Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 343, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 17, 2012, 6:59 PM EDT for Emanuel County, Jefferson County, Georgia. It was in force for 46 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
- Aug 17, 2012, 6:59 PM EDT (22:59 UTC)
- Expired
- Aug 17, 2012, 7:45 PM EDT
- In force
- 46 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Emanuel County, GA, Jefferson County, GA
The radar
The Robins AFB radar (KJGX), 93 km from the middle of the area, began a volume at 22:58 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, 11.0 hours before the alert went out and 211 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
- 944 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -68 m²/s²
- 0-3 km storm-relative helicity
- -86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
239
WUUS52 KFFC 172259
SVRFFC
GAC107-163-172345-
/O.NEW.KFFC.SV.W.0343.120817T2259Z-120817T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
659 PM EDT FRI AUG 17 2012
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN EMANUEL COUNTY IN EAST CENTRAL GEORGIA
SOUTH CENTRAL JEFFERSON COUNTY IN EAST CENTRAL GEORGIA
* UNTIL 745 PM EDT
* AT 658 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 WADLEY...
MOVING SOUTHEAST AT 10 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SUMMERTOWN AND SWAINSBORO.
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 3254 8242 3270 8249 3272 8245 3276 8244
3282 8252 3284 8252 3291 8235 3289 8229
3283 8231 3281 8222 3282 8215 3270 8209
TIME...MOT...LOC 2300Z 334DEG 7KT 3279 8240
$$2 follow-up statements
393
WWUS52 KFFC 172325
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
725 PM EDT FRI AUG 17 2012
GAC107-163-172345-
/O.CON.KFFC.SV.W.0343.000000T0000Z-120817T2345Z/
EMANUEL GA-JEFFERSON GA-
725 PM EDT FRI AUG 17 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTH CENTRAL JEFFERSON AND NORTHERN EMANUEL COUNTIES...
AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR
BLUNDALE...MOVING SOUTHEAST AT 10 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THREE
POINTS...MODOC...DELLWOOD...CANOOCHEE...SUMMERTOWN AND SWAINSBORO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.
&&
LAT...LON 3254 8242 3270 8249 3272 8245 3276 8244
3282 8252 3284 8252 3291 8235 3289 8229
3283 8231 3281 8222 3282 8215 3270 8209
TIME...MOT...LOC 2325Z 334DEG 7KT 3275 8241
$$472
WWUS52 KFFC 172339
SVSFFC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
739 PM EDT FRI AUG 17 2012
GAC107-163-172346-
/O.EXP.KFFC.SV.W.0343.000000T0000Z-120817T2345Z/
EMANUEL GA-JEFFERSON GA-
739 PM EDT FRI AUG 17 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL JEFFERSON AND
NORTHERN EMANUEL COUNTIES EXPIRES AT 745 PM EDT...
AT 734 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR
BLUNDALE...MOVING SOUTHEAST AT 10 MPH.
FREQUENT LIGHTNING...HEAVY RAINS...AND WINDS UP TO 35 MPH ARE STILL
POSSIBLE WITH THIS STRONG THUNDERSTORM AS IT MOVES TOWARDS
SWAINSBORO.
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 3254 8242 3270 8249 3272 8245 3276 8244
3282 8252 3284 8252 3291 8235 3289 8229
3283 8231 3281 8222 3282 8215 3270 8209
TIME...MOT...LOC 2336Z 334DEG 7KT 3273 8240
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 10:46 PM EDT | Special Weather Statement | FFC | Floyd | 29 min |
| Aug 17, 2:00 AM EDT | Special Weather Statement | FFC | Catoosa, Dade, Murray, Walker, Whitfield | 60 min |
| Aug 17, 1:32 PM EDT | Special Weather Statement | FFC | Henry | 28 min |
| Aug 17, 2:48 PM EDT | Special Weather Statement | FFC | Greene | 57 min |
| Aug 17, 6:34 PM EDT | Special Weather Statement | FFC | Jefferson | 26 min |
| Aug 17, 6:52 PM EDT | Special Weather Statement | FFC | Jefferson | 38 min |
| Aug 17, 7:04 PM EDT | Special Weather Statement | FFC | Johnson | 26 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.