Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 310, NWS Atlanta, GA

June 10, 2009Troup County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 10, 2009, 4:39 PM EDT for Troup County, Georgia. It was in force for 51 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 10, 2009, 4:39 PM EDT (20:39 UTC)
Expired: Jun 10, 2009, 5:30 PM EDT
In force: 51 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Troup County, GA

The radar

The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 20:41 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 12:00Z, 8.7 hours before the alert went out and 62 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: 416 J/kg
Mixed-layer CIN: -201 J/kg
Mixed-layer LCL: 1237 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 86 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 102039
SVRFFC
GAC285-102130-
/O.NEW.KFFC.SV.W.0310.090610T2039Z-090610T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
439 PM EDT WED JUN 10 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 530 PM EDT

* AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  NORTHWEST OF LAGRANGE...MOVING EAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WARES
  CROSSROADS...HILLCREST AND CANNONVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

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 3318 8510 3313 8489 3295 8509 3308 8523
TIME...MOT...LOC 2039Z 289DEG 19KT 3312 8511

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 1:43 PM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Whitfield	27 min
Jun 10, 1:51 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Gordon, Walker, Whitfield	39 min
Jun 10, 2:05 PM EDT	Severe Thunderstorm Warning	FFC	Gordon, Murray, Whitfield	40 min
Jun 10, 2:24 PM EDT	Severe Thunderstorm Warning	FFC	Gordon	36 min
Jun 10, 2:42 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Gordon, Pickens	48 min
Jun 10, 3:02 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Paulding	43 min
Jun 10, 3:08 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	31 min
Jun 10, 3:58 PM EDT	Severe Thunderstorm Warning	FFC	Carroll	47 min
Jun 10, 4:25 PM EDT	Severe Thunderstorm Warning	FFC	Henry, Rockdale	50 min
Jun 10, 5:00 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Newton, Rockdale	45 min
Jun 10, 5:24 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Jasper, Newton	36 min
Jun 10, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Crawford, Houston, Peach	23 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.