Alert archive / Georgia / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 168, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 15, 2011, 8:45 PM EDT for Cobb County, Douglas County, Paulding County, Georgia. It was in force for 45 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
- Apr 15, 2011, 8:45 PM EDT (00:45 UTC)
- Expired
- Apr 15, 2011, 9:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Cobb County, GA, Douglas County, GA, Paulding County, GA
The radar
The Atlanta radar (KFFC), 62 km from the middle of the area, began a volume at 00:45 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 15, 8:45 PM EDT | HAIL 1 | 8 E Marietta, GA | |
| Apr 15, 9:08 PM EDT | TSTM WND DMG | 2 Sw Smyrna, GA | NUMEROUS TREES DOWN AT GREEN FOREST PKWY. ROAD CLOSED AT SO. COBB DR. AND SO. ATLANTA RD. |
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 15, 5:46 PM EDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.8 hours before the alert went out and 61 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
- 406 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 1138 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 373 m²/s²
- 0-3 km storm-relative helicity
- 566 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 11.3
The text
As transmitted, in the capitals the NWS used until 2016.
885
WUUS52 KFFC 160045
SVRFFC
GAC067-097-223-160130-
/O.NEW.KFFC.SV.W.0168.110416T0045Z-110416T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
845 PM EDT FRI APR 15 2011
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
COBB COUNTY IN NORTH CENTRAL GEORGIA
NORTHEASTERN DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
SOUTHEASTERN PAULDING COUNTY IN NORTHWEST GEORGIA
* UNTIL 930 PM EDT
* AT 840 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
DOUGLASVILLE...MOVING NORTHEAST AT 30 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
LITHIA SPRINGS...POWDER SPRINGS...AUSTELL...SMYRNA AND MARIETTA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.
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 MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3404 8446 3405 8442 3404 8440 3401 8440
3398 8437 3391 8445 3388 8444 3385 8446
3383 8445 3375 8457 3368 8478 3383 8488
TIME...MOT...LOC 0045Z 243DEG 26KT 3381 8470
$$3 follow-up statements
299
WWUS52 KFFC 160054
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
854 PM EDT FRI APR 15 2011
GAC223-160103-
/O.CAN.KFFC.SV.W.0168.000000T0000Z-110416T0130Z/
PAULDING GA-
854 PM EDT FRI APR 15 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PAULDING COUNTY
IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS EXITED PAULDING
COUNTY...THUS...THE SEVERE THUNDERSTORM WARNING IS CANCELED FOR
PAULDING COUNTY.
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.
LAT...LON 3385 8471 3404 8446 3405 8442 3404 8441
3401 8440 3398 8437 3391 8445 3388 8444
3385 8446 3383 8445 3376 8457 3371 8471
TIME...MOT...LOC 0053Z 243DEG 26KT 3384 8464
$$
GAC067-097-160130-
/O.CON.KFFC.SV.W.0168.000000T0000Z-110416T0130Z/
COBB GA-DOUGLAS GA-
854 PM EDT FRI APR 15 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR NORTHEASTERN DOUGLAS AND SOUTHERN COBB COUNTIES...
AT 849 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. THIS STORM WAS LOCATED NEAR
AUSTELL...MOVING NORTHEAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MABLETON...JIM R MILLER PARK...SMYRNA...MARIETTA...DOBBINS AIR
RESERVE BASE...VININGS...WHITE WATER PARK...SANDY PLAINS AND MOUNT
BETHEL.
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 MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3385 8471 3404 8446 3405 8442 3404 8441
3401 8440 3398 8437 3391 8445 3388 8444
3385 8446 3383 8445 3376 8457 3371 8471
TIME...MOT...LOC 0053Z 243DEG 26KT 3384 8464
$$934
WWUS52 KFFC 160104
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
904 PM EDT FRI APR 15 2011
GAC097-160113-
/O.CAN.KFFC.SV.W.0168.000000T0000Z-110416T0130Z/
DOUGLAS GA-
904 PM EDT FRI APR 15 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DOUGLAS COUNTY IS
CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS EXITED DOUGLAS
COUNTY...THUS...THE SEVERE THUNDERSTORM WARNING IS CANCELED FOR
DOUGLAS COUNTY.
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.
LAT...LON 3385 8471 3404 8446 3405 8442 3401 8440
3398 8437 3391 8445 3388 8444 3385 8446
3383 8446 3376 8459 3380 8462 3381 8471
TIME...MOT...LOC 0103Z 243DEG 26KT 3387 8456
$$
GAC067-160130-
/O.CON.KFFC.SV.W.0168.000000T0000Z-110416T0130Z/
COBB GA-
904 PM EDT FRI APR 15 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTHERN COBB COUNTY...
AT 859 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS
STORM WAS LOCATED NEAR JIM R MILLER PARK...MOVING NORTHEAST AT 30
MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SMYRNA...MARIETTA...DOBBINS AIR RESERVE BASE...VININGS...WHITE WATER
PARK...SANDY PLAINS AND MOUNT BETHEL.
