Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 407, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at May 7, 1998, 12:40 PM EDT for Jefferson County, Georgia. It was in force for 35 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
- May 7, 1998, 12:40 PM EDT (16:40 UTC)
- Expired
- May 7, 1998, 1:15 PM EDT
- In force
- 35 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Jefferson County, GA
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 7, 11:30 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 4.7 hours before the alert went out and 197 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
- 650 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 521 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 071640 RRA SVRATL GAC163-071715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1240 PM EDT THU MAY 7 1998 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN JEFFERSON COUNTY IN EAST CENTRAL GEORGIA * UNTIL 115 PM EDT * AT 1240 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 4 MILES SOUTH OF STELLAVILLE MOVING EAST AT 45 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. IF YOU EXPERIENCE STORM DAMAGE TO STRUCTURES OR TREES...OR HAIL THE SIZE OF DIMES OR LARGER...PLEASE REPORT IT TO THE NATIONAL WEATHER SERVICE BY CALLING 770-486-8535.
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 7, 7:15 AM EDT, 5 hours 25 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 715 AM EDT THU MAY 7 1998 ...OUTBREAK OF SEVERE THUNDERSTORMS WITH TORNADOES...DAMAGING WINDS AND LARGE HAIL EXPECTED FOR PARTS OF THE SOUTHEASTERN U.S. TODAY... THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA IS FORECASTING THE DEVELOPMENT OF SEVERE THUNDERSTORMS WITH A FEW INTENSE TORNADOES...DAMAGING WINDS AND LARGE HAIL FOR PARTS OF THE SOUTHEASTERN U.S THIS AFTERNOON INTO TONIGHT. THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE: SOUTHEAST TENNESSEE...NORTHEAST ALABAMA...NORTHERN GEORGIA... WESTERN NORTH CAROLINA AND WESTERN AND CENTRAL SOUTH CAROLINA. SEVERAL INGREDIENTS WILL BE IN PLACE FOR AN OUTBREAK OF SEVERE THUNDERSTORMS IN PARTS OF THE SOUTHEAST THIS AFTERNOON AND EVENING. A DEVELOPING LOW PRESSURE AREA OVER THE OHIO VALLEY IS PRODUCING A STRONG SOUTHWESTERLY FLOW OF VERY MOIST UNSTABLE AIR TO MOVE ACROSS THE SOUTHEAST U. S. TODAY. COUPLED WITH THIS IS AN UNSEASONABLY STRONG UPPER LEVEL JET OF UP TO 150 MPH PLUS VERY FAVORABLE VERTICAL WIND SHEAR PROFILES. CURRENT SEVERE THUNDERSTORM ACTIVITY MOVING ACROSS THE TENNESSEE VALLEY IS EXPECTED TO WEAKEN SOME THIS MORNING BUT IN THE PROCESS WILL PROVIDE A SURFACE BOUNDARY TO FOCUS DEVELOPMENT OF SEVERE STORMS AGAIN DURING THE HEAT OF THE AFTERNOON. ADDITIONAL THUNDERSTORMS SHOULD COMMENCE ACROSS PORTIONS OF EASTERN TENNESSEE/NORTHERN ALABAMA AND GEORGIA THIS AFTERNOON...MOVING RAPIDLY EAST AND SOUTHEAST INTO THE CAROLINAS AND CENTRAL GEORGIA BY THIS EVENING. GIVEN THE AMOUNT OF UNSTABLE AIR AND STRONG WIND FIELDS AT ALL LEVELS...THESE STORMS ARE EXPECTED TO BE CAPABLE OF PRODUCING WIDESPREAD LARGE HAIL AND DAMAGING WINDS ALONG WITH THE POTENTIAL FOR SUPERCELLS AND A FEW INTENSE TORNADOS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. THOSE IN THE THREATENED AREAS ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES... AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER WATCHES ...WARNINGS AND STATEMENTS.
