Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 488, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 17, 1999, 2:39 PM EDT for Gordon County, Georgia. It was in force for 36 min. 2 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
- Jul 17, 1999, 2:39 PM EDT (18:39 UTC)
- Expired
- Jul 17, 1999, 3:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Gordon County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 17, 3:08 PM EDT | Thunderstorm Wind | Ranger, GA | Thunderstorm winds knocked trees down. |
| Jul 17, 3:10 PM EDT | Hail 0.88 | Fairmount, GA |
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, 6.7 hours before the alert went out and 131 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
- 59 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 9 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 171838 RRA SVRATL GAC129-171915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 239 PM EDT SAT JUL 17 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GORDON COUNTY IN NORTHWESTERN GEORGIA * UNTIL 315 PM EDT * AT 238 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 2 MILES NORTHEAST OF RANGER... MOVING WEST AT 5 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... OAKMAN AROUND 250 PM EDT... RANGER AROUND 250 PM EDT... THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAIN THAT MAY FLOOD ROADS QUICKLY. DO NOT DRBIVE INTO AREAS WHERE WATER COVERS THE ROAD. IF YOU SEE FLOODING...LARGE HAIL OR WIND DAMAGE...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT EXTENSION 2 0 4.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 5:22 PM EDT | Severe Thunderstorm Warning | FFC | Walker | 33 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.