Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 36, NWS Charleston, SC

March 24, 2012Beaufort County, Colleton County, Jasper County, South Carolina

NWS Charleston, SC issued this severe thunderstorm warning at Mar 24, 2012, 1:13 PM EDT for Beaufort County, Colleton County, Jasper County, South Carolina. It was in force for 62 min. 4 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, 1:13 PM EDT (17:13 UTC)
Expired
Mar 24, 2012, 2:15 PM EDT
In force
62 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Beaufort County, SC, Colleton County, SC, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 14 km from the middle of the area, began a volume at 17:14 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, 1:18 PM EDTHAIL 0.884 Sw Gillisonville, SCPUBLIC REPORTED DIME TO NICKEL SIZE HAIL ALONG HIGHWAY 652.
Mar 24, 1:44 PM EDTTSTM WND DMG4 Ssw Gillisonville, SC911 CALL CENTER REPORTED SEVERAL TREES DOWN ON GRAYS HIGHWAY OUTSIDE OF RIDGELAND. TIME ESTIMATED BY RADAR.
Mar 24, 1:57 PM EDTTSTM WND DMG1 Sw Grahamville, SCONE TREE DOWN ON INTERSTATE 95. TIME ESTIMATED BY RADAR.
Mar 24, 2:22 PM EDTHAIL 0.881 N White Hall, SC

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

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 5.2 hours before the alert went out and 89 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°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.

045 
WUUS52 KCHS 241713
SVRCHS
SCC013-029-053-241815-
/O.NEW.KCHS.SV.W.0036.120324T1713Z-120324T1815Z/

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

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL BEAUFORT COUNTY IN SOUTHEAST SOUTH CAROLINA...
  SOUTH CENTRAL COLLETON COUNTY IN SOUTHEAST SOUTH CAROLINA...
  NORTHERN JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 215 PM EDT

* AT 114 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 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...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  RIDGELAND...TARBORO...GRAHAMVILLE...GILLISONVILLE...OLD HOUSE...
  COOSAWHATCHIE...POCOTALIGO...

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 3267 8095 3265 8096 3262 8090 3269 8085
      3270 8083 3271 8083 3277 8069 3257 8057
      3236 8114 3256 8123
TIME...MOT...LOC 1714Z 244DEG 21KT 3255 8105

$$
2 follow-up statements
117 
WWUS52 KCHS 241735
SVSCHS

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

SCC013-029-053-241815-
/O.CON.KCHS.SV.W.0036.000000T0000Z-120324T1815Z/
JASPER SC-COLLETON SC-BEAUFORT SC-
135 PM EDT SAT MAR 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR NORTH CENTRAL BEAUFORT...SOUTH CENTRAL COLLETON AND NORTHERN
JASPER COUNTIES...

AT 135 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
GILLISONVILLE TO TILLMAN...MOVING NORTHEAST AT 25 MPH.

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

THERE HAVE BEEN REPORTS OF DIME TO NICKEL SIZED HAIL WITH THESE 
STORMS. 

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
COOSAWHATCHIE...DALE...GARDENS CORNER...GILLISONVILLE...
GRAHAMVILLE...OLD HOUSE...POCOTALIGO...RIDGELAND...SHELDON...
SWITZERLAND...TARBORO...TILLMAN AND WHITE HALL.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
SATURDAY EVENING FOR SOUTHEAST GEORGIA.

&&

LAT...LON 3267 8095 3265 8096 3262 8090 3269 8085
      3270 8083 3271 8083 3277 8069 3257 8057
      3236 8114 3256 8123
TIME...MOT...LOC 1735Z 244DEG 21KT 3263 8094 3244 8111

$$
773 
WWUS52 KCHS 241756
SVSCHS

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

SCC013-029-053-241815-
/O.CON.KCHS.SV.W.0036.000000T0000Z-120324T1815Z/
JASPER SC-COLLETON SC-BEAUFORT SC-
156 PM EDT SAT MAR 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR NORTH CENTRAL BEAUFORT...SOUTH CENTRAL COLLETON AND NORTHERN
JASPER COUNTIES...

AT 156 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM
SALKEHATCHIE TO RIDGELAND...MOVING NORTHEAST AT 25 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...
COOSAWHATCHIE...DALE...GARDENS CORNER...GILLISONVILLE...
GRAHAMVILLE...OLD HOUSE...POCOTALIGO...RIDGELAND...SHELDON...
SWITZERLAND...TILLMAN AND WHITE HALL.

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 3265 8098 3262 8090 3269 8085 3270 8083
      3271 8083 3277 8069 3257 8057 3236 8114
      3258 8115
TIME...MOT...LOC 1756Z 244DEG 21KT 3268 8081 3249 8098

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 24, 9:19 AM EDTSpecial Weather StatementCHSBerkeley26 min
Mar 24, 12:17 PM EDTSevere Thunderstorm WarningCHSJasper58 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 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.