Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

August 7, 2013Heard County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 7, 2013, 8:25 PM EDT for Heard County, Georgia. It was in force for 65 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, 2013, 8:25 PM EDT (00:25 UTC)
Expired
Aug 7, 2013, 9:30 PM EDT
In force
65 min
Issued by
NWS Atlanta, GA

County Heard County, GA

The radar

The Atlanta radar (KFFC), 55 km from the middle of the area, began a volume at 00:27 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 00:00Z, 0.4 hours before the alert went out and 61 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 2013-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 731 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2013-08-08The 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
731 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
22 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.

618 
WWUS82 KFFC 080025
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
825 PM EDT WED AUG 7 2013

GAZ042-052-053-080130-
825 PM EDT WED AUG 7 2013

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN AND GUSTY WINDS IN 
CARROLL...WESTERN COWETA AND HEARD COUNTIES UNTIL 930 PM EDT...

AT 822 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG THUNDERSTORMS WITH HEAVY RAIN FROM LOWELL TO FROLONA...MOVING 
SOUTHEAST AT 15 MPH. RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE 
WITH THESE STORMS. ALSO...WIND GUSTS OF 30 TO 35 MPH ARE POSSIBLE 
WITH THESE STORMS.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
CARROLL...COWETA AND HEARD COUNTIES...INCLUDING AREAS AROUND
ROOSTERVILLE...EPHESUS...LOWELL...BLACKJACK MOUNTAIN...TYUS...
ROOPVILLE...FROLONA...PLANT WANSLEY...CENTRALHATCHEE...WARESVILLE...
TEXAS...POWERS CROSSROADS AND FRANKLIN. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS ARE SUBJECT TO
MINOR FLOODING.

&&

LAT...LON 3351 8520 3351 8507 3326 8489 3316 8525
      3345 8531
TIME...MOT...LOC 0024Z 337DEG 12KT 3346 8508 3343 8515
          3335 8523

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 12:10 PM EDTSpecial Weather StatementFFCClayton, DeKalb, Fayette35 min
Aug 8, 12:40 PM EDTSpecial Weather StatementFFCClayton, Cobb, Coweta, DeKalb, Fayette, Fulton and 1 more80 min
Aug 8, 12:44 PM EDTSpecial Weather StatementFFCUnion61 min
Aug 8, 1:00 PM EDTFlash Flood WarningFFCClayton, Cobb, Coweta, DeKalb, Fayette, Fulton and 3 more6 hr
Aug 8, 1:13 PM EDTSpecial Weather StatementFFCForsyth, Hall77 min
Aug 8, 1:23 PM EDTSpecial Weather StatementFFCMadison67 min
Aug 8, 1:56 PM EDTSpecial Weather StatementFFCCarroll, Douglas79 min
Aug 8, 2:13 PM EDTFlash Flood WarningFFCBanks, Hall, Jackson6 hr
Aug 8, 2:46 PM EDTSpecial Weather StatementFFCCobb, Paulding59 min
Aug 8, 3:38 PM EDTSpecial Weather StatementFFCHarris52 min
Aug 8, 3:42 PM EDTSpecial Weather StatementFFCBartow, Haralson, Paulding, Polk63 min
Aug 8, 3:51 PM EDTSpecial Weather StatementFFCCatoosa, Walker54 min
Aug 8, 4:39 PM EDTSpecial Weather StatementFFCFloyd, Gordon, Polk66 min
Aug 8, 4:41 PM EDTSpecial Weather StatementFFCDade64 min
Aug 8, 5:43 PM EDTSpecial Weather StatementFFCDade47 min
Aug 8, 6:13 PM EDTSpecial Weather StatementFFCCatoosa, Dade, Walker62 min
Aug 8, 6:46 PM EDTFlash Flood WarningFFCDade, Walker4 hr
Aug 8, 7:02 PM EDTSpecial Weather StatementFFCChattooga58 min
Aug 8, 7:24 PM EDTSpecial Weather StatementFFCCatoosa, Murray, Whitfield66 min
Aug 8, 7:29 PM EDTFlash Flood WarningFFCCatoosa4 hr

Nearby

Special Weather Statements in Georgia, 2013Every special weather statement in 2013

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.