Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

March 31, 2012Chattahoochee County, Georgia

NWS Atlanta, GA issued this special weather statement at Mar 31, 2012, 7:51 AM EDT for Chattahoochee 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
Mar 31, 2012, 7:51 AM EDT (11:51 UTC)
Expired
Mar 31, 2012, 8:15 AM EDT
In force
24 min
Issued by
NWS Atlanta, GA

County Chattahoochee County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.9 hours before the alert went out and 121 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 2012-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 563 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 2012-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.19395878Sfc1 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
563 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
708 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

899 
WWUS82 KFFC 311151 CCA
SPSFFC

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
751 AM EDT SAT MAR 31 2012

GAZ090-091-311215-
751 AM EDT SAT MAR 31 2012

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT LIGHTNING AND HEAVY 
RAIN IN MARION AND CHATTAHOOCHEE COUNTIES UNTIL 815 AM EDT...

AT 747 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER FORT BENNING/LAWSON ARMY AIR FIELD...MOVING
EAST AT 20 MPH.

LIGHTNING DETECTION SYSTEMS INDICATE NUMEROUS CLOUD-TO-GROUND
LIGHTNING STRIKES ACROSS MARION AND CHATTAHOOCHEE COUNTIES...
INCLUDING AREAS AROUND FORT BENNING/LAWSON ARMY AIR FIELD...
ZELLOBEE...CHRISTOPHER...JAMESTOWN/SOUTH FORT BENNING...EELBECK/WEST
FORT BENNING...MANTA AND CUSSETA. RESIDENTS IN THIS AREA SHOULD STAY
INDOORS. ELECTRICAL APPLIANCES AND TELEPHONES SHOULD NOT BE USED
UNLESS IN AN EMERGENCY.

&&

LAT...LON 3223 8463 3222 8481 3223 8482 3223 8492
      3227 8490 3232 8500 3235 8501 3238 8498
      3237 8495 3241 8488 3241 8479 3244 8475
      3247 8458 3221 8449 3221 8460
TIME...MOT...LOC 1148Z 269DEG 18KT 3230 8494

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 9:24 PM EDTSpecial Weather StatementFFCForsyth36 min
Mar 31, 7:49 AM EDTSpecial Weather StatementFFCChattahoochee26 min
Mar 31, 4:47 PM EDTSpecial Weather StatementFFCCatoosa, Whitfield28 min
Mar 31, 5:14 PM EDTSpecial Weather StatementFFCCatoosa, Whitfield31 min
Mar 31, 5:44 PM EDTSevere Thunderstorm WarningFFCCatoosa, Whitfield46 min
Mar 31, 5:48 PM EDTSpecial Weather StatementFFCFloyd27 min
Mar 31, 6:12 PM EDTSevere Thunderstorm WarningFFCGordon, Murray37 min
Mar 31, 6:27 PM EDTSevere Thunderstorm WarningFFCGordon, Murray, Whitfield48 min
Mar 31, 6:56 PM EDTSevere Thunderstorm WarningFFCBartow49 min
Mar 31, 7:02 PM EDTSpecial Weather StatementFFCHall28 min
Mar 31, 7:26 PM EDTSpecial Weather StatementFFCHall34 min
Mar 31, 7:31 PM EDTSpecial Weather StatementFFCWhitfield29 min
Mar 31, 7:46 PM EDTSpecial Weather StatementFFCCherokee29 min
Mar 31, 7:54 PM EDTSpecial Weather StatementFFCJackson36 min
Mar 31, 7:56 PM EDTSpecial Weather StatementFFCGordon34 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.