Alert archive / Georgia / Flash Flood Warnings in 2014

Flash Flood Warning 34, NWS Atlanta, GA

September 8, 2014DeKalb County, Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Sep 8, 2014, 2:11 AM EDT for DeKalb County, Fulton County, Georgia. It was in force for 6 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 8, 2014, 2:11 AM EDT (06:11 UTC)
Expired
Sep 8, 2014, 8:15 AM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties DeKalb County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 53 km from the middle of the area, began a volume at 06:14 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.

What was reported inside it

TimeReportWhereRemark
Sep 8, 4:00 AM EDTFLASH FLOOD1 Nnw Mayfair, GATHE UPPER REACHES OF PEACHTREE CREEK NEAR THE FULTON AND DEKALB COUNTY LINE HAD MINOR FLOODING OF RESIDENTIAL YARDS AND COMMERICAL PROPERTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.2 hours before the alert went out and 51 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 2014-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 498 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 2014-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -123 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
498 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-123 m²/s²
0-3 km storm-relative helicity
-110 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

218 
WGUS52 KFFC 080611
FFWFFC
GAC089-121-081215-
/O.NEW.KFFC.FF.W.0034.140908T0611Z-140908T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
211 AM EDT MON SEP 8 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 815 AM EDT

* AT 200 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  POSSIBLE FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.  
  AN ADDITIONAL 0.25 TO 0.50 INCHES OF RAINFALL CAN BE EXPECTED. THE 
  NORTH FORK PEACHTREE CREEK RIVER GAGE HAS INDICATED THAT THE CREEK 
  HAS RISEN QUICKLY AND MINOR FLOODING IS OCCURRING. ADDITIONAL      
  RISES CAN BE EXPECTED. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD...
  DORAVILLE AND CHAMBLEE.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
NORTH FORK PEACHTREE CREEK...PEACHTREE CREEK...SOUTH FORK PEACHTREE
CREEK...PEAVINE CREEK...LULLWATER CREEK...PROCTOR CREEK...COBBS
CREEK...SUGAR CREEK...INTRENCHMENT CREEK...SOUTH RIVER...CONLEY CREEK
AND FLINT RIVER.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.

&&

LAT...LON 3386 8441 3388 8437 3391 8435 3392 8427
      3365 8426 3365 8441 3375 8441

$$
3 follow-up statements
638 
WGUS72 KFFC 080710
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
310 AM EDT MON SEP 8 2014

GAC089-121-081215-
/O.CON.KFFC.FF.W.0034.000000T0000Z-140908T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-FULTON GA-
310 AM EDT MON SEP 8 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM EDT FOR
CENTRAL FULTON AND WESTERN DEKALB COUNTIES...

AT 300 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE AN AREA OF FLASH FLOODING IN CENTRAL FULTON AND WESTERN 
DEKALB COUNTIES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
BUCKHEAD...DORAVILLE AND CHAMBLEE.

AS OF 300 AM NORTH FORK PEACHTREE CREEK IN WESTERN DEKALB HAS RISEN 
TO MODERATE FLOOD STAGE OF 15 FEET. AT THIS LEVEL LARGE PORTIONS OF 
BACKYARDS OF RESIDENTIAL HOMES ON VICTORY DRIVE...DUNWOODY 
PLACE...AND CONVERSE DRIVE WILL BE FLOODED. A PORTION OF THE SUN TAN 
CENTER PARKING LOT ON THE EAST SIDE OF BUFORD HIGHWAY BEGINS TO 
FLOOD. AS THIS WATER MOVES DOWNSTREAM...RISES ARE EXPECTED AT THE 
PEACHTREE CREEK GAGE IN ATLANTA NEAR NORTHSIDE DRIVE AND WOODWARD 
WAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
NORTH FORK PEACHTREE CREEK...PEACHTREE CREEK...SOUTH FORK PEACHTREE
CREEK...PEAVINE CREEK...LULLWATER CREEK...PROCTOR CREEK...COBBS
CREEK...SUGAR CREEK...INTRENCHMENT CREEK...SOUTH RIVER AND CONLEY
CREEK.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.

&&

LAT...LON 3386 8441 3388 8437 3391 8435 3392 8427
      3365 8426 3365 8441 3375 8441

$$
673 
WGUS72 KFFC 080912
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
512 AM EDT MON SEP 8 2014

GAC089-121-081215-
/O.CON.KFFC.FF.W.0034.000000T0000Z-140908T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-FULTON GA-
512 AM EDT MON SEP 8 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM EDT FOR
CENTRAL FULTON AND WESTERN DEKALB COUNTIES...

