Alert archive / Georgia / Special Weather Statements in 2011
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 7, 2011, 7:39 PM EDT for Barrow County, Jackson County, Walton County, Georgia. It was in force for 36 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, 2011, 7:39 PM EDT (23:39 UTC)
- Expired
- Aug 7, 2011, 8:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Atlanta, GA
Counties Barrow County, GA, Jackson County, GA, Walton County, GA
The radar
The Atlanta radar (KFFC), 108 km from the middle of the area, began a volume at 23:42 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, 11.7 hours before the alert went out and 104 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
- 1453 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 854 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
386
WWUS82 KFFC 072339
SPSFFC
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
739 PM EDT SUN AUG 7 2011
GAZ025-034>037-047-080015-
739 PM EDT SUN AUG 7 2011
...SIGNIFICANT WEATHER ADVISORY FOR EXCESSIVE LIGHTNING AND HEAVY
RAIN IN WALTON...NORTHERN OCONEE...BARROW...NORTHERN
CLARKE...GWINNETT AND JACKSON COUNTIES UNTIL 815 PM EDT...
AT 734 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER COUNTY LINE...MOVING SOUTHEAST AT 25 MPH.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS THEY MOVE
ACROSS WALTON...OCONEE...BARROW...CLARKE...GWINNETT AND JACKSON
COUNTIES THROUGH 815 PM EDT. SOME LOCATIONS IN THE PATH OF THESE
STORMS INCLUDE WINDSOR...CHATEAU ELAN...COUNTY LINE...THOMPSONS
MILL...CARL...AUBURN...HARBIN...HOG MOUNTAIN...LAWRENCEVILLE...
DACULA...HOSCHTON...BRASELTON...PENDERGRASS...TALMO AND BOLD SPRINGS.
BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.
&&
LAT...LON 3400 8334 3375 8374 3400 8406 3411 8389
3410 8386 3422 8371
TIME...MOT...LOC 2338Z 303DEG 22KT 3403 8377
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:43 PM EDT | Special Weather Statement | FFC | Dawson, Gilmer, Pickens | 32 min |
| Aug 7, 6:00 PM EDT | Severe Thunderstorm Warning | FFC | Dawson, Gilmer, Pickens | 30 min |
| Aug 7, 6:28 PM EDT | Special Weather Statement | FFC | Dawson, Pickens | 32 min |
| Aug 7, 6:39 PM EDT | Severe Thunderstorm Warning | FFC | Cherokee, Dawson, Forsyth, Pickens | 36 min |
| Aug 7, 7:08 PM EDT | Special Weather Statement | FFC | Hall | 37 min |
| Aug 7, 7:12 PM EDT | Special Weather Statement | FFC | Gilmer | 33 min |
| Aug 7, 7:19 PM EDT | Special Weather Statement | FFC | Forsyth | 26 min |
| Aug 7, 7:54 PM EDT | Special Weather Statement | FFC | Dawson, Forsyth | 36 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.