Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 279, NWS Atlanta, GA

April 23, 1998Morgan County, Walton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 23, 1998, 4:01 PM EDT for Morgan County, Walton County, Georgia. It was in force for 49 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
Apr 23, 1998, 4:01 PM EDT (20:01 UTC)
Expired
Apr 23, 1998, 4:50 PM EDT
In force
49 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Morgan County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 95 km from the middle of the area, began a volume at 20:00 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
Apr 23, 4:08 PM EDTHail 1Social Circle, GAThe public reported dime to quarter size hail. It covered the ground in some places.

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

Birmingham, AL (KBMX), launched 12:00Z, 8.0 hours before the alert went out and 299 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, Birmingham, AL at 12:00Z on 1998-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Birmingham, AL at 12:00Z on 1998-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
66 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 232001 RRA
SVRATL
GAC211-297-232050-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
401 PM EDT THU APR 23 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MORGAN COUNTY IN NORTHEASTERN GEORGIA
  SOUTHERN WALTON COUNTY IN NORTHEASTERN GEORGIA

* UNTIL 450 PM EDT

* SOME LOCATIONS IN THE PATH OF THIS STORM ARE...
   RUTLEDGE                    AROUND 405 PM EDT
   CENTENNIAL                  AROUND 415 PM EDT

* AT 359 PM EDT...  5 MILES NORTHWEST OF RUTLEDGE... A SEVERE
  THUNDERSTORM WAS INDICATED BY DOPPLER RADAR... MOVING SOUTHEAST
  10 MPH.


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 STRUHCTURES OR TREES...OR HAIL THE SIZE
OF DIMES OR LARGER...PLEASE REPORT IT TO THE NATIONAL WEATHER
SERVICE BY CALLING 770-486-8535.

WRS/KDF

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 3:52 PM EDTSevere Thunderstorm WarningFFCBibb, Twiggs33 min
Apr 23, 5:28 PM EDTSevere Thunderstorm WarningFFCBibb, Twiggs32 min
Apr 23, 5:32 PM EDTSevere Thunderstorm WarningFFCBaldwin, Jones48 min
Apr 23, 5:39 PM EDTSevere Thunderstorm WarningFFCPeach36 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.