AT 506 AM EDT...RADAR ESTIMATES INDICATED THAT BETWEEN 4.5 AND 5.5 
INCHES OF RAIN FELL IN A LOCALIZED PORTION OF THE WARNED AREA. THE 
FLASH FLOODING THREAT CONTINUES. MODERATE FLOODING AT NORTHFORK 
PEACHTREE CREEK HAS SUBSIDED...BUT LOCAL AREA CREEKS AND RIVERS 
REMAIN HIGH AND ARE STILL RESPONDING TO THE HIGH RAINFALL AMOUNTS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD...
DORAVILLE AND CHAMBLEE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
NORTH FORK PEACHTREE CREEK...PEACHTREE CREEK...SOUTH FORK PEACHTREE
CREEK...PEAVINE CREEK...LULLWATER CREEK...PROCTOR CREEK...COBBS
CREEK...SUGAR CREEK...INTRENCHMENT CREEK...SOUTH RIVER AND CONLEY
CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.

&&

LAT...LON 3386 8441 3388 8437 3391 8435 3392 8427
      3365 8426 3365 8441 3375 8441

$$
899 
WGUS72 KFFC 081127
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
727 AM EDT MON SEP 8 2014

GAC089-121-081136-
/O.CAN.KFFC.FF.W.0034.000000T0000Z-140908T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-FULTON GA-
727 AM EDT MON SEP 8 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL FULTON AND
WESTERN DEKALB COUNTIES...

RAIN HAS ENDED ACROSS THE AREA...AND LOCAL CREEKS AND RIVERS THAT 
HAD QUICKLY RISEN EARLIER THIS MORNING HAVE NOW CRESTED AND LEVELS 
ARE FALLING. THESE CREEKS AND RIVERS MAY REMAIN SWOLLEN FOR THE NEXT 
SEVERAL HOURS BUT THE IMMEDIATE THREAT HAS DIMINISHED.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.

LAT...LON 3386 8441 3388 8437 3391 8435 3392 8427
      3365 8426 3365 8441 3375 8441

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 8:03 PM EDTSpecial Weather StatementFFCHarris27 min
Sep 7, 10:31 PM EDTSpecial Weather StatementFFCGwinnett29 min
Sep 8, 12:38 AM EDTSpecial Weather StatementFFCPaulding37 min
Sep 8, 1:21 AM EDTSpecial Weather StatementFFCDeKalb, Fulton24 min
Sep 8, 1:56 AM EDTSpecial Weather StatementFFCDeKalb34 min
Sep 8, 3:56 AM EDTFlash Flood WarningFFCFulton6 hr
Sep 8, 4:44 PM EDTSpecial Weather StatementFFCLaurens31 min
Sep 8, 4:53 PM EDTSpecial Weather StatementFFCTreutlen37 min
Sep 8, 5:12 PM EDTSpecial Weather StatementFFCLaurens48 min
Sep 8, 5:24 PM EDTSevere Thunderstorm WarningFFCDodge, Laurens36 min
Sep 8, 5:36 PM EDTSpecial Weather StatementFFCDooly24 min
Sep 8, 5:44 PM EDTSpecial Weather StatementFFCPulaski31 min
Sep 8, 5:58 PM EDTSpecial Weather StatementFFCLaurens32 min
Sep 8, 6:15 PM EDTSpecial Weather StatementFFCPulaski30 min
Sep 8, 6:30 PM EDTSpecial Weather StatementFFCDodge30 min
Sep 8, 6:36 PM EDTSpecial Weather StatementFFCHouston24 min
Sep 8, 6:46 PM EDTSpecial Weather StatementFFCPulaski29 min
Sep 8, 6:57 PM EDTSpecial Weather StatementFFCDodge33 min
Sep 8, 7:01 PM EDTSpecial Weather StatementFFCDooly, Macon29 min
Sep 8, 7:14 PM EDTSpecial Weather StatementFFCPulaski31 min
Sep 8, 7:30 PM EDTSpecial Weather StatementFFCDooly, Macon, Sumter45 min
Sep 8, 7:54 PM EDTSpecial Weather StatementFFCSchley36 min

Nearby

Flash Flood Warnings in Georgia, 2014Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.