Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 271, NWS Atlanta, GA

July 6, 2002Hall County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 6, 2002, 6:40 PM EDT for Hall 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 6, 2002, 6:40 PM EDT (22:40 UTC)
Expired
Jul 6, 2002, 7:15 PM EDT
In force
35 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Hall County, GA

The radar

The Atlanta radar (KFFC), 143 km from the middle of the area, began a volume at 22:40 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, 10.7 hours before the alert went out and 139 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2002-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1211 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2002-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1211 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1565 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
18 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 062240
SVRATL
GAC139-062315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
638 PM EDT SAT JUL 6 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN HALL COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 715 PM EDT

* AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 7 MILES EAST OF CLERMONT NEAR ROGERS MILL...
  MOVING SOUTH AT 10 MPH.

* THIS STORM WILL AFFECT MAINLY RURAL AREAS EAST OF CLERMONT AND MAY
  EVENTUALLY AFFECT LULA.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA. EXCESSIVE LIGHTNING IS ALSO LIKELY WITH THIS STORM. 
MOVE INDOORS IF POSSIBLE. STAY AWAY FROM WINDOWS AND DOORS. AVOID 
USING TELEPHONES OR ELECTRICAL APPLIANCES.

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 3444 8362 3451 8367 3450 8378 3435 8377
          3428 8364 3439 8367

$$

RAB

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 4:31 PM EDTSevere Thunderstorm WarningFFCTelfair29 min
Jul 6, 4:34 PM EDTSevere Thunderstorm WarningFFCWebster26 min
Jul 6, 5:11 PM EDTSevere Thunderstorm WarningFFCWashington34 min
Jul 6, 5:23 PM EDTSevere Thunderstorm WarningFFCJohnson22 min
Jul 6, 5:27 PM EDTSevere Thunderstorm WarningFFCEmanuel33 min
Jul 6, 6:02 PM EDTSevere Thunderstorm WarningFFCToombs43 min
Jul 6, 6:06 PM EDTSevere Thunderstorm WarningFFCWhite24 min
Jul 6, 6:16 PM EDTSevere Thunderstorm WarningFFCJohnson24 min
Jul 6, 6:49 PM EDTSevere Thunderstorm WarningFFCJefferson41 min
Jul 6, 7:10 PM EDTSevere Thunderstorm WarningFFCHouston, Peach35 min
Jul 6, 7:24 PM EDTSevere Thunderstorm WarningFFCTelfair, Wheeler36 min
Jul 6, 7:45 PM EDTSevere Thunderstorm WarningFFCDooly30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002Every severe thunderstorm warning in 2002

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.