Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 150, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 11, 2011, 10:44 PM EDT for 10 counties in Georgia. It was in force for 48 min. 3 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
- Apr 11, 2011, 10:44 PM EDT (02:44 UTC)
- Expired
- Apr 11, 2011, 11:32 PM EDT
- In force
- 48 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Bartow County, GA, Carroll County, GA, Cherokee County, GA, Cobb County, GA, Coweta County, GA, Douglas County, GA, Fulton County, GA, Haralson County, GA, Heard County, GA, Paulding County, GA
The radar
The Atlanta radar (KFFC), 45 km from the middle of the area, began a volume at 02:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 11, 11:04 PM EDT | TSTM WND DMG | Douglasville, GA | DOUGLAS COUNTY 911 RELAYED A REPORT OF ONE TREE DOWN ON A HOUSE IN DOUGLASVILLE. THE HOUSE SUFFERED DAMAGE TO ITS PORCH. |
| Apr 11, 11:12 PM EDT | TSTM WND DMG | 2 N Marietta, GA | COBB COUNTY 911 RELAYED A REPORT OF ONE TREE DOWN IN NORTH MARIETTA. |
| Apr 11, 11:28 PM EDT | TSTM WND DMG | Newnan, GA | COWETA COUNTY 911 RELAYED A REPORT OF A TREE DOWN IN NEWNAN. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 11, 8:08 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.7 hours before the alert went out and 48 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.
- Mixed-layer CAPE
- 9 J/kg
- Mixed-layer CIN
- -501 J/kg
- Mixed-layer LCL
- 1916 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 355 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
123
WUUS52 KFFC 120244
SVRFFC
GAC015-045-057-067-077-097-121-143-149-223-120345-
/O.NEW.KFFC.SV.W.0150.110412T0244Z-110412T0345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1044 PM EDT MON APR 11 2011
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA
COBB COUNTY IN NORTH CENTRAL GEORGIA
DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
FULTON COUNTY IN NORTH CENTRAL GEORGIA
SOUTHEASTERN BARTOW COUNTY IN NORTHWEST GEORGIA
CARROLL COUNTY IN NORTHWEST GEORGIA
EASTERN HARALSON COUNTY IN NORTHWEST GEORGIA
PAULDING COUNTY IN NORTHWEST GEORGIA
WESTERN COWETA COUNTY IN WEST CENTRAL GEORGIA
HEARD COUNTY IN WEST CENTRAL GEORGIA
* UNTIL 1145 PM EDT
* AT 1041 PM EDT...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 12 MILES WEST OF DALLAS TO 7 MILES
SOUTH OF EPHESUS...MOVING NORTHEAST AT 60 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ROOPVILLE...FRANKLIN...VILLA RICA...CENTRALHATCHEE...HIRAM...
CARTERSVILLE...EMERSON...ACWORTH...WHITESBURG...POWDER SPRINGS...
DOUGLASVILLE...KENNESAW...LITHIA SPRINGS...NEWNAN...MARIETTA...
AUSTELL...WOODSTOCK...CHATTAHOOCHEE HILL COUNTRY...HOLLY SPRINGS...
SMYRNA...MOUNTAIN PARK...PALMETTO...ROSWELL...MILTON...
ALPHARETTA...SANDY SPRINGS...FAIRBURN AND FREE HOME.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3381 8510 3395 8505 3395 8498 3421 8478
3425 8428 3400 8425 3396 8429 3397 8435
3389 8435 3331 8474 3319 8510 3320 8510
3317 8512 3313 8523 3346 8531
TIME...MOT...LOC 0244Z 246DEG 54KT 3399 8498 3388 8491
3333 8524
$$3 follow-up statements
488
WWUS52 KFFC 120305
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1105 PM EDT MON APR 11 2011
GAC143-120314-
/O.CAN.KFFC.SV.W.0150.000000T0000Z-110412T0345Z/
HARALSON GA-
1105 PM EDT MON APR 11 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HARALSON COUNTY IS
CANCELLED...
THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE COUNTY.
IF YOU SAW WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
LAT...LON 3355 8499 3396 8482 3421 8478 3425 8428
3400 8425 3396 8429 3397 8435 3389 8435
3331 8474 3320 8510 3313 8523 3337 8529
TIME...MOT...LOC 0304Z 255DEG 38KT 3374 8475
$$
GAC015-045-057-067-077-097-121-149-223-120345-
/O.CON.KFFC.SV.W.0150.000000T0000Z-110412T0345Z/
PAULDING GA-BARTOW GA-CARROLL GA-CHEROKEE GA-COBB GA-COWETA GA-
DOUGLAS GA-HEARD GA-FULTON GA-
1105 PM EDT MON APR 11 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR FULTON...HEARD...DOUGLAS...WESTERN COWETA...COBB...SOUTHERN
CHEROKEE...SOUTHEASTERN CARROLL...SOUTHEASTERN BARTOW AND EASTERN
PAULDING COUNTIES...
