Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 165, NWS Charleston, SC

June 20, 2008Colleton County, Hampton County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Jun 20, 2008, 2:01 PM EDT for Colleton County, Hampton County, South Carolina. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 20, 2008, 2:01 PM EDT (18:01 UTC)
Expired
Jun 20, 2008, 3:00 PM EDT
In force
59 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Colleton County, SC, Hampton County, SC

The radar

The Charleston,SC radar (KCLX), 22 km from the middle of the area, began a volume at 18:02 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.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.0 hours before the alert went out and 268 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, Jacksonville, FL at 12:00Z on 2008-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 535 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, Jacksonville, FL at 12:00Z on 2008-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
535 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1363 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jun 20, 1:30 PM EDT, 31 minutes earlier.

Area forecast discussion, Jun 20, 1:30 PM EDT, 31 minutes before
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Hazardous weather outlook, Jun 20, 4:22 AM EDT, 9 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
422 AM EDT FRI JUN 20 2008

AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040-
042>045-047>051-211000-
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-EFFINGHAM-TATTNALL-EVANS-
INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-LONG-
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-
ALLENDALE-HAMPTON-INLAND COLLETON-DORCHESTER-BERKELEY-INLAND JASPER-
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-
422 AM EDT FRI JUN 20 2008

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

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORMS...AS THE SEA BREEZE ADVANCES INLAND...SCATTERED
THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EARLY THIS EVENING.
AS THESE THUNDERSTORMS MOVE TOWARD THE EAST AND SOUTHEAST...A FEW
MAY BECOME SEVERE WITH DAMAGING WIND GUSTS EXCEEDING 60 MPH AND
LARGE HAIL EXCEEDING ONE INCH IN DIAMETER...ESPECIALLY BETWEEN 2
PM AND 9 PM. ANY THUNDERSTORMS MAY ALSO PRODUCE FREQUENT AND
DANGEROUS CLOUD TO GROUND LIGHTNING AND VERY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SEVERE THUNDERSTORMS...A SERIES OF SURFACE AND UPPER LEVEL
DISTURBANCES WILL AFFECT THE SOUTHEASTERN UNITED STATES SATURDAY
THROUGH SUNDAY. THESE DISTURBANCES...IN COMBINATION WITH THE DAILY
AFTERNOON SEA BREEZE AND A CONTINUED UNSTABLE AIRMASS...MAY LEAD TO
A FEW STRONG TO SEVERE THUNDERSTORMS ACROSS SOUTHERN SOUTH CAROLINA
AND SOUTHEAST GEORGIA. THE MAIN HAZARDS FROM THE STRONGEST STORMS
THAT DEVELOP WILL BE GUSTY WINDS...HAIL...FREQUENT CLOUD TO GROUND
LIGHTNING AND HEAVY RAINFALL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

In the hours before

Local storm report, Jun 20, 12:10 PM EDT, 1 hour 51 minutes before
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Local storm report, Jun 20, 12:20 PM EDT, 1 hour 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1220 PM EDT FRI JUN 20 2008

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

1149 AM     TSTM WND GST     EDISTO BEACH            32.49N 80.32W
06/20/2008  M45.00 MPH       COLLETON           SC   MESONET

            REPORT FROM AWS SITE.

&&

33
Local storm report, Jun 20, 12:36 PM EDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1236 PM EDT FRI JUN 20 2008

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

1152 AM     HAIL             EDISTO BEACH            32.49N 80.32W
06/20/2008  E0.50 INCH       COLLETON           SC   PUBLIC

            DIME SIZE HAIL WAS REPORTED AT BIG PLANTATION GOLF COURSE
            IN EDISTO BEACH.

1150 AM     HAIL             EDISTO ISLAND           32.56N 80.30W
06/20/2008  E0.50 INCH       CHARLESTON         SC   PUBLIC

            DIME SIZE HAIL WAS REPORTED IN EDISTO ISLAND. SMALL LIMBS
            DOWN ALSO.

&&

REB
Special weather statement, Jun 20, 12:44 PM EDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1244 PM EDT FRI JUN 20 2008

SCZ045-201715-
BERKELEY-
1244 PM EDT FRI JUN 20 2008

...STRONG THUNDERSTORMS WILL IMPACT BERKELEY COUNTY THROUGH 115 PM
EDT...

