Alert archive / Georgia / Tornado Warnings in 2011

Tornado Warning 96, NWS Atlanta, GA

November 16, 2011DeKalb County, Fulton County, Gwinnett County, Georgia

NWS Atlanta, GA issued this tornado warning at Nov 16, 2011, 1:44 PM EST for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 26 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, 1:44 PM EST (18:44 UTC)
Expired
Nov 16, 2011, 2:10 PM EST
In force
26 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 80 km from the middle of the area, began a volume at 18:46 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
Nov 16, 10:46 AM ESTTornado WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.7 hours before the alert went out and 77 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 627 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
627 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

441 
WFUS52 KFFC 161844
TORFFC
GAC089-121-135-161930-
/O.NEW.KFFC.TO.W.0096.111116T1844Z-111116T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
144 PM EST WED NOV 16 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  EAST CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA
  CENTRAL GWINNETT COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 230 PM EST

* AT 141 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SANDY
  SPRINGS...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CHAMBLEE...DORAVILLE...NORCROSS...BERKELEY LAKE...DULUTH...SUWANEE
  AND LAWRENCEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT USE HIGHWAY OVERPASSES FOR SHELTER. OVERPASSES DO NOT PROVIDE
PROTECTION FROM TORNADIC WINDS. VEHICLES STOPPED UNDER BRIDGES BLOCK
TRAFFIC AND PREVENT PEOPLE FROM GETTING OUT OF THE STORMS PATH AND TO
SHELTER. IF YOU CANNOT DRIVE AWAY FROM THE TORNADO...GET OUT OF YOUR
VEHICLE AND LIE FLAT IN A DITCH AS A LAST RESORT.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

&&

LAT...LON 3410 8395 3394 8394 3385 8438 3394 8440
TIME...MOT...LOC 1844Z 249DEG 40KT 3392 8433

$$
2 follow-up statements
835 
WWUS52 KFFC 161857
SVSFFC

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

GAC089-161906-
/O.CAN.KFFC.TO.W.0096.000000T0000Z-111116T1930Z/
DEKALB GA-
157 PM EST WED NOV 16 2011

...THE TORNADO WARNING FOR NORTHWESTERN DEKALB COUNTY IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS EXITED DEKALB COUNTY.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

LAT...LON 3394 8394 3389 8422 3392 8426 3398 8428
      3410 8395
TIME...MOT...LOC 1856Z 249DEG 40KT 3397 8418

$$

GAC121-135-161930-
/O.CON.KFFC.TO.W.0096.000000T0000Z-111116T1930Z/
GWINNETT GA-FULTON GA-
157 PM EST WED NOV 16 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM EST FOR
NORTHEASTERN FULTON AND CENTRAL GWINNETT COUNTIES...

AT 155 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A STRONG STORM WITH A POSSIBLE TORNADO. THIS STORM WAS 
LOCATED NEAR BERKELEY LAKE...MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PLEASANT HILL...DULUTH...SUWANEE AND LAWRENCEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE GROUND FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR SMALL ROOM SUCH AS A CLOSET. USE BLANKETS OR
PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

&&

LAT...LON 3394 8394 3389 8422 3392 8426 3398 8428
      3410 8395
TIME...MOT...LOC 1856Z 249DEG 40KT 3397 8418

$$
340 
WWUS52 KFFC 161910
SVSFFC

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

GAC121-135-161919-
/O.CAN.KFFC.TO.W.0096.000000T0000Z-111116T1930Z/
GWINNETT GA-FULTON GA-
210 PM EST WED NOV 16 2011

...THE TORNADO WARNING FOR NORTHEASTERN FULTON AND CENTRAL GWINNETT
COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS EXITED FULTON AND GWINNETT 
COUNTIES. THE THUNDERSTORM HAS WEAKENED AND IS NO LONGER SUSPECTED 
TO BE PRODUCING A TORNADO. HOWEVER...STRONG GUSTY WINDS UP TO 45 
MPH...VERY HEAVY RAIN...AND SMALL HAIL ARE STILL POSSIBLE WITH THIS 
STORM.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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 GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

