Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 29, NWS Atlanta, GA

February 17, 1998Lumpkin County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 17, 1998, 8:35 AM EST for Lumpkin County, Georgia. It was in force for 25 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
Feb 17, 1998, 8:35 AM EST (13:35 UTC)
Expired
Feb 17, 1998, 9:00 AM EST
In force
25 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Lumpkin County, GA

What was reported inside it

TimeReportWhereRemark
Feb 17, 8:45 AM ESTHail 0.75Dahlonega, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 17, 6:15 AM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 1.6 hours before the alert went out and 141 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 1998-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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 1998-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 626 square meters per square second.1939587897117Sfc1 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
92 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
626 m²/s²
0-3 km storm-relative helicity
581 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

463 
WUUS1 KATL 171336 RRA
SVRATL
GAC187-171400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
835 AM EST TUE FEB 17 1998
 
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST GEORGIA
 
   ...LUMPKIN COUNTY
 
AT 835 AM EST DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM ON
THE DAWSON-LUMPKIN COUNTIES LINE 10 MILES NORTH OF DAWSONVILLE MOVING
EAST AT 45 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 17, 5:29 AM ESTSevere Thunderstorm WarningFFCHeard31 min
Feb 17, 5:46 AM ESTSevere Thunderstorm WarningFFCCarroll29 min
Feb 17, 6:17 AM ESTSevere Thunderstorm WarningFFCPolk58 min
Feb 17, 7:46 AM ESTSevere Thunderstorm WarningFFCCobb, Fulton44 min
Feb 17, 8:17 AM ESTSevere Thunderstorm WarningFFCDeKalb28 min
Feb 17, 8:27 AM ESTSevere Thunderstorm WarningFFCClayton, Henry, Rockdale33 min
Feb 17, 8:27 AM ESTSevere Thunderstorm WarningFFCGwinnett33 min
Feb 17, 8:42 AM ESTSevere Thunderstorm WarningFFCHall33 min
Feb 17, 8:44 AM ESTSevere Thunderstorm WarningFFCSpalding31 min
Feb 17, 8:50 AM ESTSevere Thunderstorm WarningFFCBanks, Jackson25 min
Feb 17, 8:50 AM ESTSevere Thunderstorm WarningFFCBarrow25 min
Feb 17, 8:59 AM ESTSevere Thunderstorm WarningFFCNewton, Rockdale31 min
Feb 17, 9:08 AM ESTSevere Thunderstorm WarningFFCWalton37 min
Feb 17, 10:07 AM ESTSevere Thunderstorm WarningFFCOglethorpe38 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.