Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Charleston, SC

February 24, 20124 counties in South Carolina; 5 counties in Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Feb 24, 2012, 4:26 PM EST for 4 counties in South Carolina; 5 counties in Georgia. It was in force for 34 min. 3 reports 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
Feb 24, 2012, 4:26 PM EST (21:26 UTC)
Expired
Feb 24, 2012, 5:00 PM EST
In force
34 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Bulloch County, GA, Candler County, GA, Effingham County, GA, Jenkins County, GA, Screven County, GA, Allendale County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 37 km from the middle of the area, began a volume at 21:28 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
Feb 24, 4:53 PM ESTTSTM WND DMG2 Nnw Shirley, SCTREES DOWN ALONG AUGUSTA STAGE COACH ROAD.
Feb 24, 5:06 PM ESTTSTM WND DMGGarnett, SCTREES DOWN ALONG HOPEWELL ROAD.
Feb 24, 5:06 PM ESTTORNADO1 S Islandton, SCPOSSIBLE TORNADO. 3 HOUSES DAMAGED. 1 DESTROYED. NO INJURIES. 582 JAMISON ROAD NEAR ISLANDTON. TIME ESTIMATED BASED ON RADAR.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 24, 12:04 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 9.4 hours before the alert went out and 108 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 2012-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 817 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2012-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 350 square meters per square second.1939587897Sfc1 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
817 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
350 m²/s²
0-3 km storm-relative helicity
365 m²/s²
Significant tornado parameter
0.0
Supercell composite
9.4

Open this sounding in Storm Lab

The text

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

676 
WUUS52 KCHS 242126
SVRCHS
GAC031-043-103-165-251-SCC005-029-049-053-242200-
/O.NEW.KCHS.SV.W.0008.120224T2126Z-120224T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
ISSUED BY NATIONAL WEATHER SERVICE WILMINGTON NC
426 PM EST FRI FEB 24 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA
  NORTHWESTERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA
  HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA
  NORTHWESTERN EFFINGHAM COUNTY IN SOUTHEAST GEORGIA
  ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA
  CANDLER COUNTY IN SOUTHEAST GEORGIA
  BULLOCH COUNTY IN SOUTHEAST GEORGIA
  SOUTHEASTERN JENKINS COUNTY IN SOUTHEAST GEORGIA
  SCREVEN COUNTY IN SOUTHEAST GEORGIA

* UNTIL 500 PM EST

* AT 424 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM ULMER TO ALINE...AND MOVING
  EAST AT 65 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
   BRUNSON...
   LODGE...
   SMOAKS...
   WILLIAMS...
   RUFFIN...
   GARNETT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS.

&&

PLEASE REPORT HAIL...DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL
WEATHER SERVICE IN CHARLESTON...TOLL FREE AT 877-633-6772...WHEN YOU
CAN DO SO SAFELY.

LAT...LON 3312 8130 3313 8120 3303 8108 3310 8095
      3307 8090 3309 8088 3313 8090 3314 8087
      3311 8067 3230 8153 3233 8224
TIME...MOT...LOC 2126Z 262DEG 55KT 3307 8114 3236 8210

$$

TRA

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 3:39 AM ESTWind AdvisoryCHSAllendale, Berkeley, Colleton, Dorchester, Hampton15 hr
Feb 24, 3:24 PM ESTSevere Thunderstorm WarningCHSBeaufort, Colleton, Jasper66 min
Feb 24, 3:33 PM ESTSevere Thunderstorm WarningCHSAllendale, Hampton, Jasper57 min
Feb 24, 4:57 PM ESTSevere Thunderstorm WarningCHSBeaufort, Berkeley, Charleston, Colleton, Dorchester, Hampton and 1 more63 min
Feb 24, 5:10 PM ESTTornado WarningCHSColleton, Dorchester29 min
Feb 24, 2:43 PM ESTSevere Thunderstorm WarningCHSBryan, Bulloch, Chatham, Effingham, Evans, Liberty and 2 more62 min
Feb 24, 3:41 PM ESTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, Long, McIntosh, Tattnall41 min
Feb 24, 4:17 PM ESTSpecial Marine WarningCHS58 min
Feb 24, 4:48 PM ESTTornado WarningCHSBryan, Liberty, Long, McIntosh42 min
Feb 24, 5:10 PM ESTSpecial Marine WarningCHS95 min
Feb 24, 6:44 PM ESTSpecial Marine WarningCHS46 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Severe Thunderstorm Warnings in South Carolina, 2012Every severe thunderstorm warning in 2012

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.