Alert archive / Georgia / Special Weather Statements in 2012
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 3, 2012, 6:42 PM EDT for DeKalb County, Gwinnett County, Georgia. It was in force for 33 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 3, 2012, 6:42 PM EDT (22:42 UTC)
- Expired
- Aug 3, 2012, 7:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
Counties DeKalb County, GA, Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 68 km from the middle of the area, began a volume at 22:44 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, 10.7 hours before the alert went out and 64 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
- 115 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 833 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
172
WWUS82 KFFC 032242
SPSFFC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
642 PM EDT FRI AUG 3 2012
GAZ034-045-046-032315-
642 PM EDT FRI AUG 3 2012
...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL AND 40 MPH WINDS
IN ROCKDALE...DEKALB AND GWINNETT COUNTIES UNTIL 715 PM EDT...
AT 639 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM TUCKER TO BELMONT...MOVING EAST AT 5 MPH.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE DIME SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS THEY MOVE
ACROSS ROCKDALE...DEKALB AND GWINNETT COUNTIES THROUGH 715 PM EDT.
SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE NORCROSS...
SNAPFINGER...PINE LAKE...SCOTTDALE...AVONDALE ESTATES...CLARKSTON...
TUCKER...BELMONT...STONE MOUNTAIN...LILBURN...CENTERVILLE...PLEASANT
HILL...LAKEVIEW ESTATES...CONYERS AND SNELLVILLE. HEAVY DOWNPOURS
WILL CAUSE PONDING OF WATER ON ROADWAYS.
&&
LAT...LON 3397 8398 3381 8401 3365 8399 3368 8427
3382 8427 3397 8422
TIME...MOT...LOC 2242Z 270DEG 5KT 3388 8418 3381 8419
3374 8418
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:05 PM EDT | Flash Flood Warning | FFC | DeKalb, Fulton | 4 hr |
| Aug 2, 8:53 PM EDT | Special Weather Statement | FFC | Spalding | 52 min |
| Aug 3, 5:35 PM EDT | Special Weather Statement | FFC | Cobb | 40 min |
| Aug 3, 6:11 PM EDT | Special Weather Statement | FFC | Union | 34 min |
| Aug 3, 6:51 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Gwinnett, Rockdale, Walton | 39 min |
| Aug 3, 7:36 PM EDT | Special Weather Statement | FFC | Fayette | 39 min |
| Aug 3, 7:44 PM EDT | Severe Thunderstorm Warning | FFC | Clayton, DeKalb, Fayette, Fulton, Henry | 46 min |
| Aug 3, 7:59 PM EDT | Special Weather Statement | FFC | Gwinnett | 46 min |
Nearby
Special Weather Statements in Georgia, 2012Every special weather statement 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.