Alert archive / Georgia / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 187, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at May 13, 1999, 5:57 PM EDT for Jasper 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
- May 13, 1999, 5:57 PM EDT (21:57 UTC)
- Expired
- May 13, 1999, 6:30 PM EDT
- In force
- 33 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 21:59 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 |
|---|---|---|---|
| May 13, 6:25 PM EDT | Hail 0.75 | Monticello, GA | The public reported dime size hail. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 13, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 10.0 hours before the alert went out and 288 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
- 904 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KATL 132156 RRA SVRATL GAC159-132230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 557 PM EDT THU MAY 13 1999 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN JASPER COUNTY IN NORTHEASTERN GEORGIA * UNTIL 630 PM EDT * AT 557 PM .. A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 7 MILES NORTHWEST OF HILLSBORO... MOVING EAST AT 25 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM ARE... HILLSBORO AROUND 605 PM THIS THUNDERSTORM IS PRODUCING VERY HEAVY RAIN THAT MAY FLOOD ROADS QUICKLY. DO NOT DRIVE 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.
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, May 13, 4:50 PM EDT, 1 hour 7 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>073-075-078-079- 132200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 450 PM EDT THU MAY 13 1999 STRONG TO SEVERE THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTH GEORGIA THIS AFTERNOON. CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS FROM BANKS COUNTY...TO ATLANTA...TO FRANKLIN...WERE MOVING EAST AT 25 TO 30 MPH. SOME OF THESE STORMS WILL PRODUCE LARGE HAIL...TORRENTIAL DOWNPOURS...AND FREQUENT CLOUD TO GROUND LIGHTNING. THESE STORMS WILL LIKELY MOVE THROUGH NEWNAN...COVINGTON...AND JUST TO THE NORTH OF ATHENS BETWEEN 500 PM AND 600 PM. OTHER STRONG STORMS WERE SCATTERED BETWEEN ATLANTA AND CEDARTOWN... AND ALSO JUST TO THE NORTH OF COLUMBUS. THESE STORMS WILL ALSO MOVE EAST AT 25 TO 30 MPH...AND WILL LIKELY CONTAIN HAIL AND TORRENTIAL DOWNPOURS. IF THE WEATHER LOOKS THREATENING...SEEK SHELTER IMMEDIATELY. REPORT ANY SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT EXTENSION 2 0 4.
Special weather statement, May 13, 4:50 PM EDT, 1 hour 7 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>073-075-078-079- 132200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 450 PM EDT THU MAY 13 1999 STRONG TO SEVERE THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTH GEORGIA THIS AFTERNOON. CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS FROM BANKS COUNTY...TO ATLANTA...TO FRANKLIN...WERE MOVING EAST AT 25 TO 30 MPH. SOME OF THESE STORMS WILL PRODUCE LARGE HAIL...TORRENTIAL DOWNPOURS...AND FREQUENT CLOUD TO GROUND LIGHTNING. THESE STORMS WILL LIKELY MOVE THROUGH NEWNAN...COVINGTON...AND JUST TO THE NORTH OF ATHENS BETWEEN 500 PM AND 600 PM. OTHER STRONG STORMS WERE SCATTERED BETWEEN ATLANTA AND CEDARTOWN... AND ALSO JUST TO THE NORTH OF COLUMBUS. THESE STORMS WILL ALSO MOVE EAST AT 25 TO 30 MPH...AND WILL LIKELY CONTAIN HAIL AND TORRENTIAL DOWNPOURS. IF THE WEATHER LOOKS THREATENING...SEEK SHELTER IMMEDIATELY. REPORT ANY SEVERE WEATHER TO 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 |
|---|---|---|---|---|
| May 13, 12:25 PM EDT | Tornado Warning | FFC | Fannin | 20 min |
| May 13, 1:08 PM EDT | Severe Thunderstorm Warning | FFC | Chattooga | 32 min |