Special weather statement, May 7, 7:15 AM EDT, 5 hours 25 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 715 AM EDT THU MAY 7 1998 ...OUTBREAK OF SEVERE THUNDERSTORMS WITH TORNADOES...DAMAGING WINDS AND LARGE HAIL EXPECTED FOR PARTS OF THE SOUTHEASTERN U.S. TODAY... THE STORM PREDICTION CENTER IN NORMAN OKLAHOMA IS FORECASTING THE DEVELOPMENT OF SEVERE THUNDERSTORMS WITH A FEW INTENSE TORNADOES...DAMAGING WINDS AND LARGE HAIL FOR PARTS OF THE SOUTHEASTERN U.S THIS AFTERNOON INTO TONIGHT. THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE: SOUTHEAST TENNESSEE...NORTHEAST ALABAMA...NORTHERN GEORGIA... WESTERN NORTH CAROLINA AND WESTERN AND CENTRAL SOUTH CAROLINA. SEVERAL INGREDIENTS WILL BE IN PLACE FOR AN OUTBREAK OF SEVERE THUNDERSTORMS IN PARTS OF THE SOUTHEAST THIS AFTERNOON AND EVENING. A DEVELOPING LOW PRESSURE AREA OVER THE OHIO VALLEY IS PRODUCING A STRONG SOUTHWESTERLY FLOW OF VERY MOIST UNSTABLE AIR TO MOVE ACROSS THE SOUTHEAST U. S. TODAY. COUPLED WITH THIS IS AN UNSEASONABLY STRONG UPPER LEVEL JET OF UP TO 150 MPH PLUS VERY FAVORABLE VERTICAL WIND SHEAR PROFILES. CURRENT SEVERE THUNDERSTORM ACTIVITY MOVING ACROSS THE TENNESSEE VALLEY IS EXPECTED TO WEAKEN SOME THIS MORNING BUT IN THE PROCESS WILL PROVIDE A SURFACE BOUNDARY TO FOCUS DEVELOPMENT OF SEVERE STORMS AGAIN DURING THE HEAT OF THE AFTERNOON. ADDITIONAL THUNDERSTORMS SHOULD COMMENCE ACROSS PORTIONS OF EASTERN TENNESSEE/NORTHERN ALABAMA AND GEORGIA THIS AFTERNOON...MOVING RAPIDLY EAST AND SOUTHEAST INTO THE CAROLINAS AND CENTRAL GEORGIA BY THIS EVENING. GIVEN THE AMOUNT OF UNSTABLE AIR AND STRONG WIND FIELDS AT ALL LEVELS...THESE STORMS ARE EXPECTED TO BE CAPABLE OF PRODUCING WIDESPREAD LARGE HAIL AND DAMAGING WINDS ALONG WITH THE POTENTIAL FOR SUPERCELLS AND A FEW INTENSE TORNADOS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. THOSE IN THE THREATENED AREAS ARE URGED TO REVIEW SEVERE WEATHER SAFETY RULES... AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER WATCHES ...WARNINGS AND STATEMENTS.
Local storm report, May 7, 11:09 AM EDT, 1 hour 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1109 AM EDT THU MAY 7 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
842 AM BALL GROUND GA 0.75 INCH HAIL
5/7/98 CHEROKEE
1011 AM 2S ADAIRSVILLE GA 0.75 INCH HAIL
5/7/98 BARTOW DIME TO NICKLE SIZE HAIL
1000 AM PLAINVILLE GA 0.75 INCH HAIL
5/7/98 GORDON DIME TO NICKLE SIZE HAIL
17Local storm report, May 7, 11:09 AM EDT, 1 hour 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1109 AM EDT THU MAY 7 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
842 AM BALL GROUND GA 0.75 INCH HAIL
5/7/98 CHEROKEE
1011 AM 2S ADAIRSVILLE GA 0.75 INCH HAIL
5/7/98 BARTOW DIME TO NICKLE SIZE HAIL
1000 AM PLAINVILLE GA 0.75 INCH HAIL
5/7/98 GORDON DIME TO NICKLE SIZE HAIL
17The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 8:49 AM EDT | Severe Thunderstorm Warning | FFC | Dawson, Forsyth | 36 min |
| May 7, 9:00 AM EDT | Severe Thunderstorm Warning | FFC | Polk | 35 min |
| May 7, 9:08 AM EDT | Severe Thunderstorm Warning | FFC | Lumpkin | 32 min |
| May 7, 9:25 AM EDT | Severe Thunderstorm Warning | FFC | Carroll | 35 min |
| May 7, 9:36 AM EDT | Severe Thunderstorm Warning | FFC | Douglas | 34 min |
| May 7, 9:54 AM EDT | Severe Thunderstorm Warning | FFC | Fulton | 36 min |
| May 7, 9:59 AM EDT | Severe Thunderstorm Warning | FFC | Bartow, Floyd, Gordon | 36 min |
