Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 28, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Feb 17, 1998, 8:27 AM EST for Gwinnett County, Georgia. It was in force for 33 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
- Feb 17, 1998, 8:27 AM EST (13:27 UTC)
- Expired
- Feb 17, 1998, 9:00 AM EST
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Gwinnett County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 17, 8:30 AM EST | Hail 0.88 | Suwanee, GA | Dime to nickel size hail was reported by the public. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 17, 6:15 AM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 1.5 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
- 92 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- 626 m²/s²
- 0-3 km storm-relative helicity
- 581 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 171327 RRA SVRATL GAC063-135-151-247-171400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 827 AM EST TUE FEB 17 1998 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...CLAYTON COUNTY...GWINNETT COUNTY...HENRY COUNTY ...ROCKDALE COUNTY AT 825 AM EST DOPPLER WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS FROM WESTERN GWINNETT COUNTY THROUGH DEKALB COUNTY TO FAYETTEVILLE MOVING EAST AT 50 MPH. THE PRIMARY THREAT FROM THESE THUNDERSTORMS IS DIME SIZE HAIL OR LARGER. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. 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.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 5:29 AM EST | Severe Thunderstorm Warning | FFC | Heard | 31 min |
| Feb 17, 5:46 AM EST | Severe Thunderstorm Warning | FFC | Carroll | 29 min |
| Feb 17, 6:17 AM EST | Severe Thunderstorm Warning | FFC | Polk | 58 min |
| Feb 17, 7:46 AM EST | Severe Thunderstorm Warning | FFC | Cobb, Fulton | 44 min |
| Feb 17, 8:17 AM EST | Severe Thunderstorm Warning | FFC | DeKalb | 28 min |
| Feb 17, 8:27 AM EST | Severe Thunderstorm Warning | FFC | Clayton, Henry, Rockdale | 33 min |
| Feb 17, 8:35 AM EST | Severe Thunderstorm Warning | FFC | Lumpkin | 25 min |
| Feb 17, 8:42 AM EST | Severe Thunderstorm Warning | FFC | Hall | 33 min |
| Feb 17, 8:44 AM EST | Severe Thunderstorm Warning | FFC | Spalding | 31 min |
| Feb 17, 8:50 AM EST | Severe Thunderstorm Warning | FFC | Banks, Jackson | 25 min |
| Feb 17, 8:50 AM EST | Severe Thunderstorm Warning | FFC | Barrow | 25 min |
| Feb 17, 8:59 AM EST | Severe Thunderstorm Warning | FFC | Newton, Rockdale | 31 min |
| Feb 17, 9:08 AM EST | Severe Thunderstorm Warning | FFC | Walton | 37 min |
| Feb 17, 10:07 AM EST | Severe Thunderstorm Warning | FFC | Oglethorpe | 38 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.