Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

August 6, 2012Wilkes County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 6, 2012, 2:26 PM EDT for Wilkes County, Georgia. It was in force for 34 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 6, 2012, 2:26 PM EDT (18:26 UTC)
Expired
Aug 6, 2012, 3:00 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA

County Wilkes County, GA

The radar

The Robins AFB radar (KJGX), 128 km from the middle of the area, began a volume at 18:29 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, 6.4 hours before the alert went out and 175 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 12:00Z on 2012-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 90 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 12:00Z on 2012-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
90 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
528 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
2 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.

415 
WWUS82 KFFC 061826
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
226 PM EDT MON AUG 6 2012

GAZ039-061900-
226 PM EDT MON AUG 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN WILKES COUNTY UNTIL
300 PM EDT...

AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER ROCKY CREEK FIRE DEPT....MOVING NORTH AT 5
MPH.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
WILKES COUNTY...INCLUDING AREAS AROUND LUNDBERG...ROCKY CREEK FIRE
DEPT....FICKLIN...AONIA...WASHINGTON...FLORAL HILL AND METASVILLE.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS ARE SUBJECT TO MINOR FLOODING.

&&

LAT...LON 3364 8255 3363 8260 3360 8264 3361 8265
      3360 8268 3362 8269 3361 8271 3362 8275
      3366 8282 3388 8272 3383 8258 3370 8251
TIME...MOT...LOC 1826Z 202DEG 6KT 3367 8266

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 3:30 PM EDTSpecial Weather StatementFFCWilkes30 min
Aug 6, 3:43 PM EDTSpecial Weather StatementFFCTreutlen32 min
Aug 6, 4:15 PM EDTSpecial Weather StatementFFCTreutlen60 min
Aug 6, 4:21 PM EDTSpecial Weather StatementFFCHouston, Peach24 min
Aug 6, 4:59 PM EDTSpecial Weather StatementFFCLaurens31 min
Aug 6, 5:18 PM EDTSpecial Weather StatementFFCJones27 min
Aug 6, 6:15 PM EDTSpecial Weather StatementFFCBaldwin, Wilkinson30 min
Aug 6, 6:48 PM EDTSpecial Weather StatementFFCWilkinson57 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.