GARDEN CITY        32.11N  81.16W
08/09/2011                   CHATHAM            GA   911 CALL CENTER

            THE CHATHAM COUNTY WARNING POINT REPORTED A TREE DOWN
            ON THE WEST SIDE OF SAVANNAH...GEORGIA.

0758 PM     TSTM WND DMG     2 NNW SANDFLY           32.01N  81.09W
08/09/2011                   CHATHAM            GA   911 CALL CENTER

            THE CHATHAM COUNTY WARNING POINT REPORTED A TREE DOWN
            ON THE SOUTH SIDE OF SAVANNAH...GEORGIA.

0800 PM     MARINE TSTM WIND 4 NW TYBEE ISLAND       32.03N  80.90W
08/09/2011  M43 MPH          CHATHAM            GA   C-MAN STATION

0800 PM     TSTM WND DMG     LADYS ISLAND            32.45N  80.64W
08/09/2011                   BEAUFORT           SC   911 CALL CENTER

            THE BEAUFORT COUNTY WARNING POINT REPORTED SEVERAL
            TREES DOWN ON LADYS ISLAND...SOUTH CAROLINA.

0803 PM     TSTM WND GST     BLUFFTON                32.24N  80.86W
08/09/2011  E62 MPH          BEAUFORT           SC   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED A GUST NEAR 60 MPH. TIME
            ESTIMATED BY RADAR.

0803 PM     TSTM WND DMG     THUNDERBOLT             32.04N  81.05W
08/09/2011                   CHATHAM            GA   911 CALL CENTER

            THE CHATHAM COUNTY WARNING POINT REPORTED A POWER LINE
            DOWN ON THE EAST SIDE OF SAVANNAH...GEORGIA.

0806 PM     TSTM WND DMG     4 WNW HENDERSONVILLE    32.81N  80.80W
08/09/2011                   COLLETON           SC   LAW ENFORCEMENT

            TREE DOWN AT INTERSECTION OF EDWARD ROAD AND BLACK
            CREEK ROAD.

0810 PM     TSTM WND GST     3 E SLANDS BRIDGE       32.97N  80.20W
08/09/2011  E81 MPH          DORCHESTER         SC   TRAINED SPOTTER

            NUMEROUS TREES DOWN AND NICKEL SIZE HAIL ON BACONS
            BRIDGE ROAD.

0810 PM     HAIL             3 E SLANDS BRIDGE       32.97N  80.20W
08/09/2011  M0.88 INCH       DORCHESTER         SC   TRAINED SPOTTER

            NUMEROUS TREES DOWN AND NICKEL SIZE HAIL ON BACONS
            BRIDGE ROAD.

0811 PM     TSTM WND DMG     3 NNW ARCHDALE          32.94N  80.11W
08/09/2011                   DORCHESTER         SC   911 CALL CENTER

            TREE DOWN ON SAWGRASS DRIVE. TIME OF EVENT ESTIMATED
            BASED ON RADAR.

0815 PM     TSTM WND DMG     3 NNW ARCHDALE          32.94N  80.11W
08/09/2011                   DORCHESTER         SC   TRAINED SPOTTER

            NUMEROUS TREES DOWN AND DOWNED POWER LINES AT COOSAW
            CREEK COUNTRY CLUB. TIME ESTIMATED BY RADAR.

0820 PM     TSTM WND DMG     3 E SLANDS BRIDGE       32.96N  80.19W
08/09/2011                   DORCHESTER         SC   TRAINED SPOTTER

            LARGE MAPLE TREE FELL IN YARD ON GLEBE ROAD.

0820 PM     TSTM WND DMG     4 WSW LADSON            32.97N  80.17W
08/09/2011                   DORCHESTER         SC   TRAINED SPOTTER

            TREES DOWN AND POWER LINES ACROSS THE ROAD ON OLD
            TROLLEY ROAD.

0823 PM     TSTM WND DMG     1 ENE MIDDLETON PLACE   32.91N  80.12W
08/09/2011                   DORCHESTER         SC   PUBLIC

            LARGE LARGE TREE WAS SNAPPED MID WAY UP AND FELL ON A
            HOME UNDER CONSTRUCTION IN TAYLOR PLANTATION. TIME OF
            DAMAGE ESTIMATED BY RADAR.

0827 PM     TSTM WND DMG     3 E SLANDS BRIDGE       32.97N  80.20W
08/09/2011                   DORCHESTER         SC   LAW ENFORCEMENT

            TREE IN ROADWAY.

0833 PM     TSTM WND DMG     1 ENE MAGNOLIA GARDENS  32.89N  80.07W
08/09/2011                   CHARLESTON         SC   PUBLIC

            TREE DOWN ON LAMBS ROAD. TIME ESTIMATED BY RADAR.

0847 PM     TSTM WND DMG     1 S SHADOWMOSS          32.84N  80.07W
08/09/2011                   CHARLESTON         SC   SOCIAL MEDIA

            TREE DOWN AT SHADOWMOSS GOLF COURSE. TIME ESTIMATED
            FROM RADAR. REPORT RELAYED VIA TWITTER.

&&

EVENT NUMBER CHS1100762 CHS1100763 CHS1100764 CHS1100786 CHS1100765
CHS1100779 CHS1100766 CHS1100767 CHS1100785 CHS1100768 CHS1100769
CHS1100778 CHS1100782 CHS1100783 CHS1100780 CHS1100788 CHS1100776
CHS1100784 CHS1100772 CHS1100773 CHS1100774 CHS1100781 CHS1100787
CHS1100770 CHS1100771 CHS1100801 CHS1100775 CHS1100777 CHS1100802
Local storm report, Aug 10, 12:34 PM EDT, 3 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1234 PM EDT WED AUG 10 2011

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

0807 PM     TSTM WND DMG     3 S SUMMERVILLE         32.97N  80.17W
08/09/2011                   DORCHESTER         SC   PUBLIC

            NUMEROUS TREES SPLIT IN HALF AND SEVERAL TREES UPROOTED
            IN QUAIL ARBOR V ALONG SYLVAN TERRACE. PUBLIC ALSO
            REPORTED A TREE DOWN ON A CAMPER AND A FENCE BLOWN DOWN.

&&

EVENT NUMBER CHS1100803

JHP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 8:45 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston45 min
Aug 10, 4:43 PM EDTSpecial Weather StatementCHSCharleston62 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011Every severe thunderstorm warning in 2011

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.