| May 13, 1:38 PM EDT | Severe Thunderstorm Warning | FFC | Floyd, Gordon | 47 min |
| May 13, 1:48 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Walker | 47 min |
| May 13, 2:01 PM EDT | Severe Thunderstorm Warning | FFC | Bartow | 34 min |
| May 13, 2:18 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee | 47 min |
| May 13, 2:25 PM EDT | Severe Thunderstorm Warning | FFC | Polk | 50 min |
| May 13, 2:26 PM EDT | Severe Thunderstorm Warning | FFC | Floyd | 34 min |
| May 13, 2:41 PM EDT | Severe Thunderstorm Warning | FFC | Bartow | 34 min |
| May 13, 2:56 PM EDT | Severe Thunderstorm Warning | FFC | Carroll, Heard | 34 min |
| May 13, 2:56 PM EDT | Severe Thunderstorm Warning | FFC | Haralson | 34 min |
| May 13, 2:59 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee | 36 min |
| May 13, 3:04 PM EDT | Severe Thunderstorm Warning | FFC | Paulding | 51 min |
| May 13, 3:07 PM EDT | Severe Thunderstorm Warning | FFC | Washington | 48 min |
| May 13, 3:11 PM EDT | Severe Thunderstorm Warning | FFC | Douglas | 49 min |
| May 13, 3:17 PM EDT | Severe Thunderstorm Warning | FFC | Dawson, Forsyth | 48 min |
| May 13, 3:28 PM EDT | Severe Thunderstorm Warning | FFC | Coweta | 47 min |
| May 13, 3:32 PM EDT | Severe Thunderstorm Warning | FFC | Cobb, Fulton | 48 min |
| May 13, 3:51 PM EDT | Severe Thunderstorm Warning | FFC | Hall | 49 min |
| May 13, 3:57 PM EDT | Severe Thunderstorm Warning | FFC | Clayton, DeKalb | 48 min |
| May 13, 3:57 PM EDT | Severe Thunderstorm Warning | FFC | Fayette | 48 min |
| May 13, 4:08 PM EDT | Tornado Warning | FFC | Forsyth, Hall | 32 min |
| May 13, 4:11 PM EDT | Tornado Warning | FFC | Coweta | 19 min |
| May 13, 4:17 PM EDT | Severe Thunderstorm Warning | FFC | Barrow, Jackson | 33 min |
| May 13, 4:29 PM EDT | Severe Thunderstorm Warning | FFC | Henry, Rockdale | 31 min |
| May 13, 4:45 PM EDT | Severe Thunderstorm Warning | FFC | Banks, Madison | 35 min |
| May 13, 4:51 PM EDT | Severe Thunderstorm Warning | FFC | Spalding | 34 min |
| May 13, 4:57 PM EDT | Severe Thunderstorm Warning | FFC | Coweta | 33 min |
| May 13, 5:03 PM EDT | Severe Thunderstorm Warning | FFC | Clarke, Jackson | 17 min |
| May 13, 5:08 PM EDT | Tornado Warning | FFC | Butts, Spalding | 17 min |
| May 13, 5:26 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel | 34 min |
| May 13, 5:27 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Jasper | 33 min |
| May 13, 5:32 PM EDT | Severe Thunderstorm Warning | FFC | Madison, Oglethorpe | 18 min |
| May 13, 5:48 PM EDT | Severe Thunderstorm Warning | FFC | Clayton, Henry, Spalding | 37 min |
| May 13, 5:52 PM EDT | Severe Thunderstorm Warning | FFC | Pike | 33 min |
| May 13, 6:09 PM EDT | Severe Thunderstorm Warning | FFC | Lamar | 36 min |
| May 13, 6:11 PM EDT | Severe Thunderstorm Warning | FFC | Putnam | 34 min |
| May 13, 6:18 PM EDT | Severe Thunderstorm Warning | FFC | Monroe | 32 min |
| May 13, 6:29 PM EDT | Severe Thunderstorm Warning | FFC | Pike, Upson | 36 min |
| May 13, 6:31 PM EDT | Severe Thunderstorm Warning | FFC | Jones | 34 min |
| May 13, 6:47 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa | 33 min |
| May 13, 7:05 PM EDT | Severe Thunderstorm Warning | FFC | Gordon | 35 min |
| May 13, 7:14 PM EDT | Severe Thunderstorm Warning | FFC | Webster | 36 min |
| May 13, 7:16 PM EDT | Severe Thunderstorm Warning | FFC | Murray | 34 min |
| May 13, 7:26 PM EDT | Severe Thunderstorm Warning | FFC | Floyd | 34 min |
| May 13, 7:39 PM EDT | Severe Thunderstorm Warning | FFC | Sumter | 51 min |
| May 13, 7:44 PM EDT | Severe Thunderstorm Warning | FFC | Crisp | 36 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.