Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 78, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 24, 1999, 5:58 PM EDT for Washington County, Georgia. It was in force for 32 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
- Apr 24, 1999, 5:58 PM EDT (21:58 UTC)
- Expired
- Apr 24, 1999, 6:30 PM EDT
- In force
- 32 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Washington County, GA
The radar
The Robins AFB radar (KJGX), 61 km from the middle of the area, began a volume at 22:01 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 |
|---|---|---|---|
| Apr 24, 6:07 PM EDT | Hail 0.75 | Oconee, GA | Washington county 911 reported dime size hail. |
| Apr 24, 6:30 PM EDT | Hail 0.75 | Oconee, GA | Dime size hail was indicated in the southeast part of Washington county as the storm re-intensified. |
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, 10.0 hours before the alert went out and 165 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
- 1372 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 137 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 242158 RRA SVRATL GAC303-242230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 558 PM EDT SAT APR 24 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON COUNTY IN EAST CENTRAL GEORGIA * UNTIL 630 PM EDT * AT 557 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 9 MILES WEST OF TENNILLE... MOVING EAST AT 10 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... TENNILLE AROUND 635 PM EDT 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
Special weather statement, Apr 24, 12:00 PM EDT, 5 hours 58 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 091>098-103>113-242030- NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1200 PM EDT SAT APR 24 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER THAT PORTION OF NORTH AND CENTRAL SOUTH OF A CEDARTOWN TO ATLANTA TO SPARTA TO LOUISVILLE. THE STORMS WILL DEVELOP ALONG AND SOUTH OF A SURFACE BOUNDARY ACROSS NORTH GEORGIA. AN UPPER AIR SYSTEM WILL MOVE ACROSS THE STATE AND REINFORCE THE STORMS THAT MAY DEVELOP IN THE AFTERNOON HEATING. THE MAIN THREAT FROM THE STORMS WILL BE HAIL AND GUSTY WINDS. SPOTTER ACTIVATION MAY BE NECESSARY. SPOTTERS AND EMA OFFICIALS SHOULD MONITOR THE SITUATION FOR POSSIBLE SEVERE THUNDERSTORM DEVELOPMENT.
Special weather statement, Apr 24, 12:00 PM EDT, 5 hours 58 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 091>098-103>113-242030- NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1200 PM EDT SAT APR 24 1999 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER THAT PORTION OF NORTH AND CENTRAL SOUTH OF A CEDARTOWN TO ATLANTA TO SPARTA TO LOUISVILLE. THE STORMS WILL DEVELOP ALONG AND SOUTH OF A SURFACE BOUNDARY ACROSS NORTH GEORGIA. AN UPPER AIR SYSTEM WILL MOVE ACROSS THE STATE AND REINFORCE THE STORMS THAT MAY DEVELOP IN THE AFTERNOON HEATING. THE MAIN THREAT FROM THE STORMS WILL BE HAIL AND GUSTY WINDS. SPOTTER ACTIVATION MAY BE NECESSARY. SPOTTERS AND EMA OFFICIALS SHOULD MONITOR THE SITUATION FOR POSSIBLE SEVERE THUNDERSTORM DEVELOPMENT.
Local storm report, Apr 24, 5:40 PM EDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
540 PM EDT SAT APR 24 1999
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
415 PM UNIDILLA GA 0.75 INCH HAIL
04/24/99 DOOLY
430 PM UNIDILLA GA 0.75 INCH HAIL
04/24/99 DOOLY
536 PM WILLIAMSON GA 1.00 INCH HAIL
04/24/99 PIKE
539 PM WILLIAMSON GA 1.00 INCH HAIL
04/24/99 PIKELocal storm report, Apr 24, 5:40 PM EDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
540 PM EDT SAT APR 24 1999
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
415 PM UNIDILLA GA 0.75 INCH HAIL
04/24/99 DOOLY
430 PM UNIDILLA GA 0.75 INCH HAIL
04/24/99 DOOLY
536 PM WILLIAMSON GA 1.00 INCH HAIL
04/24/99 PIKE
539 PM WILLIAMSON GA 1.00 INCH HAIL
04/24/99 PIKEThe office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 2:33 PM EDT | Severe Thunderstorm Warning | FFC | Meriwether, Troup | 32 min |
| Apr 24, 4:19 PM EDT | Severe Thunderstorm Warning | FFC | Dooly, Houston | 36 min |
| Apr 24, 4:54 PM EDT | Severe Thunderstorm Warning | FFC | Haralson, Polk | 36 min |
| Apr 24, 5:19 PM EDT | Severe Thunderstorm Warning | FFC | Dooly | 16 min |
| Apr 24, 5:22 PM EDT | Severe Thunderstorm Warning | FFC | Pike | 33 min |
| Apr 24, 5:59 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel | 36 min |
| Apr 24, 6:05 PM EDT | Severe Thunderstorm Warning | FFC | Pike | 35 min |
| Apr 24, 6:28 PM EDT | Severe Thunderstorm Warning | FFC | Johnson, Washington | 32 min |
| Apr 24, 6:45 PM EDT | Severe Thunderstorm Warning | FFC | Laurens | 35 min |
| Apr 24, 6:57 PM EDT | Severe Thunderstorm Warning | FFC | Johnson | 33 min |
| Apr 24, 7:28 PM EDT | Severe Thunderstorm Warning | FFC | Johnson, Laurens | 32 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.