Alert archive / Georgia / Tornado Warnings in 2011

Tornado Warning 69, NWS Atlanta, GA

September 5, 2011Cobb County, Paulding County, Georgia

NWS Atlanta, GA issued this tornado warning at Sep 5, 2011, 2:27 PM EDT for Cobb County, Paulding County, Georgia. It was in force for 48 min. 2 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
Sep 5, 2011, 2:27 PM EDT (18:27 UTC)
Expired
Sep 5, 2011, 3:15 PM EDT
In force
48 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Cobb County, GA, Paulding County, GA

The radar

The Atlanta radar (KFFC), 64 km from the middle of the area, began a volume at 18:29 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
Sep 5, 2:35 PM EDTTORNADOPowder Springs, GAAMATEUR RADIO RELAYED A REPORT FROM A TRAINED SPOTTER OF A TORNADO NEAR POWDER SPRINGS.
Sep 5, 2:45 PM EDTTORNADOPowder Springs, GAAMATEUR RADIO RELAYED TRAINED SPOTTER REPORT OF TORNADO IN THE MACKLIN WOODS AREA OF POWDER SPRINGS.

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
Sep 5, 12:10 PM EDTTornado WatchSPC4 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.5 hours before the alert went out and 64 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 2011-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 279 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 2011-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 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
279 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
471 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
228 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

854 
WFUS52 KFFC 051827
TORFFC
GAC067-223-051915-
/O.NEW.KFFC.TO.W.0069.110905T1827Z-110905T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
227 PM EDT MON SEP 5 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN COBB COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN PAULDING COUNTY IN NORTHWEST GEORGIA

* UNTIL 315 PM EDT

* AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A ROTATING THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  SOUTH OF HIRAM...MOVING NORTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  POWDER SPRINGS...MARIETTA...KENNESAW AND ACWORTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

&&

LAT...LON 3408 8473 3407 8442 3405 8441 3380 8467
      3380 8472 3379 8473 3378 8483
TIME...MOT...LOC 1826Z 208DEG 28KT 3378 8475

$$
4 follow-up statements
100 
WWUS52 KFFC 051838
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
238 PM EDT MON SEP 5 2011

GAC067-223-051915-
/O.CON.KFFC.TO.W.0069.000000T0000Z-110905T1915Z/
PAULDING GA-COBB GA-
238 PM EDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
NORTHWESTERN COBB AND SOUTHEASTERN PAULDING COUNTIES...

AT 233 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS
TORNADO WAS LOCATED NEAR POWDER SPRINGS...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LOST
MOUNTAIN PARK...JIM R MILLER PARK...DUE WEST...MARIETTA...WHITE WATER
PARK...KENNESAW...ACWORTH...KENNESAW STATE UNIVERSITY...SANDY PLAINS
AND SWEAT MOUNTAIN.

TROPICAL ENVIRONMENTS LIKE WE HAVE TODAY CAN PRODUCE TORNADOES THAT 
DEVELOP RAPIDLY AND GIVE LITTLE TIME FOR WARNING.  SUCH TORNADOES 
ALSO FORM WITH LITTLE OR NO LIGHTNING ACTIVITY. TAKE PRECAUTIONS NOW 
TO RESPOND QUICKLY IN THE EVENT A WARNING IS ISSUED OR A TORNADO IS 
SPOTTED IN YOUR AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

&&

LAT...LON 3408 8473 3407 8442 3405 8441 3380 8467
      3380 8472 3379 8473 3378 8483
TIME...MOT...LOC 1837Z 208DEG 28KT 3386 8470

$$
349 
WWUS52 KFFC 051845
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
245 PM EDT MON SEP 5 2011

GAC223-051854-
/O.CAN.KFFC.TO.W.0069.000000T0000Z-110905T1915Z/
PAULDING GA-
245 PM EDT MON SEP 5 2011

...THE TORNADO WARNING FOR SOUTHEASTERN PAULDING COUNTY IS
CANCELLED...

.

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

LAT...LON 3408 8473 3407 8442 3405 8441 3380 8467
      3380 8472 3392 8473 3394 8472 3395 8474
      3403 8474
TIME...MOT...LOC 1844Z 208DEG 28KT 3391 8467

$$

GAC067-051915-
/O.CON.KFFC.TO.W.0069.000000T0000Z-110905T1915Z/
COBB GA-
245 PM EDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
NORTHWESTERN COBB COUNTY...

