Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 65, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Mar 23, 2012, 7:21 PM EDT for Jefferson County, Georgia. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2012, 7:21 PM EDT (23:21 UTC)
- Expired
- Mar 23, 2012, 7:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
County Jefferson County, GA
The radar
The Robins AFB radar (KJGX), 99 km from the middle of the area, began a volume at 23:20 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, 11.4 hours before the alert went out and 201 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
- 394 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 681 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
314
WUUS52 KFFC 232321
SVRFFC
GAC163-232345-
/O.NEW.KFFC.SV.W.0065.120323T2321Z-120323T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
721 PM EDT FRI MAR 23 2012
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN JEFFERSON COUNTY IN EAST CENTRAL GEORGIA
* UNTIL 745 PM EDT
* AT 716 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
LOUISVILLE...MOVING EAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER AREAS NEAR AND
EAST OF LOUISVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.
&&
LAT...LON 3308 8228 3301 8227 3297 8228 3293 8252
3294 8254 3296 8255 3301 8255 3316 8227
3314 8226
TIME...MOT...LOC 2321Z 248DEG 23KT 3300 8247
$$1 follow-up statement
784
WWUS52 KFFC 232339
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
739 PM EDT FRI MAR 23 2012
GAC163-232348-
/O.EXP.KFFC.SV.W.0065.000000T0000Z-120323T2345Z/
JEFFERSON GA-
739 PM EDT FRI MAR 23 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JEFFERSON COUNTY WILL
BE ALLOWED TO EXPIRE AT 745 PM EDT...
THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER
EXPECTED TO PRODUCE ANY SEVERE WEATHER. GUSTY WINDS...HEAVY RAIN AND
OCCASIONAL CLOUD TO GROUND LIGHTNING WILL REMAIN POSSIBLE ACROSS
AREAS EAST OF LOUISVILLE THROUGH 800 PM EDT.
IF YOU SAW WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.
LAT...LON 3308 8228 3301 8227 3297 8228 3293 8252
3294 8254 3296 8255 3301 8255 3316 8227
3314 8226
TIME...MOT...LOC 2338Z 248DEG 23KT 3304 8235
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:44 PM EDT | Special Weather Statement | FFC | Marion | 31 min |
| Mar 22, 9:09 PM EDT | Special Weather Statement | FFC | Cobb | 36 min |
| Mar 22, 9:41 PM EDT | Special Weather Statement | FFC | Cobb | 34 min |
| Mar 23, 3:05 PM EDT | Special Weather Statement | FFC | Gordon | 25 min |
| Mar 23, 7:12 PM EDT | Special Weather Statement | FFC | Jefferson | 33 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2012Every severe thunderstorm warning in 2012
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.