Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 93, NWS Charleston, SC

June 4, 2012Liberty County, Long County, Tattnall County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Jun 4, 2012, 1:50 PM EDT for Liberty County, Long County, Tattnall County, Georgia. It was in force for 40 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
Jun 4, 2012, 1:50 PM EDT (17:50 UTC)
Expired
Jun 4, 2012, 2:30 PM EDT
In force
40 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Liberty County, GA, Long County, GA, Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 128 km from the middle of the area, began a volume at 17:53 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 4, 2:12 PM EDTTSTM WND DMG4 Sse Donald, GAA EMERGENCY MANAGER REPORTED ONE TREE DOWN ALONG HIGHWAY 301 NEAR JONES CREEK GEORGIA.
Jun 4, 2:20 PM EDTTSTM WND DMG3 Ne Ludowici, GAA EMERGENCY MANAGER REPORTED ONE TREE DOWN NEAR THE INTERSECTION OF HIGHWAY 84 AND DOYLE DURRENCE LANE.
Jun 4, 2:21 PM EDTTSTM WND DMG1 N Ludowici, GAA EMERGENCY MANAGER REPORTED A TREE DOWN ALONG PRESLEY ROAD.

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
Jun 4, 1:09 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.8 hours before the alert went out and 141 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, Jacksonville, FL at 12:00Z on 2012-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jacksonville, FL at 12:00Z on 2012-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1842 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

060 
WUUS52 KCHS 041750
SVRCHS
GAC179-183-267-041830-
/O.NEW.KCHS.SV.W.0093.120604T1750Z-120604T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
150 PM EDT MON JUN 4 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LIBERTY COUNTY IN SOUTHEAST GEORGIA...
  CENTRAL LONG COUNTY IN SOUTHEAST GEORGIA...
  SOUTH CENTRAL TATTNALL COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 230 PM EDT

* AT 150 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM...7 MILES WEST OF DONALD...MOVING SOUTHEAST AT
  50 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...
  DONALD...LUDOWICI...WALTHOURVILLE...ALLENHURST...

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 3193 8203 3177 8151 3163 8179 3165 8180
      3165 8183 3167 8186 3171 8188 3173 8191
      3175 8192 3178 8196 3178 8198 3181 8202
      3183 8206
TIME...MOT...LOC 1750Z 298DEG 45KT 3181 8190

$$
1 follow-up statement
863 
WWUS52 KCHS 041827
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
227 PM EDT MON JUN 4 2012

GAC179-183-267-041837-
/O.EXP.KCHS.SV.W.0093.000000T0000Z-120604T1830Z/
TATTNALL GA-LIBERTY GA-LONG GA-
227 PM EDT MON JUN 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LONG...CENTRAL LIBERTY
AND SOUTH CENTRAL TATTNALL COUNTIES WILL EXPIRE AT 230 PM EDT...

AT 227 PM EDT...RADAR INDICATED THAT THE THUNDERSTORM WHICH PROMPTED
THE WARNING HAD WEAKENED...THUS THE SEVERE THUNDERSTORM WARNING HAS
BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT MONDAY
EVENING FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

LAT...LON 3193 8203 3177 8151 3163 8179 3165 8180
      3165 8183 3167 8186 3171 8188 3173 8191
      3175 8192 3178 8196 3178 8198 3181 8202
      3183 8206
TIME...MOT...LOC 1827Z 298DEG 45KT 3159 8142

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 6:47 AM EDTSpecial Marine WarningCHS118 min
Jun 4, 12:47 PM EDTSpecial Weather StatementCHSBulloch, Candler, Evans28 min
Jun 4, 12:52 PM EDTSpecial Marine WarningCHS67 min
Jun 4, 12:54 PM EDTSpecial Weather StatementCHSLong51 min
Jun 4, 12:58 PM EDTSevere Thunderstorm WarningCHSBryan, Liberty, Long, Tattnall62 min
Jun 4, 1:23 PM EDTTornado WarningCHSBryan, Liberty, Long37 min
Jun 4, 1:28 PM EDTSpecial Weather StatementCHSChatham17 min
Jun 4, 1:34 PM EDTSpecial Marine WarningCHS86 min
Jun 4, 1:42 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Effingham, Liberty48 min
Jun 4, 1:44 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, Long, McIntosh46 min
Jun 4, 2:04 PM EDTSpecial Marine WarningCHS116 min
Jun 4, 2:22 PM EDTSevere Thunderstorm WarningCHSBryan, Liberty, Long, McIntosh53 min
Jun 4, 2:30 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, McIntosh60 min
Jun 4, 3:56 PM EDTCoastal Flood AdvisoryCHS7 hr
Jun 4, 5:08 PM EDTSpecial Weather StatementCHSLong37 min

Nearby

Severe 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.