Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 943, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 30, 1998, 4:27 PM EDT for Cobb County, Fulton County, Georgia. It was in force for 33 min. 3 reports 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
- Aug 30, 1998, 4:27 PM EDT (20:27 UTC)
- Expired
- Aug 30, 1998, 5:00 PM EDT
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Cobb County, GA, Fulton County, GA
The radar
The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 20:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 30, 4:30 PM EDT | Hail 1.25 | Marietta, GA | Several public reports were received of hail ranging from dime to half dollar size. |
| Aug 30, 4:34 PM EDT | Hail 0.88 | Roswell, GA | |
| Aug 30, 4:35 PM EDT | Thunderstorm Wind | Marietta, GA | Public and newspaper reports indicated thunderstorm winds snapped or uprooted a few trees and tree limbs and knocked down power lines. Part of an 8 to 10 inch diameter tree fell on a house and another large limb smashed the back window of a car. |
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, 8.5 hours before the alert went out and 55 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.
- Mixed-layer CAPE
- 36 J/kg
- Mixed-layer CIN
- -229 J/kg
- Mixed-layer LCL
- 1734 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
148 WUUS1 KATL 302028 RRA SVRATL GAC067-121-302100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 427 PM EDT SUN AUG 30 1998 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COBB COUNTY IN NORTHWESTERN GEORGIA FULTON COUNTY IN NORTHWESTERN GEORGIA * UNTIL 500 PM EDT * AT 426 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 4 MILES WEST OF ROSWELL MOVING EAST AT 5 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. MSS/JB
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 5:01 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Floyd | 49 min |
| Aug 30, 6:50 PM EDT | Severe Thunderstorm Warning | FFC | Forsyth, Hall | 45 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; radar from the NEXRAD Level II archive.