Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 335, NWS Charleston, SC

October 9, 2008Berkeley County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Oct 9, 2008, 4:30 PM EDT for Berkeley County, South Carolina. It was in force for 30 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: Oct 9, 2008, 4:30 PM EDT (20:30 UTC)
Expired: Oct 9, 2008, 5:00 PM EDT
In force: 30 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon

County Berkeley County, SC

The radar

The Charleston,SC radar (KCLX), 118 km from the middle of the area, began a volume at 20:31 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 9, 10:57 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.5 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 297 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 505 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 93 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 Oct 9, 4:25 PM EDT, 5 minutes earlier.

Area forecast discussion, Oct 9, 4:25 PM EDT, 5 minutes before

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Hazardous weather outlook, Oct 9, 11:27 AM EDT, 5 hours 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHARLESTON SC
1127 AM EDT THU OCT 9 2008

AMZ330-350-352-354-GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-
047>051-101530-
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-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-
1127 AM EDT THU OCT 9 2008

...SEVERE THUNDERSTORM WATCH 914 IN EFFECT UNTIL 6 PM EDT THIS
AFTERNOON...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AMZ374-101530-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1127 AM EDT THU OCT 9 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON...

SEVERE THUNDERSTORMS...AN UPPER LEVEL LOW PRESSURE WILL MOVE INTO
SOUTHERN GEORGIA THIS AFTERNOON. THE ASSOCIATED COLD AIR ALOFT
WILL COMBINE WITH A WARM AND HUMID LOW LEVEL AIRMASS TO SUPPORT
NUMEROUS THUNDERSTORMS THROUGH EARLY EVENING. ISOLATED THUNDERSTORMS
COULD BECOME SEVERE WITH HAIL AT LEAST AS LARGE AS PENNIES AND
DAMAGING WIND GUSTS EXCEEDING 60 MPH.

STRONGEST THUNDERSTORMS WILL MOST LIKELY OCCUR THROUGH 8 PM
ACROSS THE SOUTHEAST GEORGIA COASTAL WATERS.

MONITOR WEATHER CONDITIONS THROUGHOUT THE DAY. YOU CAN OBTAIN THE
LATEST INFORMATION FROM NOAA WEATHER RADIO ALL HAZARDS...LOCAL
TELEVISION OR OTHER LOCAL NEWS SOURCE. INFORMATION IS ALSO
AVAILABLE ON THE INTERNET AT WWW.ERH.NOAA.GOV/CHS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Oct 9, 2:04 PM EDT, 2 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
204 PM EDT THU OCT 09 2008

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

0120 PM     TSTM WND DMG     3 NNW BLOOMINGDALE      32.17N 81.32W
10/09/2008                   EFFINGHAM          GA   LAW ENFORCEMENT

            SEVERAL TREES AND POWER LINES BLOWN DOWN CLOSING ROADS.
            SOME MINOR STRUCTURAL DAMAGE. REPORT RELAYED BY EMERGENCY
            MANAGEMENT.

&&

FWA

Local storm report, Oct 9, 2:52 PM EDT, 1 hour 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
252 PM EDT THU OCT 09 2008

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

0232 PM     TSTM WND DMG     BEAUFORT                32.44N 80.68W
10/09/2008                   BEAUFORT           SC   PUBLIC

            PUBLIC REPORTED A LARGE BRANCH DOWN ON ROADWAY NEAR THE
            INTERSECTION OF RIBAUT ROAD AND HERMITAGE ROAD.

&&

DPB

Local storm report, Oct 9, 2:53 PM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
253 PM EDT THU OCT 09 2008

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

0130 PM     TSTM WND DMG     BERRYVILLE              32.43N 81.26W
10/09/2008                   EFFINGHAM          GA   PUBLIC

            THUNDERSTORM WINDS BLEW SEVERAL TREES AND POWER LINES
            DOWN. UNION SPRINGS ROAD IS BLOCKED NEAR STILLWELL CLYO
            ROAD.

0130 PM     HAIL             2 NE SPRINGFIELD        32.39N 81.35W
10/09/2008  E0.75 INCH       EFFINGHAM          GA   PUBLIC

            PENNY SIZE HAIL REPORTED ON THE ROAD BETWEEN SPRINGFIELD
            AND BERRYVILLE. WINDS ESTIMATED TO AT LEAST 50 MPH.

&&

FWA

Local storm report, Oct 9, 3:43 PM EDT, 47 minutes before

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Local storm report, Oct 9, 3:48 PM EDT, 42 minutes before

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Local storm report, Oct 9, 4:27 PM EDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 9, 1:18 PM EDT	Severe Thunderstorm Warning	CHS	Hampton, Jasper	57 min
Oct 9, 2:07 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Jasper	38 min
Oct 9, 2:15 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Colleton, Hampton, Jasper	60 min
Oct 9, 2:58 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Charleston, Colleton, Dorchester	47 min
Oct 9, 3:16 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Dorchester, Hampton	44 min
Oct 9, 3:35 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Colleton, Dorchester	55 min
Oct 9, 4:14 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Dorchester	61 min
Oct 9, 4:50 PM EDT	Areal Flood Advisory	CHS	Charleston	25 min
Oct 9, 5:15 PM EDT	Areal Flood Advisory	CHS	Charleston	60 min
Oct 9, 6:52 PM EDT	Special Marine Warning	CHS		53 min
Oct 8, 9:35 PM EDT	Areal Flood Advisory	CHS	Bulloch, Jenkins, Screven	115 min
Oct 9, 10:32 AM EDT	Severe Thunderstorm Warning	CHS	Evans, Liberty, Long, Tattnall	43 min
Oct 9, 12:48 PM EDT	Severe Thunderstorm Warning	CHS	Liberty, Long	27 min
Oct 9, 1:14 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Effingham, Liberty	46 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2008 Every 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.