AT 235 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS 
TORNADO WAS LOCATED NORTH OF POWDER SPRINGS...MOVING NORTHEAST AT 30 
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LOST 
MOUNTAIN PARK...JIM R MILLER PARK...MARIETTA...WHITE WATER 
PARK...KENNESAW...ACWORTH...KENNESAW STATE UNIVERSITY...SANDY PLAINS 
AND SWEAT MOUNTAIN.

TROPICAL ENVIRONMENTS LIKE WE HAVE TODAY CAN PRODUCE TORNADOES THAT 
DEVELOP RAPIDLY AND GIVE LITTLE TIME FOR WARNING.  SUCH TORNADOES 
ALSO FORM WITH LITTLE OR NO LIGHTNING ACTIVITY. TAKE PRECAUTIONS NOW 
TO RESPOND QUICKLY IN THE EVENT A WARNING IS ISSUED OR A TORNADO IS 
SPOTTED IN YOUR AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

&&

LAT...LON 3408 8473 3407 8442 3405 8441 3380 8467
      3380 8472 3392 8473 3394 8472 3395 8474
      3403 8474
TIME...MOT...LOC 1844Z 208DEG 28KT 3391 8467

$$
023 
WWUS52 KFFC 051849
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
249 PM EDT MON SEP 5 2011

GAC067-051915-
/O.CON.KFFC.TO.W.0069.000000T0000Z-110905T1915Z/
COBB GA-
249 PM EDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
NORTHWESTERN COBB COUNTY...

AT 247 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR 
POWDER SPRINGS. THIS TORNADO WAS LOCATED NEAR LOST MOUNTAIN 
PARK...MOVING NORTHEAST AT 35 MPH.

TROPICAL ENVIRONMENTS LIKE WE HAVE TODAY CAN PRODUCE TORNADOES THAT 
DEVELOP RAPIDLY AND GIVE LITTLE TIME FOR WARNING.  SUCH TORNADOES 
ALSO FORM WITH LITTLE OR NO LIGHTNING ACTIVITY. TAKE PRECAUTIONS NOW 
TO RESPOND QUICKLY IN THE EVENT A WARNING IS ISSUED OR A TORNADO IS 
SPOTTED IN YOUR AREA.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MARIETTA...WHITE WATER PARK...KENNESAW...ACWORTH...KENNESAW STATE
UNIVERSITY...SANDY PLAINS AND SWEAT MOUNTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

&&

LAT...LON 3408 8473 3407 8442 3405 8441 3380 8467
      3380 8472 3392 8473 3394 8472 3395 8474
      3403 8474
TIME...MOT...LOC 1849Z 212DEG 29KT 3395 8465

$$
372 
WWUS52 KFFC 051855
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
255 PM EDT MON SEP 5 2011

GAC067-051915-
/O.CON.KFFC.TO.W.0069.000000T0000Z-110905T1915Z/
COBB GA-
255 PM EDT MON SEP 5 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR NORTHERN
COBB COUNTY...

AT 245 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR 
POWDER SPRINGS. THIS TORNADO WAS LOCATED NEAR DUE WEST...TO THE 
SOUTHWEST OF KENNESAW...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WHITE
WATER PARK...KENNESAW...ACWORTH...KENNESAW STATE UNIVERSITY...SANDY
PLAINS AND SWEAT MOUNTAIN.

TROPICAL ENVIRONMENTS LIKE WE HAVE TODAY CAN PRODUCE TORNADOES THAT 
DEVELOP RAPIDLY AND GIVE LITTLE TIME FOR WARNING.  SUCH TORNADOES 
ALSO FORM WITH LITTLE OR NO LIGHTNING ACTIVITY. TAKE PRECAUTIONS NOW 
TO RESPOND QUICKLY IN THE EVENT A WARNING IS ISSUED OR A TORNADO IS 
SPOTTED IN YOUR AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 800 PM EDT MONDAY EVENING FOR
NORTHWESTERN GEORGIA.

