Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 894, NWS Atlanta, GA

July 30, 1998Bibb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 30, 1998, 4:37 PM EDT for Bibb County, Georgia. It was in force for 18 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
Jul 30, 1998, 4:37 PM EDT (20:37 UTC)
Expired
Jul 30, 1998, 4:55 PM EDT
In force
18 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Bibb County, GA

What was reported inside it

TimeReportWhereRemark
Jul 30, 4:45 PM EDTThunderstorm WindMacon, GABibb county 911 reported several trees downed on the east side of Macon.

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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.6 hours before the alert went out and 97 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 1998-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 330 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 1998-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
330 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
70 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.

367 
WUUS1 KATL 302038 RRA
SVRATL
GAC021-302055-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
437 PM EDT THU JUL 30 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BIBB COUNTY IN CENTRAL GEORGIA

* UNTIL 455 PM EDT

* AT 436 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR 6 MILES NORTHWEST OF MACON MOVING SOUTHEAST AT 15 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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 3:16 PM EDTSevere Thunderstorm WarningFFCMeriwether34 min
Jul 30, 3:50 PM EDTSevere Thunderstorm WarningFFCDooly35 min
Jul 30, 4:44 PM EDTSevere Thunderstorm WarningFFCWilkinson36 min
Jul 30, 4:54 PM EDTSevere Thunderstorm WarningFFCTwiggs36 min
Jul 30, 5:03 PM EDTSevere Thunderstorm WarningFFCBibb, Houston32 min
Jul 30, 5:28 PM EDTSevere Thunderstorm WarningFFCTelfair37 min
Jul 30, 5:58 PM EDTSevere Thunderstorm WarningFFCMontgomery, Wheeler32 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.