Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 901, NWS Atlanta, GA

July 31, 1998Bibb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 31, 1998, 3:59 PM EDT for Bibb County, Georgia. It was in force for 36 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
Jul 31, 1998, 3:59 PM EDT (19:59 UTC)
Expired
Jul 31, 1998, 4:35 PM EDT
In force
36 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.0 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 12:00Z on 1998-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 659 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 12:00Z on 1998-07-31The 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
659 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
1204 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
44 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.

211 
WUUS1 KATL 312000 RRA
SVRATL
GAC021-312035-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
359 PM EDT FRI JUL 31 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BIBB COUNTY IN CENTRAL GEORGIA

* UNTIL 435 PM EDT

* AT 358 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  11 MILES WEST OF MACON MOVING SOUTHEAST AT 10 MPH.




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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 1:20 PM EDTSevere Thunderstorm WarningFFCMeriwether, Troup50 min
Jul 31, 4:09 PM EDTSevere Thunderstorm WarningFFCWebster36 min
Jul 31, 4:19 PM EDTSevere Thunderstorm WarningFFCSumter36 min
Jul 31, 4:35 PM EDTSevere Thunderstorm WarningFFCCrisp, Dooly35 min
Jul 31, 5:15 PM EDTSevere Thunderstorm WarningFFCTelfair, Wheeler35 min
Jul 31, 5:25 PM EDTSevere Thunderstorm WarningFFCToombs, Treutlen35 min
Jul 31, 6:01 PM EDTSevere Thunderstorm WarningFFCHeard34 min
Jul 31, 6:26 PM EDTSevere Thunderstorm WarningFFCTroup34 min
Jul 31, 6:59 PM EDTSevere Thunderstorm WarningFFCTroup31 min
Jul 31, 7:13 PM EDTSevere Thunderstorm WarningFFCCoweta32 min
Jul 31, 7:24 PM EDTSevere Thunderstorm WarningFFCFayette31 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.