Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 522, NWS Atlanta, GA

May 29, 1998Coweta County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 29, 1998, 4:07 PM EDT for Coweta County, Georgia. It was in force for 33 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 29, 1998, 4:07 PM EDT (20:07 UTC)
Expired
May 29, 1998, 4:40 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Coweta County, GA

The radar

The Atlanta radar (KFFC), 18 km from the middle of the area, began a volume at 20:09 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.

What was reported inside it

TimeReportWhereRemark
May 29, 4:20 PM EDTHail 0.75Handy, GA

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 12:00Z, 8.1 hours before the alert went out and 24 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 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1144 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 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1144 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
904 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
2 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.

761 
WUUS1 KATL 292005 RRA
SVRATL
GAC077-292040-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
407 PM EDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 440 PM EDT

* AT 405 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  5 MILES SOUTHWEST OF SARGENT MOVING EAST AT 10 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   STEPHENS CROSSROAD          AROUND 420 PM EDT
   SARGENT                     AROUND 425 PM EDT
   NEWNAN                      AROUND 440 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.

17

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 12:19 PM EDTSevere Thunderstorm WarningFFCHarris31 min
May 29, 2:28 PM EDTSevere Thunderstorm WarningFFCTalbot, Taylor, Upson32 min
May 29, 4:13 PM EDTSevere Thunderstorm WarningFFCHarris32 min
May 29, 5:19 PM EDTSevere Thunderstorm WarningFFCFulton36 min
May 29, 5:43 PM EDTSevere Thunderstorm WarningFFCJefferson32 min
May 29, 6:28 PM EDTSevere Thunderstorm WarningFFCDeKalb, Rockdale32 min
May 29, 6:49 PM EDTSevere Thunderstorm WarningFFCNewton36 min
May 29, 6:56 PM EDTSevere Thunderstorm WarningFFCDooly, Pulaski34 min
May 29, 7:40 PM EDTSevere Thunderstorm WarningFFCPulaski35 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; radar from the NEXRAD Level II archive.