Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Atlanta, GA

August 2, 2014Jefferson County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 2, 2014, 9:13 AM EDT for Jefferson County, Georgia. It was in force for 47 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 2, 2014, 9:13 AM EDT (13:13 UTC)
Expired
Aug 2, 2014, 10:00 AM EDT
In force
47 min
Issued by
NWS Atlanta, GA

County Jefferson County, GA

The radar

The Robins AFB radar (KJGX), 60 km from the middle of the area, began a volume at 13:16 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, 1.2 hours before the alert went out and 176 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 2014-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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 2014-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.193958Sfc1 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
9 J/kg
Mixed-layer CIN
-204 J/kg
Mixed-layer LCL
657 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

444 
WWUS82 KFFC 021313
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
913 AM EDT SAT AUG 2 2014

GAZ074-076-084-021400-
913 AM EDT SAT AUG 2 2014

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN WASHINGTON...
WILKINSON AND JEFFERSON COUNTIES UNTIL 1000 AM EDT...

AT 909 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM LOUISVILLE TO NICKLESVILLE...MOVING EAST AT
10 MPH.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
WASHINGTON...WILKINSON AND JEFFERSON COUNTIES...INCLUDING AREAS
AROUND NICKLESVILLE...ALLENTOWN...LOUISVILLE...RIDDLEVILLE...
DAVISBORO...HARRISON...WADLEY...BARTOW...PRINGLE AND MOXLEY.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS ARE SUBJECT TO MINOR FLOODING.

&&

LAT...LON 3291 8227 3280 8250 3282 8256 3278 8266
      3279 8270 3277 8276 3280 8278 3281 8282
      3276 8295 3270 8296 3259 8322 3260 8324
      3270 8329 3309 8244 3306 8228
TIME...MOT...LOC 1313Z 270DEG 7KT 3297 8241 3282 8271
          3265 8312

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 10:28 AM EDTSpecial Weather StatementFFCJefferson47 min
Aug 2, 2:35 PM EDTSpecial Weather StatementFFCCatoosa55 min
Aug 2, 3:03 PM EDTSpecial Weather StatementFFCTowns57 min
Aug 2, 3:33 PM EDTSpecial Weather StatementFFCDawson, Pickens57 min
Aug 2, 3:45 PM EDTSpecial Weather StatementFFCMurray60 min
Aug 2, 3:53 PM EDTSpecial Weather StatementFFCTowns52 min
Aug 2, 4:30 PM EDTSpecial Weather StatementFFCDawson, Pickens60 min
Aug 2, 4:44 PM EDTSpecial Weather StatementFFCGilmer, Union46 min
Aug 2, 4:58 PM EDTSpecial Weather StatementFFCPickens32 min
Aug 2, 5:26 PM EDTSpecial Weather StatementFFCPickens, Union49 min
Aug 2, 5:49 PM EDTFlash Flood WarningFFCBartow, Cherokee, Gordon4 hr
Aug 2, 6:30 PM EDTSpecial Weather StatementFFCUnion60 min
Aug 2, 7:03 PM EDTSpecial Weather StatementFFCFloyd42 min
Aug 2, 7:40 PM EDTSpecial Weather StatementFFCFannin50 min

Nearby

Special Weather Statements in Georgia, 2014Every special weather statement in 2014

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.