Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 99, NWS Atlanta, GA

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

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 28, 2011, 12:22 AM EDT for Chattahoochee County, Marion County, Muscogee County, Georgia. It was in force for 38 min. 1 report 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
Mar 28, 2011, 12:22 AM EDT (04:22 UTC)
Expired
Mar 28, 2011, 1:00 AM EDT
In force
38 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Chattahoochee County, GA, Marion County, GA, Muscogee County, GA

What was reported inside it

TimeReportWhereRemark
Mar 28, 12:35 AM EDTHAIL 1Fort Benning/Lawson Arm, GAQUARTER-SIZED HAIL REPORTED BY FORT BENNING MILITARY POLICE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.4 hours before the alert went out and 116 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 00:00Z on 2011-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2011-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.1939587897117Sfc1 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
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.

322 
WUUS52 KFFC 280422
SVRFFC
GAC053-197-215-280500-
/O.NEW.KFFC.SV.W.0099.110328T0422Z-110328T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1222 AM EDT MON MAR 28 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHATTAHOOCHEE COUNTY IN WEST CENTRAL GEORGIA
  CENTRAL MARION COUNTY IN WEST CENTRAL GEORGIA
  SOUTHERN MUSCOGEE COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 100 AM EDT

* AT 1217 AM 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 10 MILES WEST
  OF COLUMBUS...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BIBB
  CITY...FORT BENNING/LAWSON ARMY AIR FIELD...NORTH FORT BENNING...
  CUSSETA AND BUENA VISTA.

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.

&&

LAT...LON 3231 8498 3232 8500 3234 8501 3237 8499
      3239 8499 3243 8498 3245 8500 3251 8501
      3252 8447 3223 8445
TIME...MOT...LOC 0422Z 276DEG 37KT 3242 8509

$$
1 follow-up statement
039 
WWUS52 KFFC 280454
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1254 AM EDT MON MAR 28 2011

GAC215-280504-
/O.CAN.KFFC.SV.W.0099.000000T0000Z-110328T0500Z/
MUSCOGEE GA-
1254 AM EDT MON MAR 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MUSCOGEE 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.

LAT...LON 3231 8498 3234 8501 3238 8499 3238 8494
      3242 8486 3241 8484 3242 8478 3250 8473
      3252 8471 3252 8447 3223 8445
TIME...MOT...LOC 0454Z 281DEG 33KT 3236 8477

$$

GAC053-197-280500-
/O.CON.KFFC.SV.W.0099.000000T0000Z-110328T0500Z/
MARION GA-CHATTAHOOCHEE GA-
1254 AM EDT MON MAR 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT
FOR CHATTAHOOCHEE AND CENTRAL MARION COUNTIES...

AT 1250 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
CUSSETA...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
EELBECK/WEST FORT BENNING...CHRISTOPHER...MARION ESTATES...OAKLAND...
ZELLOBEE...BRANTLEY...BUENA VISTA AND MANTA.

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.

&&

LAT...LON 3231 8498 3234 8501 3238 8499 3238 8494
      3242 8486 3241 8484 3242 8478 3250 8473
      3252 8471 3252 8447 3223 8445
TIME...MOT...LOC 0454Z 281DEG 33KT 3236 8477

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 12:27 AM EDTSevere Thunderstorm WarningFFCCoweta, Fayette, Heard33 min
Mar 28, 1:01 AM EDTSevere Thunderstorm WarningFFCChattahoochee, Marion, Schley44 min
Mar 28, 3:23 AM EDTSevere Thunderstorm WarningFFCCobb, DeKalb, Douglas, Fulton37 min
Mar 28, 1:44 PM EDTRiver Flood WarningFFCClarke, Greene, Oconee40 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.