Alert archive / South Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 86, NWS Charleston, SC

June 1, 2012Allendale County, Hampton County, South Carolina; Screven County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jun 1, 2012, 3:09 PM EDT for Allendale County, Hampton County, South Carolina; Screven County, Georgia. It was in force for 39 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
Jun 1, 2012, 3:09 PM EDT (19:09 UTC)
Expired
Jun 1, 2012, 3:48 PM EDT
In force
39 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Screven County, GA, Allendale County, SC, Hampton County, SC

The radar

The Charleston,SC radar (KCLX), 44 km from the middle of the area, began a volume at 19:11 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
Jun 1, 3:23 PM EDTTSTM WND DMG1 W Burtons Ferry Landi, GA1 TREE DOWN ALONG BURTONS FERRY HIGHWAY NEAR THE GEORGIA WELCOME CENTER. TIME ESTIMATED FROM RADAR.
Jun 1, 3:23 PM EDTTSTM WND DMGBurtons Ferry Landing, GASMALL OAK BRANCHES DOWN. WIND ESTIMATED AT 40 MPH.

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, 7.2 hours before the alert went out and 123 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 2012-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 415 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 2012-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.19395878Sfc1 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
415 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

578 
WUUS52 KCHS 011909
SVRCHS
GAC251-SCC005-049-012015-
/O.NEW.KCHS.SV.W.0086.120601T1909Z-120601T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
309 PM EDT FRI JUN 1 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN SCREVEN COUNTY IN SOUTHEAST GEORGIA...
  ALLENDALE COUNTY IN SOUTHEAST SOUTH CAROLINA...
  NORTHERN HAMPTON COUNTY IN SOUTHEAST SOUTH CAROLINA...

* UNTIL 415 PM EDT

* AT 309 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR HILLTONIA...MOVING EAST AT 30 MPH.

  PREPARE NOW FOR THE FOLLOWING HAZARDS...
  DAMAGING WINDS IN EXCESS OF 60 MPH...

* SOME LOCATIONS IN THE WARNING INCLUDE...
  HILLTONIA...MILLHAVEN...BURTONS FERRY LANDING...APPLETON...
  BARTON...ALLENDALE...FAIRFAX...GIFFORD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE SHELTER AS THUNDERSTORMS APPROACH.

REPORT HAIL...DOWNED TREES...LIMBS...AND POWER LINES DIRECTLY TO THE
CHARLESTON NATIONAL WEATHER SERVICE AT 1-888-383-2024...WHEN IT IS
SAFE TO DO SO.

&&

LAT...LON 3294 8173 3302 8160 3312 8133 3312 8119
      3306 8112 3305 8109 3296 8102 3291 8099
      3288 8096 3279 8170
TIME...MOT...LOC 1909Z 259DEG 25KT 3290 8162

$$

JAQ
2 follow-up statements
134 
WWUS52 KCHS 011938
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
338 PM EDT FRI JUN 1 2012

GAC251-011947-
/O.CAN.KCHS.SV.W.0086.000000T0000Z-120601T2015Z/
SCREVEN GA-
338 PM EDT FRI JUN 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SCREVEN COUNTY HAS
BEEN CANCELLED...

AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE STORM THAT PROMPTED THE WARNING HAD MOVED OUT OF SCREVEN 
COUNTY...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN 
CANCELLED. 

LAT...LON 3312 8134 3312 8119 3306 8112 3305 8109
      3302 8108 3296 8102 3288 8097 3289 8139
      3303 8149
TIME...MOT...LOC 1937Z 255DEG 26KT 3297 8137

$$

SCC005-049-012015-
/O.CON.KCHS.SV.W.0086.000000T0000Z-120601T2015Z/
ALLENDALE SC-HAMPTON SC-
338 PM EDT FRI JUN 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHERN HAMPTON AND ALLENDALE COUNTIES...

AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF ALLENDALE...
MOVING EAST AT 30 MPH.

PREPARE NOW FOR THE FOLLOWING HAZARDS...
DAMAGING WINDS IN EXCESS OF 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
ALLENDALE...APPLETON...BARTON...BRUNSON...CROCKETVILLE...FAIRFAX...
MILEY...SEIGLING...SYCAMORE AND ULMER.

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 3312 8134 3312 8119 3306 8112 3305 8109
      3302 8108 3296 8102 3288 8097 3289 8139
      3303 8149
TIME...MOT...LOC 1937Z 255DEG 26KT 3297 8137

$$

JAQ
835 
WWUS52 KCHS 011948
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
348 PM EDT FRI JUN 1 2012

SCC005-049-011958-
/O.CAN.KCHS.SV.W.0086.000000T0000Z-120601T2015Z/
ALLENDALE SC-HAMPTON SC-
348 PM EDT FRI JUN 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HAMPTON AND ALLENDALE
COUNTIES HAS BEEN CANCELLED...

AT 348 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM THAT PROMPTED
THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN CANCELED.

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 3312 8134 3312 8119 3306 8112 3305 8109
      3302 8108 3296 8102 3288 8097 3289 8139
      3303 8149
TIME...MOT...LOC 1948Z 255DEG 26KT 3299 8128

$$

JAQ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 3:59 AM EDTLake Wind AdvisoryCHSBerkeley12 hr
Jun 1, 2:59 PM EDTSpecial Weather StatementCHSAllendale31 min
Jun 1, 4:47 PM EDTSpecial Weather StatementCHSDorchester28 min
Jun 1, 4:59 PM EDTSevere Thunderstorm WarningCHSBerkeley, Colleton, Dorchester61 min
Jun 1, 5:17 PM EDTSpecial Weather StatementCHSColleton28 min
Jun 1, 5:24 PM EDTSevere Thunderstorm WarningCHSColleton, Hampton66 min
Jun 1, 5:30 PM EDTSpecial Weather StatementCHSBerkeley30 min
Jun 1, 5:51 PM EDTSpecial Weather StatementCHSJasper39 min
Jun 1, 6:00 PM EDTSpecial Weather StatementCHSBerkeley60 min
Jun 1, 6:04 PM EDTSpecial Weather StatementCHSDorchester26 min
Jun 1, 6:28 PM EDTSpecial Weather StatementCHSBeaufort, Jasper32 min
Jun 1, 6:58 PM EDTSpecial Weather StatementCHSBerkeley47 min
Jun 1, 7:01 PM EDTSpecial Weather StatementCHSCharleston44 min
Jun 1, 7:44 PM EDTSpecial Weather StatementCHSCharleston46 min
Jun 1, 2:45 AM EDTSpecial Marine WarningCHS30 min
Jun 1, 4:05 AM EDTSpecial Marine WarningCHS40 min
Jun 1, 2:24 PM EDTSpecial Weather StatementCHSJenkins, Screven36 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2012Severe Thunderstorm Warnings in Georgia, 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.