Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 781, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jun 30, 1998, 8:15 PM EDT for Gwinnett County, Georgia. It was in force for 35 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
- Jun 30, 1998, 8:15 PM EDT (00:15 UTC)
- Expired
- Jun 30, 1998, 8:50 PM EDT
- In force
- 35 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 83 km from the middle of the area, began a volume at 00:22 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 |
|---|---|---|---|
| Jun 30, 8:20 PM EDT | Thunderstorm Wind 52 | Suwanee, GA | A spotter and the public reported trees and power lines down. The wind was estimated at 60 mph. |
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 00:00Z, 0.3 hours before the alert went out and 79 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
- 1323 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1608 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 010022 COR SVRATL GAC135-010050- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 815 PM EDT TUE JUN 30 1998 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GWINNETT COUNTY IN NORTHWESTERN GEORGIA * UNTIL 850 PM EDT * AT 814 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR IN THE VICINITY OF SUGAR HILL MOVING SOUTH AT 35 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. PAH/SL
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:24 PM EDT | Severe Thunderstorm Warning | FFC | Douglas | 36 min |
| Jun 30, 8:46 PM EDT | Severe Thunderstorm Warning | FFC | Fulton | 34 min |
| Jun 30, 8:57 PM EDT | Severe Thunderstorm Warning | FFC | Clayton | 33 min |
| Jun 30, 9:04 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb | 36 min |
| Jun 30, 9:11 PM EDT | Severe Thunderstorm Warning | FFC | Newton, Rockdale | 34 min |
| Jun 30, 9:14 PM EDT | Severe Thunderstorm Warning | FFC | Henry | 36 min |
| Jun 30, 9:29 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Jasper | 46 min |
| Jun 30, 10:26 PM EDT | Severe Thunderstorm Warning | FFC | Bartow, Cherokee, Gordon | 34 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.