Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 499, NWS Atlanta, GA

May 10, 1998Forsyth County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 10, 1998, 12:51 AM EDT for Forsyth County, Georgia. It was in force for 34 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 10, 1998, 12:51 AM EDT (04:51 UTC)
Expired
May 10, 1998, 1:25 AM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Forsyth County, GA

What was reported inside it

TimeReportWhereRemark
May 10, 1:10 AM EDTHail 0.75Cumming, 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
May 10, 12:30 AM EDTTornado WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.9 hours before the alert went out and 101 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 1998-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 37 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 00:00Z on 1998-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 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
37 J/kg
Mixed-layer CIN
-470 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
145 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 100451 RRA
SVRATL
GAC089-117-135-100525-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1251 AM EDT SUN MAY 10 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

SEVERE THUNDERSTORM WARNING FOR...
NORTHERN DEKALB COUNTY...FORSYTH COUNTY...WESTERN GWINNETT
COUNTY...ALL IN NORTHWESTERN GEORGIA

UNTIL 125 AM EDT

AT 1248 AM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
RADAR  6 MILES WEST OF DUNWOODY MOVING EAST AT 50 MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   DUNWOODY                    AROUND 1250 AM EDT
   CHAMBLEE                    AROUND 1255 AM EDT
   NORCROSS                    AROUND 100 AM EDT
   CUMMING                     AROUND 110 AM EDT
   LAWRENCEVILLE               AROUND 115 AM EDT


A TORNADO WATCH IS ALSO IN EFFECT IN OR NEAR THE WARNED AREA.
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. 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
May 10, 12:04 AM EDTSevere Thunderstorm WarningFFCBartow, Paulding, Polk36 min
May 10, 12:25 AM EDTSevere Thunderstorm WarningFFCCobb35 min
May 10, 12:42 AM EDTSevere Thunderstorm WarningFFCCherokee, Fulton33 min
May 10, 12:45 AM EDTSevere Thunderstorm WarningFFCCarroll35 min
May 10, 12:51 AM EDTSevere Thunderstorm WarningFFCDeKalb, Gwinnett34 min
May 10, 1:08 AM EDTSevere Thunderstorm WarningFFCDouglas, Fulton52 min
May 10, 1:12 AM EDTSevere Thunderstorm WarningFFCBarrow, Hall, Jackson33 min
May 10, 2:33 AM EDTSevere Thunderstorm WarningFFCCobb, Fulton32 min
May 10, 3:00 AM EDTSevere Thunderstorm WarningFFCPaulding35 min
May 10, 3:19 AM EDTSevere Thunderstorm WarningFFCHaralson, Polk36 min
May 10, 3:40 AM EDTSevere Thunderstorm WarningFFCCobb, Fulton35 min
May 10, 4:11 AM EDTSevere Thunderstorm WarningFFCDeKalb34 min
May 10, 4:13 AM EDTSevere Thunderstorm WarningFFCGwinnett32 min
May 10, 5:06 AM EDTSevere Thunderstorm WarningFFCOconee, Walton49 min
May 10, 5:51 AM EDTSevere Thunderstorm WarningFFCGreene, Morgan49 min
May 10, 6:45 AM EDTSevere Thunderstorm WarningFFCTaliaferro, Wilkes35 min
May 10, 8:19 AM EDTSevere Thunderstorm WarningFFCHarris, Troup36 min
May 10, 9:45 AM EDTSevere Thunderstorm WarningFFCWhite20 min
May 10, 12:35 PM EDTSevere Thunderstorm WarningFFCJohnson, Washington35 min
May 10, 3:27 PM EDTSevere Thunderstorm WarningFFCWilkes33 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.