Alert archive / Georgia / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 378, NWS Atlanta, GA

July 22, 2003Forsyth County, Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 22, 2003, 1:11 PM EDT for Forsyth County, Gwinnett County, Georgia. It was in force for 49 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 22, 2003, 1:11 PM EDT (17:11 UTC)
Expired
Jul 22, 2003, 2:00 PM EDT
In force
49 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

Counties Forsyth County, GA, Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 88 km from the middle of the area, began a volume at 17:12 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.

IssuedProductOfficeLasted
Jul 22, 12:55 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.2 hours before the alert went out and 85 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 2003-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 491 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2003-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 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
491 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
-17 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.

853 
WUUS52 KFFC 221711
SVRATL
GAC117-135-221800-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
111 PM EDT TUE JUL 22 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 200 PM EDT

* AT 107 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER DULUTH...MOVING EAST AT 30 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BERKELEY
LAKE...BUFORD...CUMMING...DULUTH...LILBURN...REST HAVEN...SUGAR HILL
AND SUWANEE.

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 3408 8431 3386 8413 3407 8388 3430 8414

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 9:37 AM EDTFlash Flood WarningFFCNewton113 min
Jul 22, 9:53 AM EDTFlash Flood WarningFFCMorgan, Walton2 hr
Jul 22, 12:08 PM EDTSevere Thunderstorm WarningFFCChattooga, Walker37 min
Jul 22, 12:11 PM EDTSevere Thunderstorm WarningFFCChattooga, Walker34 min
Jul 22, 12:34 PM EDTSevere Thunderstorm WarningFFCFloyd, Gordon26 min
Jul 22, 12:51 PM EDTSevere Thunderstorm WarningFFCBartow, Polk24 min
Jul 22, 1:03 PM EDTSevere Thunderstorm WarningFFCFulton27 min
Jul 22, 1:26 PM EDTSevere Thunderstorm WarningFFCCherokee34 min
Jul 22, 1:28 PM EDTSevere Thunderstorm WarningFFCHaralson32 min
Jul 22, 1:34 PM EDTSevere Thunderstorm WarningFFCCarroll, Cobb, Paulding26 min
Jul 22, 1:37 PM EDTSevere Thunderstorm WarningFFCDouglas23 min
Jul 22, 1:38 PM EDTSevere Thunderstorm WarningFFCDawson, Lumpkin52 min
Jul 22, 1:40 PM EDTSevere Thunderstorm WarningFFCFulton35 min
Jul 22, 1:45 PM EDTSevere Thunderstorm WarningFFCBarrow, Hall, Jackson45 min
Jul 22, 1:50 PM EDTSevere Thunderstorm WarningFFCClayton, DeKalb, Henry, Rockdale55 min
Jul 22, 2:01 PM EDTSevere Thunderstorm WarningFFCTowns, Union, White44 min
Jul 22, 2:01 PM EDTSevere Thunderstorm WarningFFCCarroll, Coweta59 min
Jul 22, 2:05 PM EDTSevere Thunderstorm WarningFFCGwinnett40 min
Jul 22, 2:16 PM EDTSevere Thunderstorm WarningFFCNewton, Walton59 min
Jul 22, 2:19 PM EDTSevere Thunderstorm WarningFFCBanks, Clarke, Jackson, Madison56 min
Jul 22, 2:26 PM EDTSevere Thunderstorm WarningFFCFayette54 min
Jul 22, 2:29 PM EDTSevere Thunderstorm WarningFFCMorgan31 min
Jul 22, 2:40 PM EDTSevere Thunderstorm WarningFFCOconee50 min
Jul 22, 2:57 PM EDTSevere Thunderstorm WarningFFCMorgan48 min
Jul 22, 3:04 PM EDTSevere Thunderstorm WarningFFCGreene, Oglethorpe56 min
Jul 22, 3:09 PM EDTSevere Thunderstorm WarningFFCHouston51 min
Jul 22, 3:24 PM EDTSevere Thunderstorm WarningFFCTwiggs51 min
Jul 22, 3:27 PM EDTSevere Thunderstorm WarningFFCMacon48 min
Jul 22, 3:33 PM EDTSevere Thunderstorm WarningFFCHarris27 min
Jul 22, 4:17 PM EDTFlash Flood WarningFFCJones118 min
Jul 22, 4:29 PM EDTSevere Thunderstorm WarningFFCLaurens31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2003Every 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.