Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 6, NWS Charleston, SC

February 24, 20127 counties in Georgia; Allendale County, Hampton County, Jasper County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Feb 24, 2012, 3:33 PM EST for 7 counties in Georgia; Allendale County, Hampton County, Jasper County, South Carolina. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 24, 2012, 3:33 PM EST (20:33 UTC)
Expired
Feb 24, 2012, 4:30 PM EST
In force
57 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

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

The radar

The Charleston,SC radar (KCLX), 72 km from the middle of the area, began a volume at 20:33 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.

IssuedProductOfficeLasted
Feb 24, 12:04 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.6 hours before the alert went out and 170 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.

183 
WUUS52 KCHS 242033
SVRCHS
GAC031-043-103-109-165-251-267-SCC005-049-053-242130-
/O.NEW.KCHS.SV.W.0006.120224T2033Z-120224T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
333 PM EST FRI FEB 24 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BULLOCH COUNTY IN SOUTHEAST GEORGIA...
  CANDLER COUNTY IN SOUTHEAST GEORGIA...
  NORTHWESTERN EFFINGHAM COUNTY IN SOUTHEAST GEORGIA...
  NORTHERN EVANS COUNTY IN SOUTHEAST GEORGIA...
  JENKINS COUNTY IN SOUTHEAST GEORGIA...
  SCREVEN COUNTY IN SOUTHEAST GEORGIA...
  NORTHWESTERN TATTNALL COUNTY IN SOUTHEAST GEORGIA...
  ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...
  WESTERN HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA...
  EXTREME NORTHWESTERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 430 PM EST

* AT 332 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  SEVERE THUNDERSTORMS...ALONG A LINE EXTENDING FROM 6 MILES
  NORTHEAST OF HERNDON TO 21 MILES SOUTHWEST OF HERNDON TO 29 MILES
  WEST OF ALINE TO 38 MILES WEST OF ALINE TO 56 MILES WEST OF
  COBBTOWN...MOVING EAST AT 55 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...
  HAIL UP TO QUARTER SIZE...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  HERNDON...PERKINS...MILLEN...EMMALANE...MARTIN...MILLETT...
  HILLTONIA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. IF YOU SEE
OR HEAR A TORNADO...MOVE QUICKLY TO AN INTERIOR ROOM IN A STURDY
STRUCTURE.

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

&&

LAT...LON 3252 8216 3256 8209 3255 8203 3260 8201
      3266 8209 3285 8214 3293 8205 3296 8184
      3292 8175 3304 8156 3310 8162 3316 8154
      3311 8136 3312 8119 3298 8104 3266 8120
      3230 8144 3208 8220 3218 8219 3236 8225
TIME...MOT...LOC 2032Z 251DEG 82KT 3291 8200 3266 8233
          3252 8255 3233 8274 3212 8300

$$

BSH
2 follow-up statements
183 
WWUS52 KCHS 242103
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
403 PM EST FRI FEB 24 2012

GAC031-043-103-109-165-251-267-SCC005-049-053-242130-
/O.CON.KCHS.SV.W.0006.000000T0000Z-120224T2130Z/
TATTNALL GA-SCREVEN GA-JENKINS GA-EVANS GA-BULLOCH GA-CANDLER GA-
ALLENDALE SC-EFFINGHAM GA-HAMPTON SC-JASPER SC-
403 PM EST FRI FEB 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EST
FOR EXTREME NORTHWESTERN JASPER...WESTERN HAMPTON...NORTHWESTERN
EFFINGHAM...ALLENDALE...CANDLER...BULLOCH...NORTHERN EVANS...
JENKINS...SCREVEN AND NORTHWESTERN TATTNALL COUNTIES...

