Alert archive / Georgia / Flash Flood Warnings in 2013

Flash Flood Warning 60, NWS Atlanta, GA

July 20, 2013Bartow County, Gordon County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 20, 2013, 6:35 AM EDT for Bartow County, Gordon County, Georgia. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 20, 2013, 6:35 AM EDT (10:35 UTC)
Expired
Jul 20, 2013, 10:30 AM EDT
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Bartow County, GA, Gordon County, GA

The radar

The Atlanta radar (KFFC), 114 km from the middle of the area, began a volume at 10:34 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, 10.6 hours before the alert went out and 114 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 2013-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1111 joules per kilogram.LCLEL10008507005003002001001 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 2013-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
1111 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
27 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.

058 
WGUS52 KFFC 201035
FFWFFC
GAC015-129-201430-
/O.NEW.KFFC.FF.W.0060.130720T1035Z-130720T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
635 AM EDT SAT JUL 20 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN BARTOW COUNTY IN NORTHWEST GEORGIA
  SOUTHEASTERN GORDON COUNTY IN NORTHWEST GEORGIA

* UNTIL 1030 AM EDT

* AT 628 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM THUNDERSTORMS NEAR WHITE...PINE LOG AND        
  SONORAVILLE...THESE STORMS WERE MOVING SOUTH AT 5 MPH.

* THE STORMS PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER   
  MAINLY RURAL AREAS OF THE INDICATED COUNTY BETWEEN WHITE...PINE 
  LOG...FUNKHOUSER AND SONORAVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

2 TOP 3 INCHES OF RAIN HAS ALREADY FALLEN OVER THE AREA AND ADDITIONAL 
RAINFALL AMOUNTS OF OF 1 TO 2 INCHES ARE POSSIBLE IN THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

CREEKS IMPACTED INCLUDE SUGAR HILL CREEK...LITTLE PINE LOG CREEK...
PINE LOG CREEK...SALACOA CREEK AND CEDAR CREEK DRAINING DOWNSTREAM 
TOWARD THE COOSAWATTE RIVER NEAR REDBUD.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT
USING HASHTAG GAWX.

&&

LAT...LON 3439 8465 3436 8466 3435 8464 3435 8466
      3425 8466 3427 8482 3453 8488 3456 8479

$$
1 follow-up statement
613 
WGUS72 KFFC 201340
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
940 AM EDT SAT JUL 20 2013

GAC015-129-201344-
/O.CAN.KFFC.FF.W.0060.000000T0000Z-130720T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BARTOW GA-GORDON GA-
940 AM EDT SAT JUL 20 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN GORDON
AND NORTHEASTERN BARTOW COUNTIES...

AREAS IN SOUTHEAST GORDON AND NORTHEAST BARTOW COUNTIES RECEIVED 
APPROXIMATELY 3.5 INCHES OF RAIN THIS MORNING...HOWEVER THE RAIN 
ACROSS THE AREA HAS ENDED FOR NOW. ADDITIONAL RAINFALL IS POSSIBLE 
LATER TODAY THOUGH. PER DISCUSSIONS WITH LOCAL EMERGENCY MANAGEMENT 
OFFICIALS...NO FLOODING IS CURRENTLY OCCURRING ACROSS THE WARNING 
AREA AND THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED. 

IF YOU OBSERVED SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER 
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR 
REPORT USING HASHTAG GAWX.

LAT...LON 3439 8465 3436 8466 3435 8464 3435 8466
      3425 8466 3427 8482 3453 8488 3456 8479

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 1:56 AM EDTSpecial Weather StatementFFCPaulding49 min
Jul 20, 5:49 AM EDTSpecial Weather StatementFFCGordon41 min
Jul 20, 6:41 AM EDTSpecial Weather StatementFFCMurray34 min
Jul 20, 7:12 AM EDTSpecial Weather StatementFFCMurray63 min
Jul 20, 1:32 PM EDTSpecial Weather StatementFFCGwinnett28 min
Jul 20, 2:12 PM EDTSpecial Weather StatementFFCWhite33 min
Jul 20, 3:05 PM EDTSpecial Weather StatementFFCHall25 min
Jul 20, 3:40 PM EDTSpecial Weather StatementFFCDouglas35 min
Jul 20, 3:53 PM EDTSpecial Weather StatementFFCHall52 min
Jul 20, 3:59 PM EDTSpecial Weather StatementFFCClayton46 min
Jul 20, 4:19 PM EDTSpecial Weather StatementFFCCobb41 min
Jul 20, 4:24 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton51 min
Jul 20, 4:41 PM EDTFlash Flood WarningFFCClayton, Cobb, Douglas, Fulton6 hr
Jul 20, 5:42 PM EDTSpecial Weather StatementFFCHeard33 min
Jul 20, 6:19 PM EDTSpecial Weather StatementFFCHeard41 min
Jul 20, 6:39 PM EDTSpecial Weather StatementFFCUnion51 min
Jul 20, 6:43 PM EDTSpecial Weather StatementFFCDawson62 min
Jul 20, 7:29 PM EDTSpecial Weather StatementFFCOglethorpe61 min
Jul 20, 7:36 PM EDTSpecial Weather StatementFFCBaldwin54 min

Nearby

Flash Flood Warnings in Georgia, 2013Every flash flood warning 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.