Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 516, NWS Atlanta, GA

May 18, 1998Greene County, Hancock County, Taliaferro County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 18, 1998, 4:19 PM EDT for Greene County, Hancock County, Taliaferro County, Georgia. It was in force for 61 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
May 18, 1998, 4:19 PM EDT (20:19 UTC)
Expired
May 18, 1998, 5:20 PM EDT
In force
61 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Greene County, GA, Hancock County, GA, Taliaferro County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.3 hours before the alert went out and 138 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 1998-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1314 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 1998-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 square meters per square second.19395878Sfc1 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
1314 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
919 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 182019 RRA
SVRATL
GAC133-141-265-182120-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
419 PM EDT MON MAY 18 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM AND FLASH FLOOD WARNING FOR...
  EASTERN GREENE COUNTY IN NORTHEASTERN GEORGIA
  NORTHEASTERN HANCOCK COUNTY IN EAST CENTRAL GEORGIA
  WESTERN TALIAFERRO COUNTY IN NORTHEASTERN GEORGIA

* UNTIL 520 PM EDT

RADAR INDICATED A NEARLY STATIONARY CLUSTER OF SEVERE THUNDERSTORMS
OVER THE SOUTH FORK OF THE OGEECHEE RIVER BETWEEN ROBINSON AND
MAYFIELD. THESE STORMS WERE SHOWING LITTLE MOVEMENT AND WERE
PRODUCING VERY HEAVY RAINFALL.


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 DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD. 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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...
ON FOOT. DO NOT ALLOW CHILDREN TO PLAY NEAR CREEKS...DRAINAGE
DITCHES OR URBAN SEWER SYSTEMS DURING OR AFTER HEAVY RAINS. IF
RAPIDLY RISING WATER& THREATENS HOMES OR BUSINESSES IN YOUR AREA...OR
IF YOU SEE ROADS OR BRIDGES BEING COVERED WITH WATER FROM RISING
CREEKS OR STREAMS... CONTACT THE NATIONAL WEATHER SERVICE AT THE
PHONE NUMBER ABOVE.

MSS

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 3:48 PM EDTSevere Thunderstorm WarningFFCGreene, Taliaferro32 min
May 18, 4:19 PM EDTFlash Flood WarningFFCGreene, Hancock, Taliaferro61 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.