LAT...LON 3394 8394 3389 8422 3392 8426 3398 8428
      3410 8395
TIME...MOT...LOC 1909Z 249DEG 40KT 3402 8402

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 16, 11:23 AM ESTSpecial Weather StatementFFCDade67 min
Nov 16, 12:04 PM ESTSpecial Weather StatementFFCFloyd, Polk41 min
Nov 16, 12:22 PM ESTSpecial Weather StatementFFCCarroll, Douglas38 min
Nov 16, 12:46 PM ESTTornado WarningFFCCobb, Paulding29 min
Nov 16, 1:06 PM ESTTornado WarningFFCCherokee, Cobb, Fulton39 min
Nov 16, 1:11 PM ESTTornado WarningFFCHarris, Troup49 min
Nov 16, 1:25 PM ESTSevere Thunderstorm WarningFFCCobb, DeKalb, Fulton35 min
Nov 16, 1:28 PM ESTSevere Thunderstorm WarningFFCCherokee, Forsyth47 min
Nov 16, 1:42 PM ESTSpecial Weather StatementFFCFannin, Murray48 min
Nov 16, 1:52 PM ESTTornado WarningFFCHarris, Meriwether, Talbot, Upson38 min
Nov 16, 1:59 PM ESTSevere Thunderstorm WarningFFCFannin, Union31 min
Nov 16, 2:04 PM ESTSpecial Weather StatementFFCHall26 min
Nov 16, 2:13 PM ESTSpecial Weather StatementFFCChattahoochee, Marion, Muscogee47 min
Nov 16, 2:24 PM ESTTornado WarningFFCLamar, Meriwether, Pike, Talbot, Upson36 min
Nov 16, 2:37 PM ESTSpecial Weather StatementFFCMurray53 min
Nov 16, 2:41 PM ESTSevere Thunderstorm WarningFFCChattahoochee, Marion24 min
Nov 16, 2:56 PM ESTSpecial Weather StatementFFCJasper, Lamar, Monroe34 min
Nov 16, 3:00 PM ESTSpecial Weather StatementFFCStewart, Webster45 min
Nov 16, 3:08 PM ESTTornado WarningFFCJasper, Jones, Monroe, Putnam39 min
Nov 16, 3:20 PM ESTSevere Thunderstorm WarningFFCBibb, Twiggs, Wilkinson40 min
Nov 16, 3:32 PM ESTSevere Thunderstorm WarningFFCGlascock, Jefferson, Washington58 min
Nov 16, 3:38 PM ESTSpecial Weather StatementFFCMacon, Marion, Schley, Sumter, Webster37 min
Nov 16, 3:44 PM ESTSpecial Weather StatementFFCHancock, Putnam46 min
Nov 16, 3:44 PM ESTTornado WarningFFCGlascock, Jefferson, Washington46 min
Nov 16, 3:54 PM ESTSevere Thunderstorm WarningFFCBleckley, Houston, Twiggs36 min
Nov 16, 4:03 PM ESTSevere Thunderstorm WarningFFCBaldwin, Washington, Wilkinson42 min
Nov 16, 4:13 PM ESTSpecial Weather StatementFFCMacon, Schley, Sumter, Taylor32 min
Nov 16, 4:17 PM ESTSevere Thunderstorm WarningFFCLaurens, Wilkinson43 min
Nov 16, 4:21 PM ESTSpecial Weather StatementFFCDooly39 min
Nov 16, 4:23 PM ESTTornado WarningFFCJefferson, Washington37 min
Nov 16, 4:50 PM ESTTornado WarningFFCJohnson, Laurens40 min
Nov 16, 5:00 PM ESTSpecial Weather StatementFFCCrisp30 min
Nov 16, 5:00 PM ESTTornado WarningFFCJefferson45 min
Nov 16, 5:06 PM ESTTornado WarningFFCJefferson39 min
Nov 16, 5:21 PM ESTSpecial Weather StatementFFCCrisp, Pulaski, Wilcox24 min
Nov 16, 5:27 PM ESTTornado WarningFFCEmanuel48 min
Nov 16, 5:41 PM ESTSpecial Weather StatementFFCDodge, Pulaski, Wilcox49 min
Nov 16, 5:54 PM ESTSevere Thunderstorm WarningFFCDodge, Telfair, Wilcox51 min
Nov 16, 6:40 PM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler37 min
Nov 16, 6:51 PM ESTTornado WarningFFCMontgomery, Telfair, Wheeler39 min

Nearby

Tornado Warnings in Georgia, 2011Every tornado warning in 2011Tornadoes 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; radar from the NEXRAD Level II archive.