Alert archive / Georgia / Special Weather Statements in 2012
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 7, 2012, 3:36 PM EDT for Cobb County, Georgia. It was in force for 39 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 7, 2012, 3:36 PM EDT (19:36 UTC)
- Expired
- Aug 7, 2012, 4:15 PM EDT
- In force
- 39 min
- Issued by
- NWS Atlanta, GA
County Cobb County, GA
The radar
The Atlanta radar (KFFC), 77 km from the middle of the area, began a volume at 19:35 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, 7.6 hours before the alert went out and 75 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
- 717 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 568 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
666
WWUS82 KFFC 071936
SPSFFC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
336 PM EDT TUE AUG 7 2012
GAZ032-033-072015-
336 PM EDT TUE AUG 7 2012
...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN COBB AND NORTH
FULTON COUNTIES UNTIL 415 PM EDT...
AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
NEARLY STATIONARY THUNDERSTORMS FROM ALPHARETTA TO MARIETTA.
RAINFALL AMOUNTS ESTIMATED BETWEEN ONE TO ONE AND A HALF INCHES HAVE
FALLEN ACROSS COBB AND NORTHERN FULTON COUNTIES THIS
AFTERNOON...INCLUDING AREAS AROUND SANDY SPRINGS...ROSWELL...
ALPHARETTA...JIM R MILLER PARK...MOUNT BETHEL...SANDY PLAINS...
WHITE WATER PARK...DOBBINS AIR RESERVE BASE...VININGS...SMYRNA...
MARIETTA...MOUNTAIN PARK...BIRMINGHAM...AND MILTON. DRIVERS SHOULD
USE CAUTION AS INTENSE RAINFALL WILL REDUCE VISIBILITIES. PONDING OF
WATER ON ROADWAYS IS ALSO LIKELY.
&&
LAT...LON 3404 8474 3408 8462 3407 8442 3410 8442
3413 8436 3417 8435 3419 8426 3411 8426
3406 8417 3396 8432 3397 8434 3394 8434
3381 8454 3403 8474
TIME...MOT...LOC 1933Z 135DEG 0KT 3410 8431 3399 8454
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:11 AM EDT | Special Weather Statement | FFC | Union | 34 min |
| Aug 7, 2:21 PM EDT | Special Weather Statement | FFC | Cherokee | 24 min |
| Aug 7, 4:15 PM EDT | Special Weather Statement | FFC | Toombs | 30 min |
| Aug 7, 4:32 PM EDT | Special Weather Statement | FFC | Montgomery, Telfair, Wheeler | 28 min |
| Aug 7, 4:40 PM EDT | Special Weather Statement | FFC | Wilkes | 35 min |
| Aug 7, 4:44 PM EDT | Special Weather Statement | FFC | Toombs | 16 min |
| Aug 7, 4:52 PM EDT | Special Weather Statement | FFC | Union | 38 min |
| Aug 7, 4:58 PM EDT | Special Weather Statement | FFC | Montgomery, Telfair, Toombs, Wheeler | 32 min |
| Aug 7, 5:02 PM EDT | Severe Thunderstorm Warning | FFC | Montgomery, Wheeler | 43 min |
| Aug 7, 5:09 PM EDT | Special Weather Statement | FFC | Wilkes | 36 min |
| Aug 7, 5:20 PM EDT | Special Weather Statement | FFC | Emanuel | 25 min |
| Aug 7, 5:49 PM EDT | Special Weather Statement | FFC | Laurens | 26 min |
| Aug 7, 5:59 PM EDT | Special Weather Statement | FFC | Johnson | 31 min |
| Aug 7, 6:22 PM EDT | Special Weather Statement | FFC | Johnson | 23 min |
| Aug 7, 6:57 PM EDT | Special Weather Statement | FFC | Glascock | 33 min |
| Aug 7, 7:05 PM EDT | Special Weather Statement | FFC | Washington | 25 min |
| Aug 7, 7:17 PM EDT | Special Weather Statement | FFC | Hall | 28 min |
| Aug 7, 7:34 PM EDT | Special Weather Statement | FFC | Glascock, Washington | 86 min |
| Aug 7, 7:56 PM EDT | Special Weather Statement | FFC | Banks, Madison | 49 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.