Alert archive / Georgia / Tornado Warnings in 2013

Tornado Warning 1, NWS Charleston, SC

February 26, 2013Chatham County, Georgia; Jasper County, South Carolina

NWS Charleston, SC issued this tornado warning at Feb 26, 2013, 6:16 AM EST for Chatham County, Georgia; Jasper County, South Carolina. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 26, 2013, 6:16 AM EST (11:16 UTC)
Expired
Feb 26, 2013, 7:00 AM EST
In force
44 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Chatham County, GA, Jasper County, SC

The radar

The Charleston,SC radar (KCLX), 63 km from the middle of the area, began a volume at 11:17 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.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 11.3 hours before the alert went out and 135 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 00:00Z on 2013-02-26Temperature 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, Charleston AFB, SC at 00:00Z on 2013-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.1939587897Sfc1 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
507 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
542 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.

936 
WFUS52 KCHS 261116
TORCHS
GAC051-SCC053-261200-
/O.NEW.KCHS.TO.W.0001.130226T1116Z-130226T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
616 AM EST TUE FEB 26 2013

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR PORTIONS OF...
  JASPER COUNTY IN SOUTHEAST SOUTH CAROLINA...
  CHATHAM COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 700 AM EST

* AT 616 AM EST...RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO...NEAR WINDSOR FOREST...MOVING NORTH AT 30 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  MONTGOMERY...WHITE BLUFF...WINDSOR FOREST...I-16/I-95
  INTERCHANGE...SANDFLY...SAVANNAH...THUNDERBOLT...GARDEN CITY...
  SAVANNAH HISTORIC DISTRICT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3190 8117 3189 8122 3193 8127 3198 8130
      3223 8118 3222 8114 3226 8115 3228 8112
      3223 8101 3220 8100 3217 8095 3215 8097
      3213 8096 3213 8091 3212 8093 3211 8090
      3186 8115
TIME...MOT...LOC 1116Z 201DEG 26KT 3198 8120

$$
1 follow-up statement
112 
WWUS52 KCHS 261142
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
642 AM EST TUE FEB 26 2013

GAC051-SCC053-261152-
/O.CAN.KCHS.TO.W.0001.000000T0000Z-130226T1200Z/
JASPER SC-CHATHAM GA-
642 AM EST TUE FEB 26 2013

...THE TORNADO WARNING FOR PORTIONS OF JASPER AND CHATHAM COUNTIES
HAS BEEN CANCELLED...

AT 642 AM EST...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH
PROMPTED THE TORNADO WARNING HAD MOVED OUT OF THE WARNED AREA...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 3190 8117 3189 8122 3193 8127 3198 8130
      3223 8118 3222 8114 3226 8115 3228 8112
      3223 8101 3220 8100 3217 8095 3215 8097
      3213 8096 3213 8091 3212 8093 3211 8090
      3186 8115
TIME...MOT...LOC 1142Z 201DEG 26KT 3216 8112

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 26, 7:10 AM ESTAreal Flood AdvisoryCHSBryan, Chatham, Effingham110 min
Feb 26, 3:26 AM ESTWind AdvisoryCHSBerkeley, Dorchester16 hr
Feb 26, 7:41 AM ESTTornado WarningCHSBeaufort, Charleston, Colleton49 min
Feb 26, 8:10 AM ESTAreal Flood AdvisoryCHSBerkeley, Charleston, Colleton, Dorchester110 min
Feb 26, 9:37 AM ESTFlash Flood WarningCHSBerkeley, Charleston, Dorchester3 hr

Nearby

Tornado Warnings in Georgia, 2013Tornado Warnings in South Carolina, 2013Every tornado warning in 2013Tornadoes in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.