| May 7, 10:14 AM EDT | Severe Thunderstorm Warning | FFC | Cherokee, Pickens | 36 min |
| May 7, 10:30 AM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Rockdale | 50 min |
| May 7, 10:41 AM EDT | Severe Thunderstorm Warning | FFC | Cherokee, Dawson, Forsyth | 34 min |
| May 7, 11:04 AM EDT | Severe Thunderstorm Warning | FFC | Clarke, Jackson | 31 min |
| May 7, 11:06 AM EDT | Severe Thunderstorm Warning | FFC | Madison, Oglethorpe | 34 min |
| May 7, 11:27 AM EDT | Severe Thunderstorm Warning | FFC | Greene, Morgan | 33 min |
| May 7, 11:39 AM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe | 36 min |
| May 7, 12:02 PM EDT | Severe Thunderstorm Warning | FFC | Wilkes | 18 min |
| May 7, 3:23 PM EDT | Tornado Warning | FFC | Fannin | 32 min |
| May 7, 3:34 PM EDT | Tornado Warning | FFC | Union | 36 min |
| May 7, 3:48 PM EDT | Severe Thunderstorm Warning | FFC | Towns | 32 min |
| May 7, 4:02 PM EDT | Tornado Warning | FFC | Towns | 33 min |
| May 7, 4:31 PM EDT | Severe Thunderstorm Warning | FFC | Hall | 49 min |
| May 7, 4:55 PM EDT | Severe Thunderstorm Warning | FFC | Banks | 50 min |
| May 7, 5:23 PM EDT | Severe Thunderstorm Warning | FFC | Bartow | 32 min |
| May 7, 5:36 PM EDT | Severe Thunderstorm Warning | FFC | Dawson, Gilmer, Lumpkin | 34 min |
| May 7, 5:46 PM EDT | Severe Thunderstorm Warning | FFC | Dade, Walker | 49 min |
| May 7, 5:50 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee | 35 min |
| May 7, 6:05 PM EDT | Tornado Warning | FFC | Dade | 20 min |
| May 7, 6:08 PM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe | 47 min |
| May 7, 6:09 PM EDT | Tornado Warning | FFC | Cherokee, Forsyth | 36 min |
| May 7, 6:10 PM EDT | Severe Thunderstorm Warning | FFC | Lumpkin | 35 min |
| May 7, 6:16 PM EDT | Tornado Warning | FFC | Lumpkin | 34 min |
| May 7, 6:19 PM EDT | Tornado Warning | FFC | Walker | 36 min |
| May 7, 6:22 PM EDT | Tornado Warning | FFC | Hall | 33 min |
| May 7, 6:26 PM EDT | Severe Thunderstorm Warning | FFC | Wilkes | 49 min |
| May 7, 6:32 PM EDT | Severe Thunderstorm Warning | FFC | Catoosa, Whitfield | 33 min |
| May 7, 6:41 PM EDT | Tornado Warning | FFC | Banks, Jackson | 34 min |
| May 7, 6:44 PM EDT | Severe Thunderstorm Warning | FFC | Towns | 36 min |
| May 7, 6:49 PM EDT | Severe Thunderstorm Warning | FFC | Barrow | 36 min |
| May 7, 6:51 PM EDT | Tornado Warning | FFC | Barrow, Gwinnett | 34 min |
| May 7, 6:58 PM EDT | Tornado Warning | FFC | Gordon | 32 min |
| May 7, 7:09 PM EDT | Severe Thunderstorm Warning | FFC | Clarke, Madison, Oconee | 51 min |
| May 7, 7:12 PM EDT | Tornado Warning | FFC | Murray | 33 min |
| May 7, 7:14 PM EDT | Tornado Warning | FFC | Chattooga | 36 min |
| May 7, 7:22 PM EDT | Tornado Warning | FFC | Pickens | 33 min |
| May 7, 7:25 PM EDT | Tornado Warning | FFC | Clarke, Oconee | 35 min |
| May 7, 7:36 PM EDT | Tornado Warning | FFC | Floyd | 34 min |
| May 7, 7:43 PM EDT | Tornado Warning | FFC | Cherokee | 32 min |
| May 7, 7:44 PM EDT | Severe Thunderstorm Warning | FFC | Oglethorpe | 51 min |
| May 7, 7:51 PM EDT | Tornado Warning | FFC | Dawson, Forsyth | 34 min |
| May 7, 7:59 PM EDT | Tornado Warning | FFC | Oglethorpe | 36 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1998Every severe thunderstorm warning in 1998
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.