Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 22, NWS Atlanta, GA

February 28, 2011Meriwether County, Troup County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 28, 2011, 6:36 PM EST for Meriwether County, Troup County, Georgia. It was in force for 39 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: Feb 28, 2011, 6:36 PM EST (23:36 UTC)
Expired: Feb 28, 2011, 7:15 PM EST
In force: 39 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Meriwether County, GA, Troup County, GA

The radar

The Atlanta radar (KFFC), 57 km from the middle of the area, began a volume at 23:37 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.

Issued	Product	Office	Lasted
Feb 28, 1:29 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.6 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 350 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

972 
WUUS52 KFFC 282336
SVRFFC
GAC199-285-010015-
/O.NEW.KFFC.SV.W.0022.110228T2336Z-110301T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
636 PM EST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA
  SOUTHERN TROUP COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 715 PM EST

* AT 632 PM EST...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 9 MILES
  NORTHWEST OF WEST POINT...MOVING EAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  LAGRANGE...GREENVILLE...WARM SPRINGS AND GAY.

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 800 PM EST MONDAY EVENING FOR
NORTHERN GEORGIA.

&&

LAT...LON 3310 8455 3284 8464 3284 8470 3286 8475
      3287 8475 3286 8480 3287 8512 3287 8519
      3289 8520 3303 8523 3308 8522
TIME...MOT...LOC 2336Z 280DEG 41KT 3296 8523

$$

1 follow-up statement

950 
WWUS52 KFFC 010002
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
702 PM EST MON FEB 28 2011

GAC199-285-010015-
/O.CON.KFFC.SV.W.0022.000000T0000Z-110301T0015Z/
TROUP GA-MERIWETHER GA-
702 PM EST MON FEB 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EST
FOR SOUTHERN MERIWETHER AND SOUTHERN TROUP COUNTIES...

AT 655 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POTENTIAL SEVERE THUNDERSTORM CAPABLE OF PRODUCING 
QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS 
LOCATED NEAR CANNONVILLE...MOVING EAST AT 45 MPH. HOWEVER...THE 
STORM IS SHOWING SIGNS OF WEAKENING ON RADAR AND THE WARNING WILL BE
ALLOWED TO EXPIRE.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JONES
CROSSROADS...BAUGHS CROSSROADS...LOUISE...BIG SPRINGS...MOUNTVILLE...
STOVALL...ODESSADALE...RALEIGH...HARRIS CITY...DURAND...WARM
SPRINGS...GAY AND GREENVILLE.

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 EST MONDAY EVENING FOR
NORTHERN GEORGIA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EST
MONDAY EVENING FOR NORTHERN GEORGIA.

&&

LAT...LON 3310 8455 3284 8464 3284 8470 3286 8475
      3287 8475 3286 8480 3287 8512 3287 8519
      3289 8520 3303 8523 3308 8522
TIME...MOT...LOC 2359Z 280DEG 41KT 3293 8504

$$

16

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 4:04 AM EST	Wind Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	15 hr
Feb 28, 2:25 PM EST	Severe Thunderstorm Warning	FFC	Catoosa, Dade, Walker	50 min
Feb 28, 2:45 PM EST	Severe Thunderstorm Warning	FFC	Murray, Whitfield	45 min
Feb 28, 3:08 PM EST	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Floyd, Walker	37 min
Feb 28, 3:13 PM EST	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	32 min
Feb 28, 3:29 PM EST	Severe Thunderstorm Warning	FFC	Towns, Union	31 min
Feb 28, 3:42 PM EST	Severe Thunderstorm Warning	FFC	Bartow, Chattooga, Floyd, Gordon	48 min
Feb 28, 3:50 PM EST	Severe Thunderstorm Warning	FFC	Bartow, Floyd, Polk	25 min
Feb 28, 4:09 PM EST	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Pickens	51 min
Feb 28, 4:17 PM EST	Severe Thunderstorm Warning	FFC	Bartow, Floyd	13 min
Feb 28, 4:32 PM EST	Tornado Warning	FFC	Bartow, Cherokee, Cobb, Paulding	28 min
Feb 28, 4:40 PM EST	Severe Thunderstorm Warning	FFC	Dawson, Forsyth, Hall	50 min
Feb 28, 4:56 PM EST	Tornado Warning	FFC	Cherokee, Cobb, Forsyth, Fulton	35 min
Feb 28, 5:04 PM EST	Severe Thunderstorm Warning	FFC	Carroll, Haralson, Paulding, Polk	41 min
Feb 28, 5:16 PM EST	Severe Thunderstorm Warning	FFC	Banks, Barrow, Clarke, Gwinnett, Hall, Jackson and 3 more	44 min
Feb 28, 5:49 PM EST	Severe Thunderstorm Warning	FFC	Carroll, Cobb, Douglas, Fulton, Paulding	41 min
Feb 28, 5:55 PM EST	Tornado Warning	FFC	Douglas, Fulton	35 min
Feb 28, 6:12 PM EST	Severe Thunderstorm Warning	FFC	Clayton, DeKalb, Henry, Newton, Rockdale	33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011 Every 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; radar from the NEXRAD Level II archive.