Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 821, NWS Atlanta, GA

July 19, 1998Cobb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 19, 1998, 8:05 PM EDT for Cobb County, Georgia. It was in force for 50 min. 2 reports 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
Jul 19, 1998, 8:05 PM EDT (00:05 UTC)
Expired
Jul 19, 1998, 8:55 PM EDT
In force
50 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Cobb County, GA

What was reported inside it

TimeReportWhereRemark
Jul 19, 8:10 PM EDTHail 0.88Acworth, GA
Jul 19, 8:10 PM EDTThunderstorm WindAcworth, GASeveral public reports indicated dime to nickel size hail fell. At least a couple of homes sustained roof and chimney damage from falling trees.

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, 0.1 hours before the alert went out and 64 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 1998-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 746 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 1998-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
746 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
2144 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
33 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 
TTAA00 KATL 200006
SVRATL
GAC067-200055-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
805 PM EDT SUN JUL 19 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 855 PM EDT

* AT 802 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  7 MILES NORTHEAST OF ACWORTH MOVING SOUTH AT 10 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   ACWORTH                     AROUND 830 PM EDT
   KENNESAW                    AROUND 840 PM EDT

DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE
AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. BOATERS...GOLFERS...
AND OTHERS INVOLVED IN OUTSIDE ACTIVITIES SHOULD SEEK SHELTER
IMMEDIATELY. IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR
TREES...OR HAIL THE SIZE OF DIMES OR LARGER...PLEASE REPORT IT TO
THE NATIONAL WEATHER SERVICE BY CALLING 770-486-8535.

KDF/TH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 8:38 PM EDTSevere Thunderstorm WarningFFCHall32 min
Jul 19, 8:45 PM EDTSevere Thunderstorm WarningFFCWilkinson35 min
Jul 19, 8:56 PM EDTSevere Thunderstorm WarningFFCDeKalb, Henry34 min
Jul 19, 8:58 PM EDTSevere Thunderstorm WarningFFCMadison32 min
Jul 19, 9:28 PM EDTSevere Thunderstorm WarningFFCClayton, DeKalb, Henry32 min
Jul 19, 9:32 PM EDTSevere Thunderstorm WarningFFCMonroe33 min
Jul 19, 9:49 PM EDTSevere Thunderstorm WarningFFCHouston36 min
Jul 19, 9:59 PM EDTSevere Thunderstorm WarningFFCClarke, Jackson36 min
Jul 19, 10:02 PM EDTSevere Thunderstorm WarningFFCClayton33 min
Jul 19, 10:03 PM EDTSevere Thunderstorm WarningFFCMonroe37 min
Jul 19, 10:10 PM EDTSevere Thunderstorm WarningFFCFayette, Fulton35 min
Jul 19, 10:17 PM EDTSevere Thunderstorm WarningFFCPeach33 min
Jul 19, 10:27 PM EDTSevere Thunderstorm WarningFFCLamar33 min
Jul 19, 10:55 PM EDTSevere Thunderstorm WarningFFCSpalding35 min
Jul 19, 11:12 PM EDTSevere Thunderstorm WarningFFCMorgan33 min
Jul 20, 12:12 AM EDTSevere Thunderstorm WarningFFCClayton, Fayette33 min
Jul 20, 12:51 AM EDTSevere Thunderstorm WarningFFCFulton34 min
Jul 20, 1:11 AM EDTSevere Thunderstorm WarningFFCCobb34 min
Jul 20, 1:56 AM EDTSevere Thunderstorm WarningFFCCarroll, Fulton34 min
Jul 20, 2:39 PM EDTSevere Thunderstorm WarningFFCDawson36 min
Jul 20, 2:50 PM EDTSevere Thunderstorm WarningFFCHall35 min
Jul 20, 2:57 PM EDTSevere Thunderstorm WarningFFCDade33 min
Jul 20, 3:07 PM EDTSevere Thunderstorm WarningFFCCherokee, Forsyth33 min
Jul 20, 3:10 PM EDTSevere Thunderstorm WarningFFCBanks35 min
Jul 20, 3:38 PM EDTSevere Thunderstorm WarningFFCBleckley32 min
Jul 20, 4:13 PM EDTSevere Thunderstorm WarningFFCDodge32 min
Jul 20, 4:26 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas34 min
Jul 20, 4:42 PM EDTSevere Thunderstorm WarningFFCGwinnett33 min
Jul 20, 4:46 PM EDTSevere Thunderstorm WarningFFCLaurens34 min
Jul 20, 4:55 PM EDTSevere Thunderstorm WarningFFCHancock35 min
Jul 20, 4:57 PM EDTSevere Thunderstorm WarningFFCHarris33 min
Jul 20, 5:07 PM EDTSevere Thunderstorm WarningFFCCarroll, Douglas33 min
Jul 20, 5:14 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton36 min
Jul 20, 5:15 PM EDTSevere Thunderstorm WarningFFCLamar, Monroe35 min
Jul 20, 5:20 PM EDTSevere Thunderstorm WarningFFCPutnam35 min
Jul 20, 5:45 PM EDTSevere Thunderstorm WarningFFCBaldwin35 min
Jul 20, 5:53 PM EDTSevere Thunderstorm WarningFFCLamar, Pike32 min
Jul 20, 5:59 PM EDTSevere Thunderstorm WarningFFCWashington36 min
Jul 20, 6:16 PM EDTSevere Thunderstorm WarningFFCMorgan, Putnam34 min
Jul 20, 6:18 PM EDTSevere Thunderstorm WarningFFCHeard37 min
Jul 20, 6:27 PM EDTSevere Thunderstorm WarningFFCJasper, Newton33 min
Jul 20, 6:36 PM EDTSevere Thunderstorm WarningFFCMacon, Peach34 min
Jul 20, 6:44 PM EDTSevere Thunderstorm WarningFFCCoweta36 min
Jul 20, 6:45 PM EDTSevere Thunderstorm WarningFFCFayette35 min
Jul 20, 7:01 PM EDTSevere Thunderstorm WarningFFCJasper34 min
Jul 20, 7:36 PM EDTSevere Thunderstorm WarningFFCTaylor34 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998Every severe thunderstorm warning in 1998

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.