Alert archive / Georgia / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 40, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Feb 21, 1997, 1:45 PM EST for Clayton County, Fayette County, Georgia. It was in force for 30 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
- Feb 21, 1997, 1:45 PM EST (18:45 UTC)
- Expired
- Feb 21, 1997, 2:15 PM EST
- In force
- 30 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Clayton County, GA, Fayette County, GA
The radar
The Atlanta radar (KFFC), 18 km from the middle of the area, began a volume at 18:48 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 |
|---|---|---|---|
| Feb 21, 1:55 PM EST | Thunderstorm Wind | Fayetteville, GA | |
| Feb 21, 2:00 PM EST | Thunderstorm Wind | Jonesboro, GA |
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 |
|---|---|---|---|
| Feb 21, 1:00 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 6.8 hours before the alert went out and 221 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
- 116 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 589 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 475 m²/s²
- 0-3 km storm-relative helicity
- 530 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 211847 RRA SVRATL GAC063-113-211915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 145 PM EST FRI FEB 21 1997 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 215 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...CLAYTON COUNTY...FAYETTE COUNTY AT 145 PM EST...DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM MOVING THROUGH PEACHTREE CITY. WINDS GUSTED TO 47 MPH AT THE WEATHER SERVICE OFFICE. A FEW PINE TREES HAVE BEEN REPORTED UPROOTED. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE T\ORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. &
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 1:56 PM EST | Severe Thunderstorm Warning | FFC | Fulton | 34 min |
| Feb 21, 2:03 PM EST | Severe Thunderstorm Warning | FFC | DeKalb, Henry, Rockdale | 27 min |
| Feb 21, 2:24 PM EST | Severe Thunderstorm Warning | FFC | Newton, Walton | 36 min |
| Feb 21, 2:44 PM EST | Severe Thunderstorm Warning | FFC | White | 31 min |
| Feb 21, 2:44 PM EST | Severe Thunderstorm Warning | FFC | Banks | 31 min |
| Feb 21, 2:50 PM EST | Severe Thunderstorm Warning | FFC | Barrow, Clarke, Jackson, Oconee | 40 min |
| Feb 21, 2:50 PM EST | Severe Thunderstorm Warning | FFC | Morgan | 40 min |
| Feb 21, 3:03 PM EST | Severe Thunderstorm Warning | FFC | Madison, Oglethorpe | 42 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1997Every severe thunderstorm warning in 1997
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.