Alert archive / Georgia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 261, NWS Atlanta, GA

July 2, 2001Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 2, 2001, 8:00 PM EDT for Gwinnett County, Georgia. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Jul 2, 2001, 8:00 PM EDT (00:00 UTC)
Expired: Jul 2, 2001, 8:30 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Gwinnett County, GA

What was reported inside it

Time	Report	Where	Remark
Jul 2, 8:15 PM EDT	Hail 0.75	Lawrenceville, GA	The public reported dime size hail.
Jul 2, 8:15 PM EDT	Thunderstorm Wind	Lawrenceville, GA	The public reported that four trees were blown down at a private residence. Some of the guttering on the house was damaged as the trees fell.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.0 hours before the alert went out and 80 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: 583 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 995 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 6 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 030000
SVRATL

GAC135-030030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
800 PM EDT MON JUL 2 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GWINNETT COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 830 PM EDT

* AT 758 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER LAWRENCEVILLE...MOVING EAST AT 15 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...SUWANEE...
LAWRENCEVILLE...GRAYSON AND DACULA.

HAIL TO THE SIZE OF DIMES 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 3398 8418 3383 8408 3395 8382 3414 8395

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 9:58 PM EDT	Severe Thunderstorm Warning	FFC	Madison	32 min
Jul 3, 3:42 PM EDT	Severe Thunderstorm Warning	FFC	Jasper	33 min
Jul 3, 3:51 PM EDT	Severe Thunderstorm Warning	FFC	Walker	24 min
Jul 3, 4:25 PM EDT	Severe Thunderstorm Warning	FFC	Gordon	35 min
Jul 3, 4:45 PM EDT	Severe Thunderstorm Warning	FFC	Pickens	30 min
Jul 3, 6:38 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cobb	37 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.