Alert archive / Georgia / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 344, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 24, 2012, 1:18 AM EDT for 4 counties in Georgia. It was in force for 42 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 24, 2012, 1:18 AM EDT (05:18 UTC)
- Expired
- Aug 24, 2012, 2:00 AM EDT
- In force
- 42 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
Counties Dawson County, GA, Forsyth County, GA, Hall County, GA, Lumpkin County, GA
The radar
The Atlanta radar (KFFC), 128 km from the middle of the area, began a volume at 05:18 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 24, 1:25 AM EDT | HAIL 1 | 5 Wnw Gainesville, GA | THE PUBLIC CALLED IN A REPORT OF QUARTER SIZED HAIL ONGOING NEAR GAINESVILLE. |
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 00:00Z, 5.3 hours before the alert went out and 125 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
- 516 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1473 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
742 WUUS52 KFFC 240518 SVRFFC GAC085-117-139-187-240600- /O.NEW.KFFC.SV.W.0344.120824T0518Z-120824T0600Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 118 AM EDT FRI AUG 24 2012 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN DAWSON COUNTY IN NORTH CENTRAL GEORGIA NORTHERN FORSYTH COUNTY IN NORTH CENTRAL GEORGIA WESTERN HALL COUNTY IN NORTH CENTRAL GEORGIA SOUTHEASTERN LUMPKIN COUNTY IN NORTH CENTRAL GEORGIA * UNTIL 200 AM EDT * AT 113 AM 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 8 MILES SOUTHEAST OF DAHLONEGA...MOVING SOUTHWEST AT 20 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GAINESVILLE...OAKWOOD...DAWSONVILLE AND FLOWERY BRANCH. 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 3445 8372 3411 8390 3432 8426 3457 8396 TIME...MOT...LOC 0518Z 045DEG 16KT 3442 8393 $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 12:46 AM EDT | Special Weather Statement | FFC | Hall | 44 min |
| Aug 24, 1:12 AM EDT | Flash Flood Warning | FFC | Banks, Hall, Lumpkin, White | 6 hr |
| Aug 24, 2:06 AM EDT | Special Weather Statement | FFC | Forsyth | 39 min |
| Aug 24, 2:36 AM EDT | Special Weather Statement | FFC | Gwinnett | 39 min |
| Aug 24, 4:09 PM EDT | Special Weather Statement | FFC | Union | 36 min |
| Aug 24, 4:46 PM EDT | Special Weather Statement | FFC | Union | 29 min |
| Aug 24, 4:50 PM EDT | Special Weather Statement | FFC | Fannin | 25 min |
| Aug 24, 4:55 PM EDT | Special Weather Statement | FFC | Towns | 35 min |
| Aug 24, 5:37 PM EDT | Special Weather Statement | FFC | Fannin | 23 min |
| Aug 24, 6:04 PM EDT | Special Weather Statement | FFC | Fannin | 26 min |
| Aug 24, 6:21 PM EDT | Special Weather Statement | FFC | Douglas | 24 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.