Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

August 6, 2012Houston County, Peach County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 6, 2012, 4:21 PM EDT for Houston County, Peach County, Georgia. It was in force for 24 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, 4:21 PM EDT (20:21 UTC)
Expired
Aug 6, 2012, 4:45 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA

Counties Houston County, GA, Peach County, GA

The radar

The Robins AFB radar (KJGX), 27 km from the middle of the area, began a volume at 20:21 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, 8.4 hours before the alert went out and 113 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.

714 
WWUS82 KFFC 062021
SPSFFC

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

GAZ081-082-094-095-062045-
421 PM EDT MON AUG 6 2012

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN PEACH...BIBB...
CRAWFORD AND HOUSTON COUNTIES UNTIL 445 PM EDT...

AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER LAKEWOOD...MOVING NORTH AT 15 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE OCCASIONAL CLOUD TO GROUND 
LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS 
PEACH...BIBB...CRAWFORD AND HOUSTON COUNTIES THROUGH 445 PM EDT. SOME
LOCATIONS IN THE PATH OF THIS STORM INCLUDE HOUSTON LAKE...SAND 
BED...KATHLEEN...BONAIRE...PERRY...LAKEWOOD...MIAMI 
VALLEY...POWERVILLE...ROBINS AIR FORCE BASE...WARNER 
ROBINS...CENTERVILLE...ELBERTA...BYRON...MIDDLE GEORGIA REGIONAL 
AIRPORT AND SKIPPERTON. HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER 
ON ROADWAYS.

&&

LAT...LON 3246 8382 3280 8386 3280 8355 3276 8355
      3274 8360 3271 8360 3270 8361 3267 8360
      3266 8358 3266 8357 3265 8355 3245 8356
TIME...MOT...LOC 2021Z 179DEG 15KT 3260 8369

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 2:26 PM EDTSpecial Weather StatementFFCWilkes34 min
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, 4:59 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.