Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 34, NWS Charleston, SC

March 24, 2012Effingham County, Georgia; Jasper County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Mar 24, 2012, 12:17 PM EDT for Effingham County, Georgia; Jasper County, South Carolina. It was in force for 58 min. 2 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
Mar 24, 2012, 12:17 PM EDT (16:17 UTC)
Expired
Mar 24, 2012, 1:15 PM EDT
In force
58 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Effingham County, GA, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 38 km from the middle of the area, began a volume at 16:19 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
Mar 24, 12:35 PM EDTHAIL 14 Nnw Stillwell, GAEFFINGHAM COUNTY FIRE DEPARTMENT STATION REPORTED QUARTER SIZE HAIL. TIME WAS ESTIMATED FROM RADAR.
Mar 24, 1:18 PM EDTHAIL 0.884 Sw Gillisonville, SCPUBLIC REPORTED DIME TO NICKEL SIZE HAIL ALONG HIGHWAY 652.

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
Mar 24, 10:45 AM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 4.3 hours before the alert went out and 138 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 2012-03-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 588 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 12:00Z on 2012-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
588 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

197 
WUUS52 KCHS 241617
SVRCHS
GAC103-SCC053-241715-
/O.NEW.KCHS.SV.W.0034.120324T1617Z-120324T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
1217 PM EDT SAT MAR 24 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN EFFINGHAM COUNTY IN SOUTHEAST GEORGIA...
  NORTHERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 115 PM EDT

* AT 1217 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR SHAWNEE...MOVING NORTHEAST AT 25 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...
  HAIL UP TO QUARTER SIZE...
  TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  SHAWNEE...EGYPT...SPRINGFIELD...STILLWELL...CLYO...EBENEZER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3250 8154 3259 8138 3256 8134 3256 8129
      3255 8129 3273 8105 3246 8087 3229 8145
      3233 8146 3239 8154 3241 8153 3242 8155
      3246 8153 3249 8155
TIME...MOT...LOC 1617Z 247DEG 20KT 3245 8137

$$
2 follow-up statements
563 
WWUS52 KCHS 241629
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1229 PM EDT SAT MAR 24 2012

GAC103-SCC053-241715-
/O.CON.KCHS.SV.W.0034.000000T0000Z-120324T1715Z/
EFFINGHAM GA-JASPER SC-
1229 PM EDT SAT MAR 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHERN JASPER AND NORTHERN EFFINGHAM COUNTIES...

AT 1229 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM NEAR CLYO...MOVING NORTHEAST AT 25
MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO THE SIZE OF HALF DOLLARS...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CLYO...
EBENEZER...EGYPT...GUYTON...KILDARE...SHAWNEE...SPRINGFIELD...
STILLWELL...GILLISONVILLE...GRAHAMVILLE...GRAYS...OLD HOUSE...
PINELAND...RIDGELAND...ROBERTVILLE...SWITZERLAND...TARBORO AND
TILLMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3250 8154 3259 8138 3256 8134 3256 8129
      3255 8129 3273 8105 3246 8087 3229 8145
      3233 8146 3239 8154 3241 8153 3242 8155
      3246 8153 3249 8155
TIME...MOT...LOC 1629Z 247DEG 20KT 3248 8130

$$
617 
WWUS52 KCHS 241647
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
1247 PM EDT SAT MAR 24 2012

GAC103-SCC053-241715-
/O.CON.KCHS.SV.W.0034.000000T0000Z-120324T1715Z/
EFFINGHAM GA-JASPER SC-
1247 PM EDT SAT MAR 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHERN JASPER AND NORTHERN EFFINGHAM COUNTIES...

AT 1247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM NEAR TARBORO...MOVING NORTHEAST AT 25
MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...
HAIL UP TO QUARTER SIZE...
TORRENTIAL RAIN WHICH MAY PRODUCE LOCALIZED FLOODING...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...CLYO...
EBENEZER...EGYPT...GUYTON...KILDARE...SHAWNEE...SPRINGFIELD...
STILLWELL...GILLISONVILLE...GRAHAMVILLE...GRAYS...OLD HOUSE...
PINELAND...RIDGELAND...ROBERTVILLE...SWITZERLAND...TARBORO AND
TILLMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER SUCH AS HAIL...DOWNED TREES...LIMBS...AND
POWER LINES...PLEASE CONTACT THE CHARLESTON NATIONAL WEATHER SERVICE
TOLL FREE AT 1-888-383-2024 OR EMAIL YOUR REPORTS TO
CHS.SKYWARN@NOAA.GOV.

&&

LAT...LON 3250 8154 3259 8138 3256 8134 3256 8129
      3255 8129 3273 8105 3246 8087 3229 8145
      3233 8146 3239 8154 3241 8153 3242 8155
      3246 8153 3249 8155
TIME...MOT...LOC 1647Z 247DEG 22KT 3254 8115

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 8:00 PM EDTSpecial Weather StatementCHSLiberty, Long, Tattnall30 min
Mar 24, 12:12 PM EDTSpecial Weather StatementCHSBulloch, Candler, Evans33 min
Mar 24, 12:23 PM EDTSevere Thunderstorm WarningCHSEvans, Tattnall53 min
Mar 24, 12:44 PM EDTSpecial Weather StatementCHSScreven31 min
Mar 24, 2:26 PM EDTSpecial Marine WarningCHS94 min
Mar 24, 3:57 PM EDTSpecial Marine WarningCHS42 min
Mar 24, 4:35 PM EDTSpecial Weather StatementCHSChatham25 min
Mar 24, 5:01 PM EDTSpecial Weather StatementCHSLiberty29 min
Mar 24, 5:11 PM EDTSpecial Marine WarningCHS23 min
Mar 24, 7:16 PM EDTSpecial Weather StatementCHSBryan29 min
Mar 24, 9:19 AM EDTSpecial Weather StatementCHSBerkeley26 min
Mar 24, 1:13 PM EDTSevere Thunderstorm WarningCHSBeaufort, Colleton, Jasper62 min
Mar 24, 1:27 PM EDTSpecial Weather StatementCHSHampton33 min
Mar 24, 1:59 PM EDTSpecial Weather StatementCHSBeaufort46 min
Mar 24, 2:06 PM EDTSpecial Weather StatementCHSColleton39 min
Mar 24, 2:13 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Dorchester, Jasper62 min
Mar 24, 2:36 PM EDTTornado WarningCHSCharleston, Colleton, Dorchester23 min
Mar 24, 2:44 PM EDTSpecial Weather StatementCHSBerkeley61 min
Mar 24, 3:15 PM EDTSpecial Weather StatementCHSCharleston60 min
Mar 24, 3:44 PM EDTSpecial Weather StatementCHSBerkeley46 min
Mar 24, 4:24 PM EDTSpecial Weather StatementCHSGeorgetown21 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.