Alert archive / South Carolina / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 232, NWS Columbia, SC

August 6, 2008Calhoun County, Richland County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Aug 6, 2008, 9:35 PM EDT for Calhoun County, Richland County, South Carolina. It was in force for 40 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
Aug 6, 2008, 9:35 PM EDT (01:35 UTC)
Expired
Aug 6, 2008, 10:15 PM EDT
In force
40 min
Issued by
NWS Columbia, SC
Area
Storm-based polygon

Counties Calhoun County, SC, Richland County, SC

The radar

The Columbia radar (KCAE), 28 km from the middle of the area, began a volume at 01:35 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 1.6 hours before the alert went out and 131 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 00:00Z on 2008-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3702 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 00:00Z on 2008-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
3702 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1572 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
148 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 Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 7:35 PM EDT, 2 hours earlier.

Area forecast discussion, Aug 6, 7:35 PM EDT, 2 hours before
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Hazardous weather outlook, Aug 6, 4:30 PM EDT, 5 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
430 PM EDT WED AUG 6 2008

GAZ040-SCZ015-016-018-020>022-025>028-072030-
LINCOLN-LANCASTER-CHESTERFIELD-MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-
EDGEFIELD-SALUDA-LEXINGTON-RICHLAND-
430 PM EDT WED AUG 6 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND
CENTRAL SOUTH CAROLINA.

.DAY ONE...TONIGHT

AIRMASS MODERATELY TO STRONGLY UNSTABLE THIS AFTERNOON. AN
ISOLATED SEVERE THUNDERSTORM OR TWO IS POSSIBLE WITH DAMAGING
WINDS BEING THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE AREA IS OUTLOOKED FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS ON
THURSDAY AS A COLD FRONT MOVES INTO THE REGION. THE THREAT OF
THUNDERSTORMS WILL DIMINISH BY THE WEEKEND AND INTO NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

GAZ063>065-SCZ029-030-072030-
MCDUFFIE-COLUMBIA-RICHMOND-LEE-AIKEN-
430 PM EDT WED AUG 6 2008

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND
CENTRAL SOUTH CAROLINA.

.DAY ONE...TONIGHT

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

   HEAT ADVISORY.

ALSO...AIRMASS MODERATELY TO STRONGLY UNSTABLE THIS AFTERNOON. AN
ISOLATED SEVERE THUNDERSTORM OR TWO IS POSSIBLE WITH DAMAGING
WINDS BEING THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE AREA IS OUTLOOKED FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS ON
THURSDAY AS A COLD FRONT MOVES INTO THE REGION. THE THREAT OF
THUNDERSTORMS WILL DIMINISH BY THE WEEKEND AND INTO NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

GAZ077-SCZ031-035>038-041-072030-
BURKE-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-BAMBERG-
430 PM EDT WED AUG 6 2008

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM EDT THURSDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL GEORGIA AND
CENTRAL SOUTH CAROLINA.

.DAY ONE...TONIGHT

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

   HEAT ADVISORY.

ALSO...AIRMASS MODERATELY TO STRONGLY UNSTABLE THIS AFTERNOON. AN
ISOLATED SEVERE THUNDERSTORM OR TWO IS POSSIBLE WITH DAMAGING
WINDS BEING THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

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

   HEAT ADVISORY.

THE AREA IS OUTLOOKED FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS ON
THURSDAY AS A COLD FRONT MOVES INTO THE REGION. THE THREAT OF
THUNDERSTORMS WILL DIMINISH BY THE WEEKEND AND INTO NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 6, 4:04 PM EDT, 5 hours 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA SC
404 PM EDT WED AUG 6 2008

SCZ027-062030-
LEXINGTON-
404 PM EDT WED AUG 6 2008

...A STRONG THUNDERSTORM WAS AFFECTING LEXINGTON COUNTY...

AT 358 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 13 MILES SOUTHWEST OF RED BANK...MOVING SOUTH AT
6 MPH.

PEA SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

REPORT LARGE HAIL...DAMAGING WINDS OR FLOODING TO YOUR COUNTY
SHERIFF...OR CALL THE NATIONAL WEATHER SERVICE IN COLUMBIA TOLL FREE
AT 1 800 7 7 5 7 1 9 9.

BC
Special weather statement, Aug 6, 7:39 PM EDT, 1 hour 56 minutes before
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Special weather statement, Aug 6, 8:23 PM EDT, 1 hour 12 minutes before
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Local storm report, Aug 6, 9:05 PM EDT, 30 minutes before
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Local storm report, Aug 6, 9:28 PM EDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:18 PM EDTSevere Thunderstorm WarningCAELexington, Newberry42 min
Aug 6, 8:56 PM EDTSevere Thunderstorm WarningCAECalhoun, Lexington34 min
Aug 7, 2:23 PM EDTSevere Thunderstorm WarningCAEChesterfield52 min
Aug 7, 2:51 PM EDTSevere Thunderstorm WarningCAELancaster24 min
Aug 7, 2:57 PM EDTSevere Thunderstorm WarningCAEFairfield33 min
Aug 7, 4:01 PM EDTSevere Thunderstorm WarningCAEFairfield, Kershaw44 min
Aug 7, 4:29 PM EDTSevere Thunderstorm WarningCAEKershaw46 min
Aug 7, 4:48 PM EDTSevere Thunderstorm WarningCAEKershaw, Lee, Sumter57 min
Aug 7, 5:14 PM EDTSevere Thunderstorm WarningCAERichland46 min
Aug 7, 5:49 PM EDTSevere Thunderstorm WarningCAEOrangeburg30 min
Aug 7, 5:58 PM EDTSevere Thunderstorm WarningCAESumter62 min
Aug 7, 6:29 PM EDTSevere Thunderstorm WarningCAEClarendon61 min
Aug 7, 6:56 PM EDTSevere Thunderstorm WarningCAEAiken38 min
Aug 7, 7:24 PM EDTFlash Flood WarningCAERichland52 min
Aug 7, 5:40 PM EDTSevere Thunderstorm WarningCAEBurke, Richmond50 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.