&&

LAT...LON 3408 8473 3407 8442 3405 8441 3391 8456
      3395 8474 3403 8474
TIME...MOT...LOC 1854Z 212DEG 28KT 3399 8463

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 12:21 PM EDTRiver Flood WarningFFCDade59 hr
Sep 5, 12:22 PM EDTTornado WarningFFCCarroll, Haralson, Paulding23 min
Sep 5, 12:39 PM EDTTornado WarningFFCTroup36 min
Sep 5, 1:14 PM EDTTornado WarningFFCHeard, Troup20 min
Sep 5, 1:44 PM EDTTornado WarningFFCCarroll, Coweta31 min
Sep 5, 1:55 PM EDTTornado WarningFFCDouglas35 min
Sep 5, 2:10 PM EDTTornado WarningFFCCarroll, Heard35 min
Sep 5, 2:19 PM EDTTornado WarningFFCHarris, Muscogee41 min
Sep 5, 2:48 PM EDTFlash Flood WarningFFCCatoosa, Dade, Walker6 hr
Sep 5, 2:48 PM EDTTornado WarningFFCCherokee42 min
Sep 5, 2:56 PM EDTTornado WarningFFCHeard, Troup34 min
Sep 5, 2:58 PM EDTTornado WarningFFCHarris, Meriwether, Troup39 min
Sep 5, 3:00 PM EDTSpecial Weather StatementFFCBleckley, Pulaski30 min
Sep 5, 3:18 PM EDTTornado WarningFFCCarroll, Coweta, Heard42 min
Sep 5, 3:20 PM EDTSevere Thunderstorm WarningFFCBleckley, Houston, Pulaski, Twiggs25 min
Sep 5, 3:23 PM EDTTornado WarningFFCCoweta, Meriwether37 min
Sep 5, 3:26 PM EDTTornado WarningFFCBartow, Cherokee, Cobb, Paulding34 min
Sep 5, 3:27 PM EDTSpecial Weather StatementFFCTelfair, Wheeler33 min
Sep 5, 3:29 PM EDTTornado WarningFFCCherokee, Pickens31 min
Sep 5, 3:46 PM EDTTornado WarningFFCCherokee, Pickens44 min
Sep 5, 3:50 PM EDTTornado WarningFFCCoweta, Fayette40 min
Sep 5, 3:57 PM EDTTornado WarningFFCCarroll, Cobb, Douglas, Paulding48 min
Sep 5, 4:01 PM EDTTornado WarningFFCDawson, Fannin, Gilmer, Lumpkin, Pickens, Union44 min
Sep 5, 4:16 PM EDTTornado WarningFFCMorgan, Oconee29 min
Sep 5, 4:24 PM EDTTornado WarningFFCCarroll, Coweta, Douglas, Fulton36 min
Sep 5, 4:28 PM EDTTornado WarningFFCClayton, DeKalb, Fulton, Henry47 min
Sep 5, 4:34 PM EDTTornado WarningFFCJefferson20 min
Sep 5, 4:35 PM EDTTornado WarningFFCBartow, Cherokee, Cobb, Paulding40 min
Sep 5, 4:41 PM EDTTornado WarningFFCGreene, Morgan, Oconee49 min
Sep 5, 4:43 PM EDTTornado WarningFFCClarke, Oconee, Oglethorpe47 min
Sep 5, 4:49 PM EDTTornado WarningFFCCobb, Douglas, Fulton41 min
Sep 5, 4:57 PM EDTSpecial Weather StatementFFCCrawford48 min
Sep 5, 5:02 PM EDTTornado WarningFFCCrawford18 min
Sep 5, 5:16 PM EDTTornado WarningFFCCherokee, Dawson, Pickens44 min
Sep 5, 5:16 PM EDTTornado WarningFFCMadison44 min
Sep 5, 5:30 PM EDTSpecial Weather StatementFFCCobb30 min
Sep 5, 6:04 PM EDTSpecial Weather StatementFFCGwinnett, Hall41 min
Sep 5, 6:07 PM EDTTornado WarningFFCJasper, Jones, Putnam24 min
Sep 5, 6:57 PM EDTSpecial Weather StatementFFCTowns33 min
Sep 5, 7:21 PM EDTSpecial Weather StatementFFCCherokee39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.