Alert archive / Georgia / Special Weather Statements in 2011
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 19, 2011, 8:55 PM EDT for Cobb County, Georgia. It was in force for 35 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 19, 2011, 8:55 PM EDT (00:55 UTC)
- Expired
- Aug 19, 2011, 9:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Atlanta, GA
County Cobb County, GA
The radar
The Atlanta radar (KFFC), 75 km from the middle of the area, began a volume at 00:58 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 00:00Z, 0.9 hours before the alert went out and 72 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
- 242 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2109 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
346
WWUS82 KFFC 200055
SPSFFC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
855 PM EDT FRI AUG 19 2011
GAZ021-032-033-045-200130-
855 PM EDT FRI AUG 19 2011
...SIGNIFICANT WEATHER ADVISORY FOR 35 MPH WINDS IN SOUTHERN
CHEROKEE...NORTHEASTERN COBB...NORTHERN DEKALB AND NORTHERN AND
CENTRAL FULTON COUNTIES UNTIL 930 PM EDT...
AT 849 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF SHOWERS AND THUNDERSTORMS EXTENDING FROM WOODSTOCK TO
KENNESAW...MOVING SOUTHEAST AT 10 MPH.
WIND GUSTS OF 35 MPH ARE LIKELY WITH THIS ACTIVITY. THIS CLUSTER OF
SHOWERS AND THUNDERSTORMS CAUSED WIND DAMAGE ACROSS WHITFIELD AND
WALKER COUNTY EARLIER THIS EVENING.
RESIDENTS IN THE NORTH ATLANTA METROPOLITAN AREA SHOULD BE PREPARED
FOR GUSTY WINDS DURING THE NEXT 30 TO 45 MINUTES. THESE WIND GUSTS
MAY BLOW DOWN WEAK OR SMALL TREES AND BLOW ABOUT LOOSE...UNSECURED
OBJECTS.
&&
LAT...LON 3423 8442 3399 8419 3399 8420 3400 8423
3398 8426 3397 8426 3396 8428 3391 8425
3380 8438 3399 8473
TIME...MOT...LOC 0053Z 314DEG 10KT 3406 8451
$$
19The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 10:44 PM EDT | Special Weather Statement | FFC | White | 31 min |
| Aug 20, 1:38 PM EDT | Special Weather Statement | FFC | Clayton, Fayette | 37 min |
| Aug 20, 1:51 PM EDT | Special Weather Statement | FFC | Candler | 24 min |
| Aug 20, 2:39 PM EDT | Special Weather Statement | FFC | Butts, Henry | 36 min |
| Aug 20, 3:04 PM EDT | Special Weather Statement | FFC | Wilkes | 26 min |
| Aug 20, 3:14 PM EDT | Special Weather Statement | FFC | Gwinnett | 31 min |
| Aug 20, 3:40 PM EDT | Special Weather Statement | FFC | Coweta | 35 min |
| Aug 20, 3:46 PM EDT | Special Weather Statement | FFC | Chattahoochee | 29 min |
| Aug 20, 4:02 PM EDT | Special Weather Statement | FFC | Monroe | 43 min |
| Aug 20, 4:09 PM EDT | Special Weather Statement | FFC | Baldwin | 51 min |
| Aug 20, 4:56 PM EDT | Special Weather Statement | FFC | Upson | 49 min |
| Aug 20, 6:35 PM EDT | Special Weather Statement | FFC | Houston, Pulaski | 25 min |
| Aug 20, 7:46 PM EDT | Special Weather Statement | FFC | Cobb | 29 min |
Nearby
Special Weather Statements in Georgia, 2011Every special weather statement in 2011
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.