Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 657, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 20, 1999, 7:52 PM EDT for Madison County, Georgia. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1999, 7:52 PM EDT (23:52 UTC)
- Expired
- Aug 20, 1999, 8:10 PM EDT
- In force
- 18 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Madison County, GA
The radar
The Greer radar (KGSP), 124 km from the middle of the area, began a volume at 23:54 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.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 146 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
- 1278 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1226 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 202352 RRA SVRATL GAC195-210010- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 752 PM EDT FRI AUG 20 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MADISON COUNTY IN NORTHEASTERN GEORGIA * UNTIL 810 PM EDT * AT 755 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 9 MILES SOUTHWEST OF DANIELSVILLE OR 3 MILES SOUTHWEST OF NEESE... MOVING EAST AT 5 MPH. * SOME CITIES IN THE PATH OF THIS STORM ARE NEESE AND STANFORD. 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.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:19 AM EDT | Severe Thunderstorm Warning | FFC | Paulding | 36 min |
| Aug 20, 2:49 AM EDT | Severe Thunderstorm Warning | FFC | Jefferson | 36 min |
| Aug 20, 4:36 AM EDT | Severe Thunderstorm Warning | FFC | Washington | 34 min |
| Aug 20, 5:11 AM EDT | Severe Thunderstorm Warning | FFC | Washington | 34 min |
| Aug 20, 3:13 PM EDT | Severe Thunderstorm Warning | FFC | Putnam | 37 min |
| Aug 20, 3:20 PM EDT | Severe Thunderstorm Warning | FFC | Jefferson | 35 min |
| Aug 20, 4:00 PM EDT | Severe Thunderstorm Warning | FFC | Jefferson | 35 min |
| Aug 20, 4:07 PM EDT | Severe Thunderstorm Warning | FFC | Harris | 33 min |
| Aug 20, 4:20 PM EDT | Severe Thunderstorm Warning | FFC | Jones | 35 min |
| Aug 20, 4:22 PM EDT | Severe Thunderstorm Warning | FFC | Hancock | 33 min |
| Aug 20, 4:43 PM EDT | Severe Thunderstorm Warning | FFC | Bibb | 17 min |
| Aug 20, 4:45 PM EDT | Severe Thunderstorm Warning | FFC | Douglas, Fulton | 35 min |
| Aug 20, 4:47 PM EDT | Severe Thunderstorm Warning | FFC | Twiggs | 33 min |
| Aug 20, 4:57 PM EDT | Severe Thunderstorm Warning | FFC | Harris | 33 min |
| Aug 20, 5:01 PM EDT | Severe Thunderstorm Warning | FFC | Bibb | 34 min |
| Aug 20, 5:04 PM EDT | Severe Thunderstorm Warning | FFC | Wilkinson | 36 min |
| Aug 20, 5:23 PM EDT | Severe Thunderstorm Warning | FFC | Twiggs | 37 min |
| Aug 20, 5:36 PM EDT | Severe Thunderstorm Warning | FFC | Madison | 34 min |
| Aug 20, 5:41 PM EDT | Severe Thunderstorm Warning | FFC | Jefferson, Johnson | 34 min |
| Aug 20, 5:47 PM EDT | Severe Thunderstorm Warning | FFC | Jackson | 33 min |
| Aug 20, 5:48 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel | 52 min |
| Aug 20, 5:57 PM EDT | Severe Thunderstorm Warning | FFC | Houston, Peach | 33 min |
| Aug 20, 6:05 PM EDT | Severe Thunderstorm Warning | FFC | Jasper | 35 min |
| Aug 20, 6:28 PM EDT | Severe Thunderstorm Warning | FFC | Bleckley | 32 min |
| Aug 20, 6:31 PM EDT | Severe Thunderstorm Warning | FFC | Houston | 19 min |
| Aug 20, 6:47 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Jasper | 33 min |
| Aug 20, 6:50 PM EDT | Severe Thunderstorm Warning | FFC | Dodge | 35 min |
| Aug 20, 6:51 PM EDT | Severe Thunderstorm Warning | FFC | Clarke | 34 min |
| Aug 20, 6:52 PM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe | 33 min |
| Aug 20, 6:53 PM EDT | Severe Thunderstorm Warning | FFC | Putnam | 37 min |
| Aug 20, 7:26 PM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe | 19 min |
| Aug 20, 7:28 PM EDT | Severe Thunderstorm Warning | FFC | Crisp, Dooly | 32 min |
| Aug 20, 7:30 PM EDT | Severe Thunderstorm Warning | FFC | Wilcox | 35 min |
| Aug 20, 7:31 PM EDT | Severe Thunderstorm Warning | FFC | Clarke | 34 min |
| Aug 20, 7:42 PM EDT | Severe Thunderstorm Warning | FFC | Jackson | 18 min |
| Aug 20, 7:44 PM EDT | Severe Thunderstorm Warning | FFC | Montgomery, Wheeler | 36 min |
| Aug 20, 7:56 PM EDT | Severe Thunderstorm Warning | FFC | Telfair | 34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.