Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 321, NWS Atlanta, GA

June 11, 2009Dodge County, Laurens County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 11, 2009, 8:14 PM EDT for Dodge County, Laurens County, Georgia. It was in force for 22 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: Jun 11, 2009, 8:14 PM EDT (00:14 UTC)
Expired: Jun 11, 2009, 8:36 PM EDT
In force: 22 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Dodge County, GA, Laurens County, GA

The radar

The Robins AFB radar (KJGX), 62 km from the middle of the area, began a volume at 00:14 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, 0.2 hours before the alert went out and 190 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: 1736 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1241 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 191 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.

000 
WUUS52 KFFC 120014
SVRFFC
GAC091-175-120100-
/O.NEW.KFFC.SV.W.0321.090612T0014Z-090612T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
814 PM EDT THU JUN 11 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL DODGE COUNTY IN CENTRAL GEORGIA
  SOUTH CENTRAL LAURENS COUNTY IN CENTRAL GEORGIA

* UNTIL 900 PM EDT

* AT 813 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 7 MILES
  NORTHWEST OF JAY BIRD SPRINGS...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AT 805 PM EDT THE PUBLIC REPORTED QUARTER SIZED HAIL AS THIS STORM 
MOVED THROUGH EASTMAN. IF YOU ARE IN THE PATH OF THE STORM...TAKE 
IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.

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 3217 8318 3225 8317 3228 8292 3214 8294
      3213 8296 3211 8295
TIME...MOT...LOC 0014Z 278DEG 12KT 3219 8311

$$

1 follow-up statement

000 
WWUS52 KFFC 120036
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
836 PM EDT THU JUN 11 2009

GAC091-175-120046-
/O.CAN.KFFC.SV.W.0321.000000T0000Z-090612T0100Z/
DODGE GA-LAURENS GA-
836 PM EDT THU JUN 11 2009

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL LAURENS AND EAST
CENTRAL DODGE COUNTIES IS CANCELLED...

THE THUNDERSTORM HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE 
SEVERE WEATHER. HOWEVER...STRONG GUSTY WINDS UP TO 45 MPH...HEAVY 
RAIN...AND SMALL HAIL ARE STILL POSSIBLE WITH THIS STORM.

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 3217 8318 3225 8317 3228 8292 3214 8294
      3213 8296 3211 8295
TIME...MOT...LOC 0036Z 278DEG 12KT 3218 8302

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 1:26 AM EDT	Severe Thunderstorm Warning	FFC	Washington	34 min
Jun 12, 6:10 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Morgan, Oconee, Oglethorpe, Walton	50 min
Jun 12, 7:10 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Greene, Hancock, Taliaferro, Warren	43 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2009 Every severe thunderstorm warning in 2009

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.