Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 140, NWS Atlanta, GA

June 8, 2007Walton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 8, 2007, 5:04 PM EDT for Walton County, Georgia. It was in force for 26 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 8, 2007, 5:04 PM EDT (21:04 UTC)
Expired: Jun 8, 2007, 5:30 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Walton County, GA

The radar

The Atlanta radar (KFFC), 97 km from the middle of the area, began a volume at 21:06 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, 9.1 hours before the alert went out and 91 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: 476 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 766 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -78 m²/s²
0-3 km storm-relative helicity: -46 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 082105
SVRFFC
GAC297-082130-
/O.NEW.KFFC.SV.W.0140.070608T2104Z-070608T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
504 PM EDT FRI JUN 8 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WALTON COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 530 PM EDT

* AT 502 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL.  THIS
  STORM WAS LOCATED NEAR MOUNT VERNON...MOVING EAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT THE NORTHERN PART OF THE COUNTY
  FROM GOOD HOPE TO CAMPTON.

IN ADDITION TO LARGE HAIL...FREQUENT 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 3391 8375 3384 8378 3378 8368 3385 8357

$$


19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 1:45 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	30 min
Jun 8, 3:05 PM EDT	Severe Thunderstorm Warning	FFC	Polk	25 min
Jun 8, 4:17 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	28 min
Jun 8, 4:22 PM EDT	Severe Thunderstorm Warning	FFC	Coweta	38 min
Jun 8, 4:30 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	45 min
Jun 8, 4:39 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	36 min
Jun 8, 4:55 PM EDT	Severe Thunderstorm Warning	FFC	Clayton	35 min
Jun 8, 5:29 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	46 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007 Every severe thunderstorm warning in 2007

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.