Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 101, NWS Atlanta, GA

March 28, 2011Chattahoochee County, Marion County, Schley County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 28, 2011, 1:01 AM EDT for Chattahoochee County, Marion County, Schley County, Georgia. It was in force for 44 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: Mar 28, 2011, 1:01 AM EDT (05:01 UTC)
Expired: Mar 28, 2011, 1:45 AM EDT
In force: 44 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattahoochee County, GA, Marion County, GA, Schley County, GA

The radar

The Robins AFB radar (KJGX), 110 km from the middle of the area, began a volume at 05:00 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.0 hours before the alert went out and 113 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: 643 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 20 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.

637 
WUUS52 KFFC 280501
SVRFFC
GAC053-197-249-280545-
/O.NEW.KFFC.SV.W.0101.110328T0501Z-110328T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
101 AM EDT MON MAR 28 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA
  CENTRAL MARION COUNTY IN WEST CENTRAL GEORGIA
  SCHLEY COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 145 AM EDT

* AT 1259 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED CENTERED 5    
  MILES NORTHEAST OF CUSSETA...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUENA
  VISTA AND ELLAVILLE.

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 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.

&&

LAT...LON 3229 8484 3242 8482 3242 8478 3246 8474
      3244 8439 3241 8439 3243 8436 3238 8435
      3240 8432 3237 8432 3237 8425 3230 8425
      3229 8422 3223 8422 3218 8423
TIME...MOT...LOC 0500Z 279DEG 35KT 3236 8468

$$

2 follow-up statements

630 
WWUS52 KFFC 280517
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
117 AM EDT MON MAR 28 2011

GAC053-280526-
/O.CAN.KFFC.SV.W.0101.000000T0000Z-110328T0545Z/
CHATTAHOOCHEE GA-
117 AM EDT MON MAR 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHATTAHOOCHEE COUNTY
IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.

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.

LAT...LON 3226 8466 3245 8466 3244 8440 3241 8439
      3242 8436 3238 8435 3240 8432 3237 8432
      3237 8425 3230 8425 3229 8422 3218 8423
TIME...MOT...LOC 0516Z 277DEG 34KT 3234 8450

$$

GAC197-249-280545-
/O.CON.KFFC.SV.W.0101.000000T0000Z-110328T0545Z/
SCHLEY GA-MARION GA-
117 AM EDT MON MAR 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR CENTRAL MARION AND SCHLEY COUNTIES...

AT 113 AM 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
BUENA VISTA...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TAZEWELL...DOYLE...PUTNAM...CEDAR CREEK...WALLS CROSSING...CONCORD...
ELLAVILLE...MURRAYS CROSSROADS AND LA CROSSE.

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.

&&

LAT...LON 3226 8466 3245 8466 3244 8440 3241 8439
      3242 8436 3238 8435 3240 8432 3237 8432
      3237 8425 3230 8425 3229 8422 3218 8423
TIME...MOT...LOC 0516Z 277DEG 34KT 3234 8450

$$

060 
WWUS52 KFFC 280538
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
138 AM EDT MON MAR 28 2011

GAC197-280545-
/O.CAN.KFFC.SV.W.0101.000000T0000Z-110328T0545Z/
MARION GA-
138 AM EDT MON MAR 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MARION COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE 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.

LAT...LON 3222 8443 3223 8441 3230 8442 3230 8439
      3241 8439 3242 8436 3238 8435 3240 8432
      3237 8432 3237 8425 3230 8425 3229 8422
      3218 8423
TIME...MOT...LOC 0535Z 277DEG 34KT 3232 8429

$$

GAC249-280545-
/O.CON.KFFC.SV.W.0101.000000T0000Z-110328T0545Z/
SCHLEY GA-
138 AM EDT MON MAR 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR SCHLEY COUNTY...

AT 132 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS 
STORM WAS LOCATED 5 MILES NORTH NORTHEAST OF MURRAYS 
CROSSROADS...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LA
CROSSE.

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.

&&

LAT...LON 3222 8443 3223 8441 3230 8442 3230 8439
      3241 8439 3242 8436 3238 8435 3240 8432
      3237 8432 3237 8425 3230 8425 3229 8422
      3218 8423
TIME...MOT...LOC 0535Z 277DEG 34KT 3232 8429

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 12:22 AM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion, Muscogee	38 min
Mar 28, 12:27 AM EDT	Severe Thunderstorm Warning	FFC	Coweta, Fayette, Heard	33 min
Mar 28, 3:23 AM EDT	Severe Thunderstorm Warning	FFC	Cobb, DeKalb, Douglas, Fulton	37 min
Mar 28, 1:44 PM EDT	River Flood Warning	FFC	Clarke, Greene, Oconee	40 hr

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.