Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 340, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 14, 2012, 5:21 PM EDT for 6 counties in Georgia. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 14, 2012, 5:21 PM EDT (21:21 UTC)
- Expired
- Aug 14, 2012, 6:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Bleckley County, GA, Johnson County, GA, Laurens County, GA, Twiggs County, GA, Washington County, GA, Wilkinson County, GA
The radar
The Robins AFB radar (KJGX), 31 km from the middle of the area, began a volume at 21:24 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 |
|---|---|---|---|
| Aug 14, 5:40 PM EDT | TSTM WND DMG | 5 E Irwinton, GA | NUMEROUS TREES AND POWER LINES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.4 hours before the alert went out and 154 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
- 546 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1220 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
502 WUUS52 KFFC 142121 SVRFFC GAC023-167-175-289-303-319-142200- /O.NEW.KFFC.SV.W.0340.120814T2121Z-120814T2200Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 521 PM EDT TUE AUG 14 2012 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME NORTHEASTERN BLECKLEY COUNTY IN CENTRAL GEORGIA NORTHWESTERN LAURENS COUNTY IN CENTRAL GEORGIA EXTREME EAST CENTRAL TWIGGS COUNTY IN CENTRAL GEORGIA SOUTHERN WILKINSON COUNTY IN CENTRAL GEORGIA NORTHWESTERN JOHNSON COUNTY IN EAST CENTRAL GEORGIA SOUTHWESTERN WASHINGTON COUNTY IN EAST CENTRAL GEORGIA * UNTIL 600 PM EDT * AT 520 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 6 MILES NORTH OF DANVILLE...MOVING EAST AT 20 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MONTROSE...DUDLEY...IRWINTON...TOOMSBORO...EAST DUBLIN...DUBLIN AND OCONEE. 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 3292 8289 3253 8285 3254 8324 3279 8329 TIME...MOT...LOC 2122Z 252DEG 17KT 3269 8323 $$
1 follow-up statement
307 WWUS52 KFFC 142133 SVSFFC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 533 PM EDT TUE AUG 14 2012 GAC023-289-142143- /O.CAN.KFFC.SV.W.0340.000000T0000Z-120814T2200Z/ TWIGGS GA-BLECKLEY GA- 533 PM EDT TUE AUG 14 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHEASTERN BLECKLEY AND EXTREME EAST CENTRAL TWIGGS COUNTIES IS CANCELLED... . IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX. LAT...LON 3255 8320 3279 8329 3292 8289 3253 8285 TIME...MOT...LOC 2133Z 252DEG 17KT 3271 8317 $$ GAC167-175-303-319-142200- /O.CON.KFFC.SV.W.0340.000000T0000Z-120814T2200Z/ WASHINGTON GA-LAURENS GA-JOHNSON GA-WILKINSON GA- 533 PM EDT TUE AUG 14 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR SOUTHERN WILKINSON...NORTHWESTERN JOHNSON...NORTHWESTERN LAURENS AND SOUTHWESTERN WASHINGTON COUNTIES... AT 529 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND DESTRUCTIVE WINDS UP TO 70 MPH. THIS STORM WAS LOCATED 6 MILES WEST OF NICKLESVILLE...MOVING EAST AT 20 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO IRWINTON...CHAPPELLS MILL...TOOMSBORO...EAST DUBLIN...DUBLIN AND OCONEE. 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 3255 8320 3279 8329 3292 8289 3253 8285 TIME...MOT...LOC 2133Z 252DEG 17KT 3271 8317 $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 3:11 AM EDT | Special Weather Statement | FFC | Bartow, Carroll, Haralson, Heard, Paulding, Polk | 79 min |
| Aug 14, 8:50 AM EDT | Special Weather Statement | FFC | Coweta, Fayette, Harris, Heard, Meriwether, Muscogee and 1 more | 25 min |
| Aug 14, 9:12 AM EDT | Special Weather Statement | FFC | Clayton, Fayette | 33 min |
| Aug 14, 9:14 AM EDT | Special Weather Statement | FFC | Talbot | 31 min |
| Aug 14, 9:17 AM EDT | Special Weather Statement | FFC | Polk | 28 min |
| Aug 14, 3:04 PM EDT | Special Weather Statement | FFC | Marion | 41 min |
| Aug 14, 3:10 PM EDT | Severe Thunderstorm Warning | FFC | Macon, Marion, Schley, Taylor | 50 min |
| Aug 14, 3:16 PM EDT | Special Weather Statement | FFC | Stewart | 44 min |
| Aug 14, 3:42 PM EDT | Severe Thunderstorm Warning | FFC | Bibb, Crawford, Macon, Peach, Taylor | 48 min |
| Aug 14, 4:21 PM EDT | Severe Thunderstorm Warning | FFC | Bibb, Crawford, Houston, Jones, Peach, Twiggs and 1 more | 39 min |
| Aug 14, 4:34 PM EDT | Severe Thunderstorm Warning | FFC | Dooly, Houston, Pulaski | 41 min |
| Aug 14, 5:01 PM EDT | Severe Thunderstorm Warning | FFC | Bleckley, Houston, Laurens, Twiggs, Wilkinson | 29 min |
| Aug 14, 5:46 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel, Glascock, Jefferson, Johnson, Laurens, Washington | 59 min |
| Aug 14, 6:25 PM EDT | Severe Thunderstorm Warning | FFC | Glascock, Hancock, Jefferson, Warren, Washington | 35 min |
| Aug 14, 6:49 PM EDT | Special Weather Statement | FFC | Jefferson | 11 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.