Alert archive / Georgia / Tornado Warnings in 2009

Tornado Warning 7, NWS Charleston, SC

April 13, 2009Tattnall County, Georgia

NWS Charleston, SC issued this tornado warning at Apr 13, 2009, 2:40 PM EDT for Tattnall County, Georgia. It was in force for 22 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
Apr 13, 2009, 2:40 PM EDT (18:40 UTC)
Expired
Apr 13, 2009, 3:02 PM EDT
In force
22 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

County Tattnall County, GA

The radar

The Charleston,SC radar (KCLX), 119 km from the middle of the area, began a volume at 18:40 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 13, 12:32 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 6.7 hours before the alert went out and 178 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 2009-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2009-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
3 J/kg
Mixed-layer CIN
-232 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
214 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.

000 
WFUS52 KCHS 131840
TORCHS
GAC267-131915-
/O.NEW.KCHS.TO.W.0007.090413T1840Z-090413T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHARLESTON SC
240 PM EDT MON APR 13 2009

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL TATTNALL COUNTY IN SOUTHEAST GEORGIA...

* UNTIL 315 PM EDT

* AT 240 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES SOUTH OF
  REIDSVILLE...MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THE STORM INCLUDE...
  REIDSVILLE...HUGHLAND...

A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES. MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST
FLOOR. 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.

LAT...LON 3217 8208 3203 8195 3194 8217 3202 8221
TIME...MOT...LOC 1840Z 241DEG 33KT 3201 8211

$$
2 follow-up statements
000 
WWUS52 KCHS 131855
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
255 PM EDT MON APR 13 2009

GAC267-131915-
/O.CON.KCHS.TO.W.0007.000000T0000Z-090413T1915Z/
TATTNALL GA-
253 PM EDT MON APR 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR CENTRAL
TATTNALL COUNTY...

AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS 
THUNDERSTORM WAS LOCATED NEAR HUGHLAND...OR ABOUT OVER 
REIDSVILLE...MOVING NORTHEAST AT 30 MPH.

A TORNADO MAY FORM AT ANY TIME. TAKE COVER NOW. ABANDON MOBILE HOMES
AND VEHICLES. MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST
FLOOR. 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 3217 8208 3203 8195 3194 8217 3202 8221
TIME...MOT...LOC 1853Z 225DEG 25KT 3203 8206

$$
000 
WWUS52 KCHS 131902
SVSCHS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
302 PM EDT MON APR 13 2009

GAC267-131911-
/O.CAN.KCHS.TO.W.0007.000000T0000Z-090413T1915Z/
TATTNALL GA-
301 PM EDT MON APR 13 2009

...THE TORNADO WARNING FOR CENTRAL TATTNALL COUNTY HAS BEEN
CANCELLED...

AT 258 PM EDT...RADAR INDICATED THAT THE TORNADIC THUNDERSTORM WHICH 
PROMPTED THE WARNING WAS NO LONGER CAPABLE OF PRODUCING TORNADOES. 
THE TORNADO WARNING HAS THEREFORE BEEN CANCELLED.

ALTHOUGH THE TORNADO WARNING IS NO LONGER IN EFFECT...THUNDERSTORMS 
ARE STILL CAPABLE OF PRODUCING GUSTY WINDS...HAIL...FREQUENT 
LIGHTNING AND HEAVY RAINFALL. THE SAFEST COURSE OF ACTION IS TO 
REMAIN INDOORS UNTIL THE STORMS HAVE PASSED.

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 3217 8208 3203 8195 3194 8217 3202 8221
TIME...MOT...LOC 1901Z 225DEG 25KT 3207 8201

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 4:23 AM EDTGale WatchCHS12 hr
Apr 13, 4:23 AM EDTSmall Craft AdvisoryCHS55 hr
Apr 13, 2:29 PM EDTSevere Thunderstorm WarningCHSTattnall46 min
Apr 13, 3:00 PM EDTSevere Thunderstorm WarningCHSLong, Tattnall60 min
Apr 13, 3:16 PM EDTTornado WarningCHSLong, Tattnall44 min
Apr 13, 3:28 PM EDTSevere Thunderstorm WarningCHSBryan, Liberty, Long, Tattnall62 min
Apr 13, 3:40 PM EDTTornado WarningCHSLiberty, Long50 min
Apr 13, 3:52 PM EDTAreal Flood AdvisoryCHSBryan, Bulloch, Effingham, Evans, Screven, Tattnall53 min
Apr 13, 4:07 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Effingham, Liberty53 min
Apr 13, 4:08 PM EDTSevere Thunderstorm WarningCHSLiberty, Long, McIntosh67 min
Apr 13, 4:14 PM EDTTornado WarningCHSBryan, Chatham, Liberty46 min
Apr 13, 4:16 PM EDTTornado WarningCHSLiberty, Long, McIntosh44 min
Apr 13, 4:42 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty, McIntosh63 min
Apr 13, 4:50 PM EDTTornado WarningCHSLiberty, McIntosh40 min
Apr 13, 4:54 PM EDTSpecial Marine WarningCHS2 hr
Apr 13, 4:56 PM EDTSevere Thunderstorm WarningCHSBryan, Chatham, Liberty64 min
Apr 13, 5:32 PM EDTAreal Flood AdvisoryCHSBryan, Chatham88 min
Apr 13, 5:54 PM EDTSpecial Marine WarningCHS68 min
Apr 13, 6:17 PM EDTAreal Flood AdvisoryCHSMcIntosh58 min
Apr 13, 6:44 PM EDTSpecial Marine WarningCHS2 hr

Nearby

Tornado Warnings in Georgia, 2009Every tornado warning in 2009Tornadoes in 2009

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.