Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 581, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 13, 1999, 2:51 PM EDT for Jasper County, Georgia. It was in force for 34 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 13, 1999, 2:51 PM EDT (18:51 UTC)
- Expired
- Aug 13, 1999, 3:25 PM EDT
- In force
- 34 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Jasper County, GA
The radar
The Robins AFB radar (KJGX), 78 km from the middle of the area, began a volume at 18:53 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 13, 3:00 PM EDT | Thunderstorm Wind | Hillsboro, GA | Jasper county 911 reported several trees and power lines down in Hillsboro and south of Monticello. |
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, 6.9 hours before the alert went out and 76 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
- 1845 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1383 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
066 WUUS52 KFFC 131851 RRA SVRATL GAC159-131925- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 251 PM EDT FRI AUG 13 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JASPER COUNTY IN NORTHEASTERN GEORGIA * UNTIL 325 PM EDT * AT 251 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 6 MILES SOUTH OF MONTICELLO OR 4 MILES NORTHWEST OF HILLSBORO... MOVING SOUTHEAST AT 15 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... HILLSBORO... TO AVOID BEING STRUCK BY LIGHTNING...STAY INDOORS AND AWAY FROM WINDOWS. DO NOT USE ELECTRICAL APPLIANCES OR TELEPHONES...UNLESS IN AN EMERGENCY. 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 13, 2:50 PM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
250 PM EDT FRI AUG 13 1999
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
158 PM KNOXVILLE GA WIND DAMAGE
08/13/99 CRAWFORD CRAWFORD COUNTY SHERIFFS
OFFICE REPORTED TREES DOWN
IN THE CITY OF KNOXVILLE
205 PM DAHLONEGA GA 1.00 INCH HAIL
08/13/99 LUMPKIN SEVERAL REPORTS OF QUARTER
TO GOLFBALL SIZE HAIL IN THE
CITY OF DAHLONEGA
220 PM FORSYTH GA WIND DAMAGE
08/13/99 MONROE MONROE COUNT SHERIFFS OFFICE
REPORTED TREES DOWN ON JOE
CHAMBERS ROAD IN FORSYTH.
OTHER TREES DOWN ON HIGHWAY
18 WEST OF FORSYTH.
240 PM GRAY GA WIND DAMAGE
08/13/99 JONES JONES COUNTY SHERIFFS OFFICE
REPORTED TREES DOWN 10 MILES
NORTH OF THE CITY OF GRAY.The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 8:53 PM EDT | Severe Thunderstorm Warning | FFC | Carroll | 22 min |
| Aug 12, 9:12 PM EDT | Severe Thunderstorm Warning | FFC | Carroll | 33 min |
| Aug 13, 1:39 PM EDT | Severe Thunderstorm Warning | FFC | Crawford | 36 min |
| Aug 13, 1:46 PM EDT | Severe Thunderstorm Warning | FFC | Lumpkin | 34 min |
| Aug 13, 2:03 PM EDT | Severe Thunderstorm Warning | FFC | Monroe | 37 min |
| Aug 13, 2:24 PM EDT | Severe Thunderstorm Warning | FFC | Jones | 36 min |
| Aug 13, 2:38 PM EDT | Severe Thunderstorm Warning | FFC | Taylor | 32 min |
| Aug 13, 3:04 PM EDT | Severe Thunderstorm Warning | FFC | Oconee | 36 min |
| Aug 13, 3:10 PM EDT | Severe Thunderstorm Warning | FFC | Taylor | 35 min |
| Aug 13, 3:26 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 34 min |
| Aug 13, 3:33 PM EDT | Severe Thunderstorm Warning | FFC | Henry | 32 min |
| Aug 13, 3:40 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 35 min |
| Aug 13, 4:04 PM EDT | Severe Thunderstorm Warning | FFC | Meriwether | 36 min |
| Aug 13, 4:12 PM EDT | Severe Thunderstorm Warning | FFC | Dooly | 33 min |
| Aug 13, 4:18 PM EDT | Severe Thunderstorm Warning | FFC | Sumter | 32 min |
| Aug 13, 4:38 PM EDT | Severe Thunderstorm Warning | FFC | Pulaski | 32 min |
| Aug 13, 4:50 PM EDT | Severe Thunderstorm Warning | FFC | Sumter | 35 min |
| Aug 13, 5:35 PM EDT | Severe Thunderstorm Warning | FFC | Gwinnett | 35 min |
| Aug 13, 5:40 PM EDT | Severe Thunderstorm Warning | FFC | Harris | 35 min |
| Aug 13, 6:13 PM EDT | Severe Thunderstorm Warning | FFC | Gwinnett | 37 min |
| Aug 13, 6:15 PM EDT | Severe Thunderstorm Warning | FFC | Harris | 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; radar from the NEXRAD Level II archive.