AT 1240 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND GUSTY WINDS
OF 30 TO 40 MPH.  THIS STORM WAS LOCATED NEAR BONNEAU BEACH...OR
ABOUT 9 MILES SOUTHWEST OF SAINT STEPHEN...MOVING NORTH AT 18 MPH.

AREAS IN AND AROUND BONNEAU...BONNEAU BEACH...CROSS AND EADYTOWN WILL
BE IMPACTED THROUGH 115 PM EDT.

FREQUENT LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS. IF INDOORS...STAY
AWAY FROM WINDOWS AND DOORS. AVOID USING TELEPHONES UNLESS IT IS AN
EMERGENCY.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

PLEASE CONTACT THE NATIONAL WEATHER SERVICE IN CHARLESTON TOLL FREE
AT 1-888-383-2024 IF YOU OBSERVE SEVERE WEATHER SUCH AS HAIL...DOWNED
TREES...LIMBS AND POWER LINES.
Local storm report, Jun 20, 1:47 PM EDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
147 PM EDT FRI JUN 20 2008

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

0142 PM     HAIL             SAINT STEPHEN           33.40N 79.92W
06/20/2008  E0.25 INCH       BERKELEY           SC   TRAINED SPOTTER

            PEA TO DIME SIZE HAIL WAS REPORTED IN SAINT STEPHEN.

&&

REB
Special weather statement, Jun 20, 1:49 PM EDT, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
149 PM EDT FRI JUN 20 2008

SCZ042-043-201815-
HAMPTON-INLAND COLLETON-
149 PM EDT FRI JUN 20 2008

...STRONG THUNDERSTORMS WILL IMPACT HAMPTON COUNTY AND COLLETON
COUNTY THROUGH 215 PM EDT...

AT 149 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING 1/2 INCH HAIL...AND GUSTY
WINDS OF 35 TO 45 MPH.  THIS STORM WAS LOCATED NEAR MILEY...OR ABOUT
8 MILES NORTHEAST OF HAMPTON...MOVING NORTHEAST AT 11 MPH.

AREAS IN AND AROUND ASHTON...COLLETON...CROCKETVILLE...ISLANDTON...
LODGE...MILEY...PADGETTS...RUFFIN AND WILLIAMS WILL BE IMPACTED
THROUGH 215 PM EDT.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:10 PM EDTSpecial Marine WarningCHS32 min
Jun 20, 10:26 AM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton64 min
Jun 20, 11:35 AM EDTSpecial Marine WarningCHS55 min
Jun 20, 11:41 AM EDTSevere Thunderstorm WarningCHSCharleston, Colleton34 min
Jun 20, 12:26 PM EDTSpecial Marine WarningCHS50 min
Jun 20, 12:56 PM EDTSevere Thunderstorm WarningCHSBerkeley49 min
Jun 20, 1:30 PM EDTSpecial Marine WarningCHS60 min
Jun 20, 1:39 PM EDTSevere Thunderstorm WarningCHSBerkeley51 min
Jun 20, 2:29 PM EDTSevere Thunderstorm WarningCHSBerkeley61 min
Jun 20, 2:56 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Hampton, Jasper64 min
Jun 20, 3:25 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston50 min
Jun 20, 3:46 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Jasper59 min
Jun 20, 3:58 PM EDTSevere Thunderstorm WarningCHSCharleston47 min
Jun 20, 4:03 PM EDTSpecial Marine WarningCHS57 min
Jun 20, 4:04 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester56 min
Jun 20, 4:39 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston66 min
Jun 20, 4:51 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston3 hr
Jun 20, 4:56 PM EDTSpecial Marine WarningCHS94 min
Jun 20, 4:59 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston, Dorchester61 min
Jun 20, 5:02 PM EDTSpecial Marine WarningCHS58 min
Jun 20, 5:18 PM EDTTornado WarningCHSCharleston27 min
Jun 20, 5:30 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston60 min
Jun 20, 5:46 PM EDTSpecial Marine WarningCHS89 min
Jun 20, 6:05 PM EDTFlash Flood WarningCHSCharleston107 min
Jun 20, 6:26 PM EDTSpecial Marine WarningCHS94 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2008Every severe thunderstorm warning in 2008

Sources

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