Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 520, NWS Atlanta, GA

May 29, 1998Harris County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 29, 1998, 12:19 PM EDT for Harris County, Georgia. It was in force for 31 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 29, 1998, 12:19 PM EDT (16:19 UTC)
Expired
May 29, 1998, 12:50 PM EDT
In force
31 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Harris County, GA

The radar

The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 16:18 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, 4.3 hours before the alert went out and 80 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 1998-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1144 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 1998-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1144 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
904 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
2 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.

598 
WUUS1 KATL 291617 RRA
SVRATL
GAC145-291650-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1219 PM EDT FRI MAY 29 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN HARRIS COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 1250 PM EDT

* AT 1217 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  9 MILES SOUTHWEST OF WHITESVILLE MOVING NORTHEAST AT 10
  MPH.

DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE
AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. BOATERS...GOLFERS...
AND OTHERS INVOLVED IN OUTSIDE ACTIVITIES SHOULD SEEK SHELTER
IMMEDIATELY. 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.

WRS

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 29, 6:25 AM EDT, 5 hours 54 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-291615-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
625 AM EDT FRI MAY 29 1998

SEVERE THUNDERSTORMS ARE NOT EXPECTED ACROSS NORTH AND CENTRAL
GEORGIA TODAY AND TONIGHT.

WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED OVER EXTREME NORTH GEORGIA
TODAY NEAR A WEAK BUT LINGERING FRONTAL BOUNDARY EXTENDING ACROSS THE
SOUTHERN APPfALACHIANS. THE STORMS SHOULD NOT REACH SEVERE LEVELS.

OTHERWISE...WARM AIR IN THE MID LEVELS WILL CONTINUE TO SUPPRESS
THUNDERSYORMS DEVELOPMENT ELSEWHERE TODAY AND TONIGHT.

SPOTTER ACTIVATION IS NOT LIKELY TODAY OR TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 2:28 PM EDTSevere Thunderstorm WarningFFCTalbot, Taylor, Upson32 min
May 29, 4:07 PM EDTSevere Thunderstorm WarningFFCCoweta33 min
May 29, 4:13 PM EDTSevere Thunderstorm WarningFFCHarris32 min
May 29, 5:19 PM EDTSevere Thunderstorm WarningFFCFulton36 min
May 29, 5:43 PM EDTSevere Thunderstorm WarningFFCJefferson32 min
May 29, 6:28 PM EDTSevere Thunderstorm WarningFFCDeKalb, Rockdale32 min
May 29, 6:49 PM EDTSevere Thunderstorm WarningFFCNewton36 min
May 29, 6:56 PM EDTSevere Thunderstorm WarningFFCDooly, Pulaski34 min
May 29, 7:40 PM EDTSevere Thunderstorm WarningFFCPulaski35 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.