Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 511, NWS Atlanta, GA

November 16, 2011Toombs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Nov 16, 2011, 7:26 PM EST for Toombs County, Georgia. It was in force for 23 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
Nov 16, 2011, 7:26 PM EST (00:26 UTC)
Expired
Nov 16, 2011, 7:49 PM EST
In force
23 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

County Toombs County, GA

The watch it was issued in

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

IssuedProductOfficeLasted
Nov 16, 1:35 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 0.4 hours before the alert went out and 192 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 00:00Z on 2011-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 769 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, Jacksonville, FL at 00:00Z on 2011-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
769 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.6
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

058 
WUUS52 KFFC 170026
SVRFFC
GAC279-170115-
/O.NEW.KFFC.SV.W.0511.111117T0026Z-111117T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
726 PM EST WED NOV 16 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL TOOMBS COUNTY IN SOUTHEAST GEORGIA

* UNTIL 815 PM EST

* AT 722 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZED
  HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THESE STORMS WERE 
  LOCATED   ALONG A LINE EXTENDING FROM NEAR VIDALIA TO CEDAR 
  CROSSING...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  JOHNSON CORNER...PONDEROSA...NEW BRANCH AND OHOOPEE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR SOUTHEASTERN GEORGIA.

&&

LAT...LON 3202 8220 3198 8248 3210 8242 3217 8245
      3220 8245 3221 8244 3227 8222 3225 8220
      3222 8220 3218 8218
TIME...MOT...LOC 0026Z 257DEG 40KT 3218 8233 3212 8231
          3204 8236

$$
1 follow-up statement
938 
WWUS52 KFFC 170049
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
749 PM EST WED NOV 16 2011

GAC279-170058-
/O.CAN.KFFC.SV.W.0511.000000T0000Z-111117T0115Z/
TOOMBS GA-
749 PM EST WED NOV 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL TOOMBS COUNTY HAS 
BEEN CANCELLED...

THE THUNDERSTORM HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE 
SEVERE WEATHER. LIGHT TO MODERATE RAIN AND OCCASIONAL 
CLOUD-TO-GROUND LIGHTNING WILL CONTINUE ACROSS TOOMBS COUNTY FOR 
ANOTHER 30 TO 45 MINUTES...BUT SEVERE WEATHER IS NO LONGER EXPECTED 
AT THIS TIME.

LAT...LON 3202 8220 3198 8248 3210 8242 3217 8245
      3220 8245 3221 8244 3227 8222 3225 8220
      3222 8220 3218 8218
TIME...MOT...LOC 0048Z 257DEG 40KT 3223 8205 3217 8203
          3209 8208

$$



19

Nearby

Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning in 2011

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.