Alert archive / Georgia / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 310, NWS Atlanta, GA

July 10, 2003Oconee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 10, 2003, 11:55 AM EDT for Oconee County, Georgia. It was in force for 35 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: Jul 10, 2003, 11:55 AM EDT (15:55 UTC)
Expired: Jul 10, 2003, 12:30 PM EDT
In force: 35 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County Oconee County, GA

The radar

The Atlanta radar (KFFC), 119 km from the middle of the area, began a volume at 15:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 10, 11:20 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.9 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: 1832 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 694 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS52 KFFC 101555
SVRATL
GAC219-101630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1155 AM EDT THU JUL 10 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OCONEE COUNTY IN NORTHEAST GEORGIA

* UNTIL 1230 PM EDT

* AT 1150 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF WATKINSVILLE...MOVING SOUTHEAST
  AT 20 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BISHOP AND
WATKINSVILLE.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE
EXPECTED IN THE WARNED 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 3392 8347 3385 8353 3373 8336 3384 8329

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 2:36 PM EDT	Flash Flood Warning	FFC	Dawson, Pickens	114 min
Jul 10, 4:29 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Fulton	31 min
Jul 10, 5:05 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	25 min
Jul 10, 5:15 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb	45 min
Jul 10, 5:18 PM EDT	Flash Flood Warning	FFC	Cobb, Fulton	87 min
Jul 10, 5:38 PM EDT	Flash Flood Warning	FFC	DeKalb	97 min
Jul 10, 6:24 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Coweta, Douglas, Fulton	36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2003 Every severe thunderstorm warning in 2003

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.