Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

April 17, 2012Banks County, Hall County, Jackson County, Georgia

NWS Atlanta, GA issued this special weather statement at Apr 17, 2012, 4:04 PM EDT for Banks County, Hall County, Jackson County, Georgia. It was in force for 26 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: Apr 17, 2012, 4:04 PM EDT (20:04 UTC)
Expired: Apr 17, 2012, 4:30 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA

Counties Banks County, GA, Hall County, GA, Jackson County, GA

The radar

The Greer radar (KGSP), 134 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 143 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 371 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 618 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

402 
WWUS82 KFFC 172004
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
404 PM EDT TUE APR 17 2012

GAZ023>025-172030-
404 PM EDT TUE APR 17 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN BANKS...HALL AND JACKSON COUNTIES UNTIL 430 PM EDT...

AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM LULA TO MAYSVILLE...MOVING NORTHEAST AT 15
MPH.

WIND GUSTS OF 40 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS BANKS...
HALL AND JACKSON COUNTIES THROUGH 430 PM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE ARCADE...APPLE VALLEY...JEFFERSON...
PEACH STATE SPEEDWAY...COMMERCE...PENDERGRASS...TALMO...BANKS
CROSSING...MAYSVILLE...CANDLER...CHESTNUT MOUNTAIN...ROAD
ATLANTA-LANIER SPEEDWAY...OAKWOOD...GILLSVILLE AND GAINESVILLE.

&&

LAT...LON 3444 8362 3450 8353 3448 8343 3446 8339
      3443 8337 3435 8339 3431 8338 3406 8356
      3419 8396 3451 8377 3451 8366
TIME...MOT...LOC 2004Z 214DEG 14KT 3434 8371 3430 8353

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 17, 3:05 PM EDT	Special Weather Statement	FFC	Paulding	25 min
Apr 17, 3:10 PM EDT	Special Weather Statement	FFC	Union	35 min
Apr 17, 3:26 PM EDT	Special Weather Statement	FFC	Bartow	34 min
Apr 17, 4:13 PM EDT	Special Weather Statement	FFC	Bartow, Paulding	32 min
Apr 17, 4:26 PM EDT	Special Weather Statement	FFC	DeKalb	34 min
Apr 17, 4:27 PM EDT	Special Weather Statement	FFC	Banks	18 min
Apr 17, 4:37 PM EDT	Special Weather Statement	FFC	Carroll	38 min
Apr 17, 4:43 PM EDT	Special Weather Statement	FFC	Cherokee, Pickens	32 min
Apr 17, 5:12 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Dawson, Forsyth, Pickens	48 min
Apr 17, 5:19 PM EDT	Special Weather Statement	FFC	Towns, White	26 min
Apr 17, 5:22 PM EDT	Special Weather Statement	FFC	Coweta	23 min
Apr 17, 5:35 PM EDT	Special Weather Statement	FFC	Douglas	25 min
Apr 17, 5:44 PM EDT	Special Weather Statement	FFC	Barrow	31 min
Apr 17, 6:00 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Lumpkin	45 min
Apr 17, 6:02 PM EDT	Special Weather Statement	FFC	Douglas	28 min
Apr 17, 6:10 PM EDT	Special Weather Statement	FFC	Hall	35 min
Apr 17, 6:15 PM EDT	Special Weather Statement	FFC	DeKalb	30 min
Apr 17, 6:39 PM EDT	Special Weather Statement	FFC	DeKalb	36 min
Apr 17, 6:41 PM EDT	Special Weather Statement	FFC	Hall, Lumpkin, White	34 min
Apr 17, 7:00 PM EDT	Severe Thunderstorm Warning	FFC	Banks	45 min

Nearby

Special Weather Statements in Georgia, 2012 Every 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.