Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 682, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 25, 1999, 7:37 PM EDT for DeKalb 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
- Aug 25, 1999, 7:37 PM EDT (23:37 UTC)
- Expired
- Aug 25, 1999, 8:10 PM EDT
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County DeKalb County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 25, 7:49 PM EDT | Hail 0.75 | Avondale Estates, GA | A citizen reported dime size hail and tree limbs blown down onto the road. |
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, 11.6 hours before the alert went out and 51 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
- 541 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 754 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
184 WUUS52 KFFC 252339 RRA SVRATL GAC089-260010- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 737 PM EDT WED AUG 25 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... DEKALB COUNTY IN NORTHWESTERN GEORGIA * UNTIL 810 PM EDT * AT 736 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 2 MILES EAST OF DECATUR... MOVING EAST AT 10 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... TUCKER... STONE MOUNTAIN... DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. IF YOU SEE DAMAGE OR LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT EXTENSION 2 0 4.
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
Local storm report, Aug 25, 6:38 PM EDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
638 PM EDT WED AUG 25 1999
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
550 PM COVINGTON/PORTERDALE GA 1.75 INCH HAIL
08/25/99 NEWTON NUMEROUS REPORTS OF DIME TO
GOLF BALL SIZE HAIL FROM
550 EDT TO 610 EDTLocal storm report, Aug 25, 7:20 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
720 PM EDT WED AUG 25 1999
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
550 PM COVINGTON/PORTERDALE GA 1.75 INCH HAIL
08/25/99 NEWTON NUMEROUS REPORTS OF DIME TO
GOLFBALL SIZE HAIL FROM
550 EDT TO 611 EDT
625 PM MADISON GA 1.75 INCH HAIL
08/25/99 MORGAN SPOTTER REPORTED GOLFBALL
SIZE HAIL FROM 625 EDT TO
640 EDTThe office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 5:06 PM EDT | Severe Thunderstorm Warning | FFC | Troup | 34 min |
| Aug 25, 5:42 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 33 min |
| Aug 25, 5:57 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 33 min |
| Aug 25, 6:04 PM EDT | Severe Thunderstorm Warning | FFC | Cobb, Douglas | 36 min |
| Aug 25, 6:11 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 19 min |
| Aug 25, 6:30 PM EDT | Severe Thunderstorm Warning | FFC | Greene, Morgan | 35 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999
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.