Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 918, NWS Atlanta, GA

August 8, 1998Cherokee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 8, 1998, 9:33 PM EDT for Cherokee County, Georgia. It was in force for 47 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
Aug 8, 1998, 9:33 PM EDT (01:33 UTC)
Expired
Aug 8, 1998, 10:20 PM EDT
In force
47 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 98 km from the middle of the area, began a volume at 01:37 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.6 hours before the alert went out and 97 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 1998-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1698 joules per kilogram.LCLEL10008507005003002001001 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 1998-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
1698 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1057 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
127 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.

369 
WUUS1 KATL 090132 RRA
SVRATL
GAC057-090220-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
933 PM EDT SAT AUG 8 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 1020 PM EDT

* AT 932 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  9 MILES SOUTHWEST OF HOLLY SPRINGS MOVING NORTH AT 15 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   LEBANON                     AROUND 945 PM EDT
   HOLLY SPRINGS               AROUND 955 PM EDT
   CHEROKEE                    AROUND 955 PM EDT
   CANTON                      AROUND 1010 PM EDT
   KEITHSBURG                  AROUND 1015 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.

DH/MR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 8:53 PM EDTSevere Thunderstorm WarningFFCCarroll32 min
Aug 8, 9:06 PM EDTSevere Thunderstorm WarningFFCCobb49 min
Aug 8, 9:24 PM EDTSevere Thunderstorm WarningFFCPaulding51 min
Aug 8, 9:45 PM EDTSevere Thunderstorm WarningFFCBartow50 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; radar from the NEXRAD Level II archive.