Alert archive / Georgia / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 43, NWS Atlanta, GA

March 6, 2003Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 6, 2003, 5:00 AM EST for Gwinnett County, Georgia. It was in force for 30 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
Mar 6, 2003, 5:00 AM EST (10:00 UTC)
Expired
Mar 6, 2003, 5:30 AM EST
In force
30 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 93 km from the middle of the area, began a volume at 10:02 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
Mar 5, 11:35 PM ESTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.0 hours before the alert went out and 89 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 00:00Z on 2003-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 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 00:00Z on 2003-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.1939587897117Sfc1 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
68 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
717 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

937 
WUUS52 KFFC 061000
SVRATL
GAC135-061030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
500 AM EST THU MAR 6 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 530 AM EST

* AT 457 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER DACULA...MOVING EAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...BUFORD...
DACULA...LAWRENCEVILLE...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.

THIS STORM CONTAINS VERY HEAVY RAIN. EXPECT 1 TO 2 INCHES OF RAIN IN
LESS THAN AN HOUR. THIS CAN CAUSE BRIEF FLOODING OF ROADS.

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 3416 8406 3399 8416 3388 8389 3410 8384

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 8:25 PM ESTSevere Thunderstorm WarningFFCJasper, Morgan, Newton35 min
Mar 5, 8:33 PM ESTSevere Thunderstorm WarningFFCHaralson, Polk27 min
Mar 5, 9:48 PM ESTSevere Thunderstorm WarningFFCBanks27 min
Mar 5, 9:58 PM ESTSevere Thunderstorm WarningFFCHeard32 min
Mar 5, 10:04 PM ESTSevere Thunderstorm WarningFFCTroup26 min
Mar 5, 10:09 PM ESTSevere Thunderstorm WarningFFCCoweta, Douglas, Fulton36 min
Mar 5, 10:23 PM ESTSevere Thunderstorm WarningFFCTroup37 min
Mar 5, 10:31 PM ESTSevere Thunderstorm WarningFFCMeriwether44 min
Mar 5, 10:32 PM ESTSevere Thunderstorm WarningFFCClayton, DeKalb, Fayette28 min
Mar 5, 10:34 PM ESTTornado WarningFFCMeriwether, Troup41 min
Mar 5, 10:55 PM ESTSevere Thunderstorm WarningFFCPike, Spalding35 min
Mar 5, 11:08 PM ESTSevere Thunderstorm WarningFFCNewton, Rockdale22 min
Mar 5, 11:15 PM ESTSevere Thunderstorm WarningFFCButts30 min
Mar 5, 11:33 PM ESTSevere Thunderstorm WarningFFCJasper42 min
Mar 5, 11:35 PM ESTSevere Thunderstorm WarningFFCMorgan25 min
Mar 5, 11:56 PM ESTSevere Thunderstorm WarningFFCGreene34 min
Mar 6, 3:10 AM ESTFlash Flood WarningFFCFloyd3 hr
Mar 6, 4:05 AM ESTFlash Flood WarningFFCBartow3 hr
Mar 6, 4:30 AM ESTFlash Flood WarningFFCCherokee, Forsyth3 hr
Mar 6, 4:55 AM ESTFlash Flood WarningFFCHall3 hr
Mar 6, 9:10 AM ESTFlash Flood WarningFFCPolk4 hr
Mar 6, 10:14 AM ESTFlash Flood WarningFFCForsyth4 hr
Mar 6, 4:39 PM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler36 min
Mar 6, 4:56 PM ESTSevere Thunderstorm WarningFFCMontgomery19 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.