Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 65, NWS Charleston, SC

May 15, 2012Bryan County, Chatham County, Liberty County, Georgia

NWS Charleston, SC issued this severe thunderstorm warning at May 15, 2012, 4:19 PM EDT for Bryan County, Chatham County, Liberty County, Georgia. It was in force for 56 min. 5 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
May 15, 2012, 4:19 PM EDT (20:19 UTC)
Expired
May 15, 2012, 5:15 PM EDT
In force
56 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Bryan County, GA, Chatham County, GA, Liberty County, GA

The radar

The Charleston,SC radar (KCLX), 73 km from the middle of the area, began a volume at 20:22 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
May 15, 4:23 PM EDTHAIL 13 N Keller, GATRAINED SPOTTER REPORTED QUARTER SIZE HAIL IN KELLER.
May 15, 4:47 PM EDTHAIL 13 Nne Burroughs, GATRAINED SPOTTER REPORTED QUARTER SIZE HAIL AT BERWICK PLANTATION.
May 15, 4:52 PM EDTHAIL 1Garden City, GAQUARTER SIZE HAIL COVERING THE GROUND.
May 15, 4:52 PM EDTHAIL 1.753 E Garden City, GAGOLFBALL SIZE HAIL FELL ON FOUNDATION DRIVE.
May 15, 4:55 PM EDTHAIL 1.751 E Garden City, GA

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
May 15, 2:27 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.3 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, Charleston AFB, SC at 12:00Z on 2012-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1682 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 2012-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
1682 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

096 
WUUS52 KCHS 152019
SVRCHS
GAC029-051-179-152115-
/O.NEW.KCHS.SV.W.0065.120515T2019Z-120515T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
419 PM EDT TUE MAY 15 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BRYAN COUNTY IN SOUTHEAST GEORGIA...
  CHATHAM COUNTY IN SOUTHEAST GEORGIA...
  EAST CENTRAL LIBERTY COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 515 PM EDT

* AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...NEAR KELLER...MOVING NORTHEAST AT 20 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...
  KELLER...BELFAST...RICHMOND HILL...FORT MCALLISTER...OSSABAW
  SOUND...MONTGOMERY...VERNONBURG...

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 3186 8138 3218 8111 3214 8112 3211 8111
      3209 8106 3210 8100 3204 8092 3203 8084
      3202 8083 3197 8085 3194 8091 3187 8097
      3173 8123
TIME...MOT...LOC 2020Z 226DEG 18KT 3185 8125

$$

JAQ
2 follow-up statements
579 
WWUS52 KCHS 152040
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
440 PM EDT TUE MAY 15 2012

GAC179-152049-
/O.CAN.KCHS.SV.W.0065.000000T0000Z-120515T2115Z/
LIBERTY GA-
440 PM EDT TUE MAY 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LIBERTY COUNTY
HAS BEEN CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
TUESDAY EVENING FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

LAT...LON 3190 8120 3194 8128 3190 8135 3215 8113
      3212 8112 3209 8107 3209 8103 3210 8100
      3204 8092 3203 8084 3202 8083 3197 8085
      3194 8091 3187 8097
TIME...MOT...LOC 2039Z 218DEG 19KT 3196 8120

$$

GAC029-051-152115-
/O.CON.KCHS.SV.W.0065.000000T0000Z-120515T2115Z/
BRYAN GA-CHATHAM GA-
440 PM EDT TUE MAY 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR CENTRAL CHATHAM AND EAST CENTRAL BRYAN COUNTIES...

AT 439 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM NEAR WINDWARD...MOVING NORTHEAST AT 20
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...FORT
PULASKI...GARDEN CITY...HUTCHINSON ISLAND...MONTGOMERY...
RICHMOND HILL...SAVANNAH...SKIDAWAY ISLAND...THUNDERBOLT...TYBEE ISLAND...
WASSAW ISLAND...WHITE BLUFF...WHITEMARSH ISLAND AND WINDSOR FOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AND/OR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

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 3190 8120 3194 8128 3190 8135 3215 8113
      3212 8112 3209 8107 3209 8103 3210 8100
      3204 8092 3203 8084 3202 8083 3197 8085
      3194 8091 3187 8097
TIME...MOT...LOC 2039Z 218DEG 19KT 3196 8120

$$
345 
WWUS52 KCHS 152113
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
513 PM EDT TUE MAY 15 2012

GAC029-051-152123-
/O.EXP.KCHS.SV.W.0065.000000T0000Z-120515T2115Z/
BRYAN GA-CHATHAM GA-
513 PM EDT TUE MAY 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CHATHAM AND EAST
CENTRAL BRYAN COUNTIES WILL EXPIRE AT 515 PM EDT...

AT 513 PM EDT...RADAR INDICATED THAT THE SEVERE THUNDERSTORM WHICH
PROMPTED THE WARNING HAD MOVED OUT OF THE WARNED AREA...THUS THE
SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE.

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 900 PM EDT
TUESDAY EVENING FOR SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.

LAT...LON 3190 8120 3194 8128 3190 8135 3215 8113
      3212 8112 3209 8107 3209 8103 3210 8100
      3204 8092 3203 8084 3202 8083 3197 8085
      3194 8091 3187 8097
TIME...MOT...LOC 2113Z 218DEG 19KT 3210 8107

$$

JAQ

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 8:31 PM EDTSpecial Weather StatementCHSCandler29 min
May 14, 10:16 PM EDTSpecial Weather StatementCHSTattnall29 min
May 15, 3:25 AM EDTSpecial Marine WarningCHS95 min
May 15, 3:17 PM EDTSpecial Weather StatementCHSMcIntosh28 min
May 15, 3:28 PM EDTSevere Thunderstorm WarningCHSBryan, Liberty, Long, McIntosh62 min
May 15, 3:54 PM EDTSevere Thunderstorm WarningCHSScreven20 min
May 15, 4:42 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Effingham, Liberty63 min
May 15, 5:28 PM EDTSpecial Weather StatementCHSMcIntosh32 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.