AT 401 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
BALDOCK TO 6 MILES WEST OF BASCOM TO EMMALANE TO 6 MILES NORTHWEST OF
OLIFFTOWN TO 16 MILES WEST OF ALINE...MOVING EAST AT 75 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ALINE...
ALTMAN...BELLVILLE...BROOKLET...BURTONS FERRY LANDING...BUTTS...
CAPTOLO...COBBTOWN...COLLINS...DENMARK...DOVER...EGYPT...EMMALANE...
GEORGIA SOUTHERN...HERNDON...HILLTONIA...HOPEULIKIT...HUNTERS...
KILDARE...LEEFIELD...MANASSAS...METTER...MIDDLEGROUND...MILLEN...
MILLHAVEN...NEVILS...NEWINGTON...OLIVER...PERKINS...PORTAL...
PULASKI...REGISTER...ROCKY FORD...SCARBORO...SHAWNEE...STATESBORO...
STILSON...SYLVANIA...WESTSIDE...WOODCLIFF...ALLENDALE...APPLETON...
BARTON...BRUNSON...CROCKETVILLE...ESTILL...FAIRFAX...FURMAN...
GARNETT...GIFFORD...HAMPTON...LAKE WARREN STATE PARK...LENA...
LURAY...MARTIN...MILLETT...SCOTIA...SEIGLING...SHIRLEY...SYCAMORE AND
ULMER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES SUDDENLY...SOMETIMES WITH LITTLE OR NO WARNING. IF YOU SEE
OR HEAR A TORNADO...MOVE QUICKLY TO AN INTERIOR ROOM IN A STURDY
STRUCTURE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST FRIDAY EVENING FOR
SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

&&

LAT...LON 3252 8216 3256 8209 3255 8203 3260 8201
      3266 8209 3285 8214 3293 8205 3296 8184
      3292 8175 3304 8156 3310 8162 3316 8154
      3311 8136 3312 8119 3298 8104 3266 8120
      3230 8144 3208 8220 3218 8219 3236 8225
TIME...MOT...LOC 2101Z 250DEG 66KT 3314 8137 3289 8171
          3275 8193 3256 8212 3235 8238

$$
986 
WWUS52 KCHS 242121
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
ISSUED BY NATIONAL WEATHER SERVICE WILMINGTON NC
421 PM EST FRI FEB 24 2012

GAC031-043-103-109-165-251-267-SCC005-049-053-242130-
/O.CON.KCHS.SV.W.0006.000000T0000Z-120224T2130Z/
TATTNALL GA-SCREVEN GA-JENKINS GA-EVANS GA-BULLOCH GA-CANDLER GA-
ALLENDALE SC-EFFINGHAM GA-HAMPTON SC-JASPER SC-
421 PM EST FRI FEB 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EST
FOR EXTREME NORTHWESTERN JASPER...WESTERN HAMPTON...NORTHWESTERN
EFFINGHAM...ALLENDALE...CANDLER...BULLOCH...NORTHERN EVANS...
JENKINS...SCREVEN AND NORTHWESTERN TATTNALL COUNTIES...

AT 415 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE 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 12 MILES NORTHEAST OF ULMER 
TO MILBURY TO BASCOM TO ROCKY FORD TO METTER...MOVING EAST AT 65 MPH.

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 3252 8216 3256 8209 3255 8203 3260 8201
      3266 8209 3296 8184 3292 8175 3304 8156
      3314 8147 3311 8136 3312 8119 3298 8104
      3266 8120 3230 8144 3208 8220 3218 8219
      3236 8225
TIME...MOT...LOC 2120Z 250DEG 66KT 3326 8098 3301 8132
          3287 8154 3268 8173 3247 8199

$$

TRA

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 3:39 AM ESTWind AdvisoryCHSBulloch, Candler, Effingham, Evans, Jenkins, Long and 2 more15 hr
Feb 24, 2:43 PM ESTSevere Thunderstorm WarningCHSBryan, Bulloch, Chatham, Effingham, Evans, Liberty and 2 more62 min
Feb 24, 3:24 PM ESTSevere Thunderstorm WarningCHSBryan, Chatham, Effingham66 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, 4:26 PM ESTSevere Thunderstorm WarningCHSBulloch, Candler, Effingham, Jenkins, Screven34 min
Feb 24, 4:48 PM ESTTornado WarningCHSBryan, Liberty, Long, McIntosh42 min
Feb 24, 4:57 PM ESTSevere Thunderstorm WarningCHSBulloch, Effingham, Screven63 min
Feb 24, 5:10 PM ESTSpecial Marine WarningCHS95 min
Feb 24, 6:44 PM ESTSpecial Marine WarningCHS46 min
Feb 24, 5:10 PM ESTTornado WarningCHSColleton, Dorchester29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.