Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

August 7, 2012Toombs County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 7, 2012, 4:15 PM EDT for Toombs County, Georgia. It was in force for 30 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, 2012, 4:15 PM EDT (20:15 UTC)
Expired
Aug 7, 2012, 4:45 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA

County Toombs County, GA

The radar

The Robins AFB radar (KJGX), 123 km from the middle of the area, began a volume at 20:15 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

Jacksonville, FL (KJAX), launched 12:00Z, 8.3 hours before the alert went out and 177 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, Jacksonville, FL at 12:00Z on 2012-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 355 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, Jacksonville, FL at 12:00Z on 2012-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
355 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
37 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.

740 
WWUS82 KFFC 072015
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
415 PM EDT TUE AUG 7 2012

GAZ113-072045-
415 PM EDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN TOOMBS COUNTY UNTIL 445 PM EDT...

AT 411 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR JOHNSON CORNER...MOVING NORTHEAST AT 5 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
TOOMBS COUNTY THROUGH 445 PM EDT. SOME LOCATIONS IN THE PATH OF THIS
STORM INCLUDE TOOMBS CENTRAL...JOHNSON CORNER...GRAYS LANDING...
ENGLISH EDDY...CEDAR CROSSING...SOUTH THOMPSON...NEW BRANCH...
PONDEROSA...OHOOPEE...SANTA CLAUS AND LYONS. HEAVY DOWNPOURS WILL
CAUSE PONDING OF WATER ON ROADWAYS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3193 8228 3193 8233 3194 8238 3195 8239
      3195 8240 3197 8247 3225 8230 3220 8218
      3218 8218 3191 8222 3191 8225
TIME...MOT...LOC 2015Z 208DEG 6KT 3205 8227

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 2:11 AM EDTSpecial Weather StatementFFCUnion34 min
Aug 7, 2:21 PM EDTSpecial Weather StatementFFCCherokee24 min
Aug 7, 3:36 PM EDTSpecial Weather StatementFFCCobb39 min
Aug 7, 4:32 PM EDTSpecial Weather StatementFFCMontgomery, Telfair, Wheeler28 min
Aug 7, 4:40 PM EDTSpecial Weather StatementFFCWilkes35 min
Aug 7, 4:44 PM EDTSpecial Weather StatementFFCToombs16 min
Aug 7, 4:52 PM EDTSpecial Weather StatementFFCUnion38 min
Aug 7, 4:58 PM EDTSpecial Weather StatementFFCMontgomery, Telfair, Toombs, Wheeler32 min
Aug 7, 5:02 PM EDTSevere Thunderstorm WarningFFCMontgomery, Wheeler43 min
Aug 7, 5:09 PM EDTSpecial Weather StatementFFCWilkes36 min
Aug 7, 5:20 PM EDTSpecial Weather StatementFFCEmanuel25 min
Aug 7, 5:49 PM EDTSpecial Weather StatementFFCLaurens26 min
Aug 7, 5:59 PM EDTSpecial Weather StatementFFCJohnson31 min
Aug 7, 6:22 PM EDTSpecial Weather StatementFFCJohnson23 min
Aug 7, 6:57 PM EDTSpecial Weather StatementFFCGlascock33 min
Aug 7, 7:05 PM EDTSpecial Weather StatementFFCWashington25 min
Aug 7, 7:17 PM EDTSpecial Weather StatementFFCHall28 min
Aug 7, 7:34 PM EDTSpecial Weather StatementFFCGlascock, Washington86 min
Aug 7, 7:56 PM EDTSpecial Weather StatementFFCBanks, Madison49 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.