AT 1100 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THE MOST DANGEROUS PART OF
THIS STORM WAS LOCATED 3 MILES WEST OF DOUGLASVILLE...MOVING EAST
AT 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CHAPEL HILL...NEW HOPE...HIRAM...CAMPBELLTON...CROSS ROADS...
POWDER SPRINGS...LITHIA SPRINGS...SWEETWATER CREEK STATE PARK
AND AUSTELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.
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 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3355 8499 3396 8482 3421 8478 3425 8428
3400 8425 3396 8429 3397 8435 3389 8435
3331 8474 3320 8510 3313 8523 3337 8529
TIME...MOT...LOC 0304Z 255DEG 38KT 3374 8475
$$266
WWUS52 KFFC 120324
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1124 PM EDT MON APR 11 2011
GAC015-045-057-149-223-120332-
/O.CAN.KFFC.SV.W.0150.000000T0000Z-110412T0345Z/
PAULDING GA-BARTOW GA-CARROLL GA-CHEROKEE GA-HEARD GA-
1124 PM EDT MON APR 11 2011
...THE SEVERE THUNDERSTORM WARNING FOR HEARD...SOUTHERN CHEROKEE...
SOUTHEASTERN CARROLL...SOUTHEASTERN BARTOW AND EASTERN PAULDING
COUNTIES IS CANCELLED...
THE STORMS THAT PROMPTED THE WARNINGS HAVE MOVED OUT OF THE AREA.
IF YOU SAW WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
LAT...LON 3344 8494 3352 8481 3355 8483 3357 8481
3358 8484 3408 8458 3407 8442 3411 8442
3415 8427 3400 8425 3396 8429 3397 8435
3389 8437 3331 8474 3325 8495 3331 8497
TIME...MOT...LOC 0322Z 259DEG 37KT 3393 8447 3357 8482
3324 8496
$$
GAC067-077-097-121-120345-
/O.CON.KFFC.SV.W.0150.000000T0000Z-110412T0345Z/
COBB GA-COWETA GA-DOUGLAS GA-FULTON GA-
1124 PM EDT MON APR 11 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT
FOR CENTRAL FULTON...EASTERN DOUGLAS...WESTERN COWETA AND COBB
COUNTIES...
AT 1118 PM EDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED
ALONG A LINE EXTENDING FROM DOBBINS AIR RESERVE BASE TO ROSCOE TO 16
MILES SOUTHWEST OF NEWNAN...MOVING EAST AT 40 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SWEETWATER CREEK STATE PARK...ARNCO-SARGENT...VININGS...CAMPBELLTON
...SIX FLAGS...SANDY SPRINGS...ROSWELL...MADRAS...PALMETTO...
BANKHEAD...ALPHARETTA AND MILTON.
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 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3344 8494 3352 8481 3355 8483 3357 8481
3358 8484 3408 8458 3407 8442 3411 8442
3415 8427 3400 8425 3396 8429 3397 8435
3389 8437 3331 8474 3325 8495 3331 8497
TIME...MOT...LOC 0322Z 259DEG 37KT 3393 8447 3357 8482
3324 8496
$$819
WWUS52 KFFC 120332
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1132 PM EDT MON APR 11 2011
GAC067-077-097-121-120341-
/O.CAN.KFFC.SV.W.0150.000000T0000Z-110412T0345Z/
COBB GA-COWETA GA-DOUGLAS GA-FULTON GA-
1132 PM EDT MON APR 11 2011
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FULTON...EASTERN
DOUGLAS...WESTERN COWETA AND COBB COUNTIES IS CANCELLED...
THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO
LONGER SEVERE. HOWEVER...STRONG GUSTY WINDS UP TO 45 MPH...AND A
PERIOD OF HEAVY RAIN ARE STILL POSSIBLE THROUGH MIDNIGHT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT TUESDAY MORNING
FOR NORTHERN GEORGIA.
LAT...LON 3344 8494 3352 8481 3355 8483 3357 8481
3358 8484 3408 8458 3407 8442 3411 8442
3415 8427 3400 8425 3396 8429 3397 8435
3389 8437 3331 8474 3325 8495 3331 8497
TIME...MOT...LOC 0331Z 259DEG 37KT 3395 8436 3359 8471
3326 8485
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 8:38 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Chattooga, Dade, Walker | 52 min |
| Apr 11, 9:21 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Chattooga, Floyd, Gordon, Murray, Polk and 2 more | 54 min |
| Apr 11, 10:01 PM EDT | Severe Thunderstorm Warning | FFC | Carroll, Cobb, Douglas, Haralson, Paulding, Polk | 44 min |
| Apr 11, 10:11 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Fannin, Gilmer, Gordon, Murray and 2 more | 34 min |
| Apr 11, 10:40 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Dawson, Fannin, Gilmer, Lumpkin and 2 more | 65 min |
| Apr 11, 11:42 PM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Harris, Meriwether, Muscogee, Talbot, Troup | 48 min |
| Apr 12, 4:28 AM EDT | Wind Advisory | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Butts and 73 more | 16 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.