Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

February 23, 2012Lumpkin County, White County, Georgia

NWS Atlanta, GA issued this special weather statement at Feb 23, 2012, 12:58 AM EST for Lumpkin County, White County, Georgia. It was in force for 32 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
Feb 23, 2012, 12:58 AM EST (05:58 UTC)
Expired
Feb 23, 2012, 1:30 AM EST
In force
32 min
Issued by
NWS Atlanta, GA

Counties Lumpkin County, GA, White County, GA

The radar

The Greer radar (KGSP), 149 km from the middle of the area, began a volume at 05:59 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, 6.0 hours before the alert went out and 155 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2012-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2012-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 226 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
13 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1264 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
362 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

828 
WWUS82 KFFC 230558
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1258 AM EST THU FEB 23 2012

GAZ006-008-015-016-230630-
1258 AM EST THU FEB 23 2012

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL AND 40 MPH WINDS
IN WHITE...UNION...LUMPKIN AND FANNIN COUNTIES UNTIL 130 AM EST...

AT 1253 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
STRONG THUNDERSTORM NEAR STOVER CREEK SHELTER...NORTH OF AMICALOLA 
FALLS...MOVING EAST AT 50 MPH.

WIND GUSTS OF 40 MPH ARE LIKELY AS THIS STORM MOVES ACROSS WHITE...
UNION...LUMPKIN AND FANNIN COUNTIES THROUGH 130 AM EST. SOME
LOCATIONS IN THE PATH OF THE STORM INCLUDE CAMP MERRILL...HAWK
MOUNTAIN SHELTER...GADDISTOWN...STOVER CREEK SHELTER...MARGRET...
GOOCH MOUNTAIN SHELTER...WOODS HOLE SHELTER...SUCHES...BLOOD MOUNTAIN
SHELTER...TURNERS CORNER...PORTER SPRINGS...WHITLEY GAP SHELTER...
CAMP COLEMAN LAKE...SMITHGALL WOODS CONSERVATION AREA AND UNICOI
STATE PARK.

&&

LAT...LON 3475 8363 3473 8362 3465 8365 3463 8363
      3460 8364 3454 8361 3453 8362 3457 8419
      3463 8419 3467 8424 3476 8424
TIME...MOT...LOC 0558Z 273DEG 46KT 3466 8410

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 22, 7:44 PM ESTSpecial Weather StatementFFCDade46 min
Feb 22, 8:15 PM ESTSpecial Weather StatementFFCCatoosa30 min
Feb 22, 8:24 PM ESTSpecial Weather StatementFFCWalker51 min
Feb 22, 9:19 PM ESTSpecial Weather StatementFFCWalker, Whitfield26 min
Feb 22, 9:41 PM ESTSpecial Weather StatementFFCFloyd34 min
Feb 22, 9:53 PM ESTSevere Thunderstorm WarningFFCFloyd, Polk37 min
Feb 22, 10:36 PM ESTSpecial Weather StatementFFCBartow, Cherokee, Pickens24 min
Feb 22, 11:10 PM ESTSpecial Weather StatementFFCCobb35 min
Feb 22, 11:24 PM ESTSpecial Weather StatementFFCBarrow, Forsyth, Hall36 min
Feb 22, 11:32 PM ESTSevere Thunderstorm WarningFFCHall, Jackson28 min
Feb 22, 11:52 PM ESTSevere Thunderstorm WarningFFCBarrow, Clarke, Hall, Jackson, Madison23 min
Feb 23, 12:09 AM ESTSevere Thunderstorm WarningFFCClarke, Jackson, Madison, Oglethorpe36 min
Feb 23, 12:46 AM ESTSpecial Weather StatementFFCOglethorpe, Wilkes29 min
Feb 23, 2:53 PM ESTWind AdvisoryFFCCatoosa, Dade, Dawson, Fannin, Gilmer, Lumpkin and 6 more28 hr

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.