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 MIDNIGHT EDT SATURDAY MORNING
FOR NORTHERN GEORGIA.
&&
LAT...LON 3385 8471 3404 8446 3405 8442 3401 8440
3398 8437 3391 8445 3388 8444 3385 8446
3383 8446 3376 8459 3380 8462 3381 8471
TIME...MOT...LOC 0103Z 243DEG 26KT 3387 8456
$$922
WWUS52 KFFC 160116
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
916 PM EDT FRI APR 15 2011
GAC067-160130-
/O.CON.KFFC.SV.W.0168.000000T0000Z-110416T0130Z/
COBB GA-
916 PM EDT FRI APR 15 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR EAST CENTRAL COBB COUNTY...
AT 913 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
DOBBINS AIR RESERVE BASE...MOVING NORTHEAST AT 30 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOUNT
BETHEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM EDT SATURDAY MORNING
FOR GEORGIA.
&&
LAT...LON 3404 8446 3405 8442 3401 8440 3398 8437
3391 8445 3388 8444 3387 8445 3383 8446
3395 8455
TIME...MOT...LOC 0116Z 243DEG 26KT 3391 8446
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 8:02 PM EDT | Tornado Warning | FFC | Cobb, DeKalb, Fulton | 43 min |
| Apr 15, 8:12 PM EDT | Severe Thunderstorm Warning | FFC | Lamar, Meriwether, Pike, Talbot, Upson | 48 min |
| Apr 15, 8:19 PM EDT | Severe Thunderstorm Warning | FFC | Barrow, Gwinnett | 41 min |
| Apr 15, 8:28 PM EDT | Severe Thunderstorm Warning | FFC | Forsyth, Hall | 47 min |
| Apr 15, 8:56 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Lamar, Monroe, Pike, Upson | 49 min |
| Apr 15, 9:18 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Jasper, Jones, Monroe | 42 min |
| Apr 15, 9:19 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Forsyth, Fulton, Gwinnett | 41 min |
| Apr 15, 10:44 PM EDT | River Flood Warning | FFC | Forsyth, Fulton | 40 hr |
| Apr 15, 11:44 PM EDT | River Flood Warning | FFC | Cobb | 6 hr |
| Apr 16, 12:17 AM EDT | River Flood Warning | FFC | Forsyth | 14 hr |
| Apr 16, 12:47 AM EDT | River Flood Warning | FFC | Dade | 34 hr |
| Apr 16, 1:25 AM EDT | Severe Thunderstorm Warning | FFC | Heard, Troup | 50 min |
| Apr 16, 1:40 AM EDT | Severe Thunderstorm Warning | FFC | Bartow, Carroll, Haralson, Paulding | 50 min |
| Apr 16, 1:54 AM EDT | Severe Thunderstorm Warning | FFC | Carroll, Coweta, Fulton, Meriwether | 51 min |
| Apr 16, 2:10 AM EDT | Tornado Warning | FFC | Carroll, Cobb, Douglas, Fulton, Paulding | 50 min |
| Apr 16, 2:38 AM EDT | Severe Thunderstorm Warning | FFC | Clayton, DeKalb, Fayette, Fulton, Henry, Newton and 1 more | 52 min |
| Apr 16, 2:46 AM EDT | Severe Thunderstorm Warning | FFC | Harris | 44 min |
| Apr 16, 3:15 AM EDT | Severe Thunderstorm Warning | FFC | Harris, Muscogee | 45 min |
| Apr 16, 3:26 AM EDT | Severe Thunderstorm Warning | FFC | Meriwether | 49 min |
| Apr 16, 3:35 AM EDT | Wind Advisory | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more | 16 hr |
| Apr 16, 3:39 AM EDT | Tornado Warning | FFC | Harris, Talbot | 36 min |
| Apr 16, 3:51 AM EDT | Severe Thunderstorm Warning | FFC | Lamar, Meriwether, Pike, Spalding | 39 min |
| Apr 16, 4:04 AM EDT | Severe Thunderstorm Warning | FFC | Meriwether, Pike, Talbot, Upson | 26 min |
| Apr 16, 4:40 AM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Macon, Marion, Muscogee, Talbot | 50 min |
| Apr 16, 4:45 AM EDT | Tornado Warning | FFC | Chattahoochee, Marion, Muscogee | 45 min |
| Apr 16, 5:12 AM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Crawford, Marion, Talbot, Taylor, Upson | 48 min |
| Apr 16, 5:48 AM EDT | Tornado Warning | FFC | Bibb, Crawford, Monroe, Taylor | 42 min |
| Apr 16, 6:14 AM EDT | Tornado Warning | FFC | Baldwin, Jones, Putnam | 46 min |
| Apr 16, 6:26 AM EDT | River Flood Warning | FFC | Whitfield | 64 hr |
| Apr 16, 8:42 AM EDT | River Flood Warning | FFC | Cobb | 7 hr |
| Apr 16, 10:34 AM EDT | River Flood Warning | FFC | Gordon, Murray, Whitfield | 28 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.