Alert archive / Georgia / Flash Flood Warnings in 2013

Flash Flood Warning 47, NWS Atlanta, GA

July 10, 2013Wilkes County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 10, 2013, 12:31 AM EDT for Wilkes County, Georgia. It was in force for 6 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 10, 2013, 12:31 AM EDT (04:31 UTC)
Expired
Jul 10, 2013, 6:30 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

County Wilkes County, GA

The radar

The Greer radar (KGSP), 130 km from the middle of the area, began a volume at 04:30 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, 4.5 hours before the alert went out and 175 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 2013-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1342 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 2013-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
1342 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1182 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
20 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.

220 
WGUS52 KFFC 100431
FFWFFC
GAC317-101030-
/O.NEW.KFFC.FF.W.0047.130710T0431Z-130710T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1231 AM EDT WED JUL 10 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WILKES COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 630 AM EDT

* AT 1228 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM NEAR TIGNALL..MOVING            
  SOUTHEAST AT 20 MPH. RADAR ESTIMATES THAT TWO TO FOUR INCHES OF    
  RAIN HAS ALREADY FALLEN. ANOTHER 1 TO 2 INCHES IS POSSIBLE BEFORE  
  THE STORM SLOWLY MOVES SOUTH OF THE COUNTY.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WASHINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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 3363 8260 3360 8265 3360 8268 3362 8269
      3361 8271 3389 8290 3392 8288 3395 8279
      3399 8275 3400 8265 3388 8260 3387 8256
      3382 8259 3366 8249

$$
1 follow-up statement
839 
WGUS72 KFFC 100719
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
319 AM EDT WED JUL 10 2013

GAC317-100730-
/O.CAN.KFFC.FF.W.0047.000000T0000Z-130710T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILKES GA-
319 AM EDT WED JUL 10 2013

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WILKES COUNTY...

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 3363 8260 3360 8265 3360 8268 3362 8269
      3361 8271 3389 8290 3392 8288 3395 8279
      3399 8275 3400 8265 3388 8260 3387 8256
      3382 8259 3366 8249

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 10:51 PM EDTSpecial Weather StatementFFCClarke, Oconee39 min
Jul 10, 3:51 AM EDTFlash Flood WatchFFCBanks, Clarke, Hall, Jackson, Madison, Oglethorpe and 1 more22 hr
Jul 10, 9:07 AM EDTSpecial Weather StatementFFCPulaski23 min
Jul 10, 9:30 AM EDTSpecial Weather StatementFFCPulaski30 min
Jul 10, 9:43 AM EDTSpecial Weather StatementFFCDodge47 min
Jul 10, 10:00 AM EDTSpecial Weather StatementFFCBleckley, Pulaski60 min
Jul 10, 10:34 AM EDTFlash Flood WarningFFCHouston, Pulaski6 hr
Jul 10, 10:51 AM EDTRiver Flood WarningFFCClarke, Greene, Oconee36 hr
Jul 10, 11:04 AM EDTSpecial Weather StatementFFCLaurens56 min
Jul 10, 12:08 PM EDTSpecial Weather StatementFFCDeKalb37 min
Jul 10, 1:30 PM EDTSpecial Weather StatementFFCMurray, Whitfield45 min
Jul 10, 1:36 PM EDTFlash Flood WarningFFCDeKalb6 hr
Jul 10, 1:43 PM EDTSpecial Weather StatementFFCPike32 min
Jul 10, 1:46 PM EDTSpecial Weather StatementFFCHeard29 min
Jul 10, 1:50 PM EDTSpecial Weather StatementFFCBartow, Gordon40 min
Jul 10, 2:15 PM EDTSpecial Weather StatementFFCDawson30 min
Jul 10, 2:22 PM EDTSpecial Weather StatementFFCLumpkin23 min
Jul 10, 2:25 PM EDTSpecial Weather StatementFFCLamar, Pike, Talbot, Upson50 min
Jul 10, 2:42 PM EDTSpecial Weather StatementFFCHarris33 min
Jul 10, 2:48 PM EDTSpecial Weather StatementFFCDawson42 min
Jul 10, 3:02 PM EDTSevere Thunderstorm WarningFFCHaralson, Polk43 min
Jul 10, 3:05 PM EDTSpecial Weather StatementFFCChattahoochee, Stewart, Webster40 min
Jul 10, 3:35 PM EDTSpecial Weather StatementFFCPaulding25 min
Jul 10, 3:51 PM EDTSpecial Weather StatementFFCCobb24 min
Jul 10, 4:03 PM EDTSpecial Weather StatementFFCMuscogee27 min
Jul 10, 4:23 PM EDTSpecial Weather StatementFFCCherokee37 min
Jul 10, 4:27 PM EDTSpecial Weather StatementFFCChattahoochee, Muscogee48 min
Jul 10, 4:28 PM EDTSevere Thunderstorm WarningFFCJackson47 min
Jul 10, 4:51 PM EDTSpecial Weather StatementFFCCherokee24 min
Jul 10, 4:53 PM EDTSpecial Weather StatementFFCMarion, Schley52 min
Jul 10, 4:57 PM EDTSevere Thunderstorm WarningFFCCherokee, Fulton48 min
Jul 10, 5:48 PM EDTSevere Thunderstorm WarningFFCClarke42 min
Jul 10, 6:00 PM EDTFlash Flood WarningFFCClarke, Oconee4 hr
Jul 10, 6:55 PM EDTSpecial Weather StatementFFCHenry, Rockdale50 min
Jul 10, 7:09 PM EDTSevere Thunderstorm WarningFFCClayton, Henry36 min
Jul 10, 7:42 PM EDTSpecial Weather StatementFFCCatoosa, Dade48 min
Jul 10, 7:47 PM EDTSpecial Weather StatementFFCHenry, Newton, Walton43 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.