Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 548, NWS Atlanta, GA

May 30, 1998Troup County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 30, 1998, 5:56 PM EDT for Troup County, Georgia. It was in force for 34 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 30, 1998, 5:56 PM EDT (21:56 UTC)
Expired
May 30, 1998, 6:30 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Troup County, GA

The radar

The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 22:02 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 62 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 1998-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 395 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 1998-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
395 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
826 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
8 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 302156 RRA
SVRATL
GAC285-302230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
556 PM EDT SAT MAY 30 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TROUP COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 630 PM EDT

* AT 556 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  2 MILES SOUTH OF HARRISONVILLE MOVING NORTH AT 10 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE...
   HARRISONVILLE               AROUND 605 PM EDT
   HOGANSVILLE                 AROUND 610 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

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 30, 12:40 PM EDT, 5 hours 16 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-DDHHMM-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
108 PM EDT FRI MAY 29 1998

SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EXTREME NORTH GEORGIA THIS
AFTERNOON AND EVENING.

A STATIONARY FRONT ACROSS THE CAROLINAS AND TENNESSEE WILL BE THE
FOCUS OF THUNDERSTORM DEVELOPMENT THIS AFTERNOON. A MODERATELY MOIST
AND UNSTABLE AIRMASS SOUTH OF THE FRONT WILL CONTINUE ACROSS THE
STATE AS A WEAK UPPER LEVEL DISTURBANCE MOVES ACROSS NORTH GEORGIA
THIS AFTERNOON AND EVENING.

SPOTTERS SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION LATER TODAY.
EMERGENCY MANAGERS SHOULD MONITOR THE SITUATION.

66

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:44 PM EDTSevere Thunderstorm WarningFFCJohnson, Washington36 min
May 29, 9:00 PM EDTSevere Thunderstorm WarningFFCJefferson35 min
May 30, 11:55 AM EDTFlash Flood WarningFFCLaurens60 min
May 30, 12:28 PM EDTSevere Thunderstorm WarningFFCTreutlen32 min
May 30, 12:32 PM EDTSevere Thunderstorm WarningFFCEmanuel33 min
May 30, 12:37 PM EDTSevere Thunderstorm WarningFFCHancock, Taliaferro33 min
May 30, 12:56 PM EDTSevere Thunderstorm WarningFFCMontgomery, Toombs34 min
May 30, 1:06 PM EDTSevere Thunderstorm WarningFFCWashington, Wilkinson34 min
May 30, 1:12 PM EDTSevere Thunderstorm WarningFFCEmanuel48 min
May 30, 1:38 PM EDTSevere Thunderstorm WarningFFCMontgomery, Toombs, Treutlen47 min
May 30, 1:48 PM EDTSevere Thunderstorm WarningFFCGlascock, Jefferson, Washington32 min
May 30, 2:12 PM EDTSevere Thunderstorm WarningFFCLaurens33 min
May 30, 2:24 PM EDTSevere Thunderstorm WarningFFCJefferson31 min
May 30, 3:36 PM EDTSevere Thunderstorm WarningFFCHouston34 min
May 30, 3:47 PM EDTSevere Thunderstorm WarningFFCPeach33 min
May 30, 4:00 PM EDTSevere Thunderstorm WarningFFCMontgomery, Telfair, Wheeler35 min
May 30, 4:13 PM EDTSevere Thunderstorm WarningFFCDooly32 min
May 30, 4:35 PM EDTSevere Thunderstorm WarningFFCMarion35 min
May 30, 5:00 PM EDTSevere Thunderstorm WarningFFCCrisp35 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; radar from the NEXRAD Level II archive.