Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 786, NWS Atlanta, GA

June 30, 1998Newton County, Rockdale County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 30, 1998, 9:11 PM EDT for Newton County, Rockdale County, Georgia. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 30, 1998, 9:11 PM EDT (01:11 UTC)
Expired
Jun 30, 1998, 9:45 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Newton County, GA, Rockdale County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.2 hours before the alert went out and 58 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 1998-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1323 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 1998-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
1323 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1608 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
113 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 010111 RRA
SVRATL
GAC217-247-010145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
911 PM EDT TUE JUN 30 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NEWTON COUNTY IN NORTHEASTERN GEORGIA
  ROCKDALE COUNTY IN NORTHWESTERN GEORGIA

* UNTIL 945 PM EDT

* AT 909 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  9 MILES WEST OF PORTERDALE MOVING SOUTHEAST AT 55 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   STEWART                     AROUND 925 PM EDT



WHEN THUNDERSTORMS ARE OCCURRING...LIGHTNING POSES A SERIOUS
DANGER. STAY INDOORS AND AWAY FROM WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY. IF BOATING OR
SWIMMING...GET TO LAND QUICKLY AND FIND SHELTER. IF IN THE OPEN
FIND A LOW SPOT AWAY FROM TREES...FENCES...AND POLES. 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.

PAH/TSM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:15 PM EDTSevere Thunderstorm WarningFFCGwinnett35 min
Jun 30, 8:24 PM EDTSevere Thunderstorm WarningFFCDouglas36 min
Jun 30, 8:46 PM EDTSevere Thunderstorm WarningFFCFulton34 min
Jun 30, 8:57 PM EDTSevere Thunderstorm WarningFFCClayton33 min
Jun 30, 9:04 PM EDTSevere Thunderstorm WarningFFCDeKalb36 min
Jun 30, 9:14 PM EDTSevere Thunderstorm WarningFFCHenry36 min
Jun 30, 9:29 PM EDTSevere Thunderstorm WarningFFCButts, Jasper46 min
Jun 30, 10:26 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Gordon34 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; the sounding from the Mesonet's radiosonde archive.