Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 114, NWS Atlanta, GA

May 6, 1999Douglas County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 6, 1999, 7:49 AM EDT for Douglas County, Georgia. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 6, 1999, 7:49 AM EDT (11:49 UTC)
Expired
May 6, 1999, 8:25 AM EDT
In force
36 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Douglas County, GA

What was reported inside it

TimeReportWhereRemark
May 6, 8:02 AM EDTHail 1.75Bill Arp, GAThere were numerous public reports of hail ranging from dime size to golf ball size. One report said hail covered the porch.

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 watch it was issued in

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

IssuedProductOfficeLasted
May 6, 6:45 AM EDTTornado WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.8 hours before the alert went out and 44 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 1999-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 645 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 1999-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.193958Sfc1 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
645 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
1.0
Supercell composite
9.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 061149 RRA
SVRATL
GAC097-061225-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
749 AM EDT THU MAY 6 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOUGLAS COUNTY IN NORTHWESTERN GEORGIA

* UNTIL 825 AM EDT

* AT 749 AM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  10 MILES SOUTHWEST OF DOUGLASVILLE... MOVING NORTHEAST AT
  50 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   CHAPEL HILL                 AROUND 755 AM EDT
   DOUGLASVILLE                AROUND 800 AM EDT
   MIDWAY                      AROUND 800 AM EDT
   BEULAH                      AROUND 800 AM EDT
   LITHIA SPRINGS              AROUND 805 AM EDT

A TORNADO WATCH IS ALSO IN EFFECT IN OR NEAR THE WARNED AREA.
SEVERE THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES WITH LITTLE OR
NO ADVANCE WARNING. BE ALERT...BUT REMAIN CALM. IF YOjU SEE DAMAGE
OR LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133
AT EXTENSION 2 0 4.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 6, 6:05 AM EDT, 1 hour 44 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-061115-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
605 AM EDT THU MAY 6 1999

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTH AND CENTRAL
GEORGIA TODAY AND TONIGHT.

MOIST UNSTABLE AIR ALREADY OVER NORTH AND CENTRAL GEORGIA WILL BE
MAINTAINED BY LOW LEVEL SOUTHERLY WINDS TODAY. MEANWHILE...SURFACE
HEATING TODAY...AND THE WINDS ALOFT...WILL PROMOTE UPWARD MOTION AND
RAPID DEVELOPMENT OF THUNDERSTORMS. A FEW THUNDERSTORMS COULD BECOME
SEVERE...WITH STRONG WINDS AND LARGE HAIL THE PRIMARY THREAT.

SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT TO
DEVELOPING WEATHER TODAY IN CASE ACTIVATION BECOMES NECESSARY.

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 11:47 PM EDTSevere Thunderstorm WarningFFCCoweta, Fayette33 min
May 5, 11:51 PM EDTSevere Thunderstorm WarningFFCHall49 min
May 6, 12:09 AM EDTSevere Thunderstorm WarningFFCDeKalb, Gwinnett36 min
May 6, 12:44 AM EDTSevere Thunderstorm WarningFFCDade31 min
May 6, 1:15 AM EDTSevere Thunderstorm WarningFFCDade, Walker50 min
May 6, 2:15 AM EDTSevere Thunderstorm WarningFFCWalker35 min
May 6, 2:20 AM EDTSevere Thunderstorm WarningFFCCatoosa, Whitfield35 min
May 6, 3:10 AM EDTSevere Thunderstorm WarningFFCMurray35 min
May 6, 3:29 AM EDTSevere Thunderstorm WarningFFCFannin, Gilmer46 min
May 6, 4:13 AM EDTSevere Thunderstorm WarningFFCFannin, Union32 min
May 6, 4:13 AM EDTSevere Thunderstorm WarningFFCGilmer32 min
May 6, 7:00 AM EDTSevere Thunderstorm WarningFFCPaulding35 min
May 6, 7:06 AM EDTSevere Thunderstorm WarningFFCCarroll, Haralson34 min
May 6, 7:36 AM EDTSevere Thunderstorm WarningFFCPaulding14 min
May 6, 7:38 AM EDTSevere Thunderstorm WarningFFCCarroll32 min
May 6, 7:44 AM EDTSevere Thunderstorm WarningFFCCobb36 min
May 6, 8:20 AM EDTSevere Thunderstorm WarningFFCFulton45 min
May 6, 8:42 AM EDTSevere Thunderstorm WarningFFCCobb28 min
May 6, 8:44 AM EDTSevere Thunderstorm WarningFFCDeKalb36 min
May 6, 8:55 AM EDTSevere Thunderstorm WarningFFCGwinnett45 min
May 6, 9:04 AM EDTTornado WarningFFCGwinnett31 min
May 6, 9:26 AM EDTSevere Thunderstorm WarningFFCBarrow34 min
May 6, 9:29 AM EDTSevere Thunderstorm WarningFFCCoweta36 min
May 6, 9:42 AM EDTSevere Thunderstorm WarningFFCHeard, Troup33 min
May 6, 11:06 AM EDTSevere Thunderstorm WarningFFCHarris34 min
May 6, 11:29 AM EDTSevere Thunderstorm WarningFFCTalbot31 min
May 6, 1:19 PM EDTSevere Thunderstorm WarningFFCTaliaferro31 min
May 6, 1:37 PM EDTSevere Thunderstorm WarningFFCWarren, Wilkes28 min
May 6, 2:59 PM EDTSevere Thunderstorm WarningFFCCrisp36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999

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.