Flash Flood Warning 37, NWS Atlanta, GA

Issued

Sep 21, 2009, 12:31 AM EDT (04:31 UTC)

Expired

Sep 21, 2009, 6:15 AM EDT

In force

6 hr

Issued by

NWS Atlanta, GA

Area

Storm-based polygon

Flood severity

None

Counties Cherokee County, GA, Clayton County, GA, Cobb County, GA, DeKalb County, GA, Forsyth County, GA, Fulton County, GA, Gwinnett County, GA

The Atlanta radar (KFFC), 64 km from the middle of the area, began a volume at 04:31 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.

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

000 
WGUS52 KFFC 210431
FFWFFC
GAC057-063-067-089-117-121-135-211015-
/O.NEW.KFFC.FF.W.0037.090921T0431Z-090921T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1231 AM EDT MON SEP 21 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA
  CLAYTON COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN COBB COUNTY IN NORTH CENTRAL GEORGIA
  DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  FORSYTH COUNTY IN NORTH CENTRAL GEORGIA
  FULTON COUNTY IN NORTH CENTRAL GEORGIA
  WESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 615 AM EDT

* AT 1216 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
  INDICATED A LARGE THUNDERSTORM COMPLEX WITH INTENSE HEAVY RAIN
  FROM THE ALABAMA AND GEORGIA STATE LINE EAST TO THE ATLANTA METRO  
  AREA. THE COMPLEX IS SHIFTING TO THE EAST TO NORTHEAST AT 10 MPH
  AND WILL AFFECT THE WARNED AREA THROUGHOUT THE NIGHT. VERY HEAVY
  RAINFALL AMOUNTS OF 3 TO 7 INCHES HAVE OCCURRED SINCE 900 PM EDT
  SUNDAY FROM FRANKLIN THROUGH CARROLLTON TO DOUGLAS AND DALLAS.     
  NUMEROUS REPORTS OF FLASH FLOODING IN THESE LOCATIONS ARE BEING    
  RECEIVED AT THIS TIME.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD...
  MOUNTAIN PARK...SUWANEE...SUGAR HILL...SNELLVILLE...NORCROSS...
  LILBURN...DULUTH...BERKELEY LAKE...LITHONIA...PINE LAKE...AVONDALE
  ESTATES...DECATUR...STONE MOUNTAIN...CLARKSTON...TUCKER...DRUID
  HILLS...DORAVILLE...CHAMBLEE...DUNWOODY...GRANT PARK-ZOO ATLANTA...
  MIDTOWN...JOHNS CREEK...MILTON...SANDY SPRINGS...ROSWELL...
  ATLANTA...ALPHARETTA...SMYRNA...MARIETTA...CUMMING...WOODSTOCK...
  HOLLY SPRINGS...FREE HOME...BUFFINGTON...CANTON...BALL GROUND...
  WALESKA AND NELSON.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3438 8426 3433 8426 3434 8396 3429 8393
      3418 8406 3411 8402 3379 8401 3363 8412
      3365 8428 3359 8424 3352 8428 3351 8441
      3356 8444 3350 8461 3352 8483 3357 8481
      3374 8458 3408 8458 3409 8465 3441 8465

$$
16

000 
WGUS72 KFFC 210841
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
441 AM EDT MON SEP 21 2009

GAC057-063-067-089-117-121-135-211015-
/O.CON.KFFC.FF.W.0037.000000T0000Z-090921T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAYTON GA-DEKALB GA-COBB GA-GWINNETT GA-FORSYTH GA-CHEROKEE GA-
FULTON GA-
441 AM EDT MON SEP 21 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM EDT FOR
FULTON...CHEROKEE...FORSYTH...WESTERN GWINNETT...EASTERN COBB...
DEKALB AND NORTHERN CLAYTON COUNTIES...

AT 430 AM EDT...THE VERY HEAVY RAIN CONTINUES OVER A LARGE PORTION 
OF THE WARNED AREA. THE STORMS WERE MOVING EAST TO NORTHEAST AT 15 
MPH AND THEY WILL TRAIN OVER THEMSELVES CAUSING HEAVY RAINFALL 
ACCUMULATIONS. COUNTY OFFICIALS AND THE PUBLIC HAVE INDICATED
WIDESPREAD FLOODING OF CREEKS...RIVERS...ROADS...BASEMENTS AND SOME 
HOMES. THIS WILL CONTINUE AS THE STORMS WITH PERIODS OF HEAVY RAIN 
ARE EXTENDING BACK INTO CENTRAL ALABAMA.

WEATHER RADAR ESTIMATES OF 3 TO 6 INCHES OF RAIN HAVE FALLEN OVER 
CENTRAL AND SOUTH FULTON...ALL OF DEKALB...AND EASTERN GWINNETT 
COUNTIES SINCE 1000 PM EDT SUNDAY. RAINFALL AMOUNTS OF 1 TO 2 INCHES 
HAVE FALLEN IN CHEROKEE AND FORSYTH COUNTIES DURING THE SAME TIME 
PERIOD. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LILBURN...
MOUNTAIN PARK...SUWANEE...SUGAR HILL...NORCROSS...DULUTH...BERKELEY
LAKE...DORAVILLE...CHAMBLEE...DUNWOODY...JOHNS CREEK...MILTON...SANDY
SPRINGS...ROSWELL...ALPHARETTA...MARIETTA...CUMMING...WOODSTOCK...
HOLLY SPRINGS...FREE HOME...BUFFINGTON...CANTON...BALL GROUND...
WALESKA AND NELSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOOD WATERS ARE MOVING DOWN PEACHTREE CREEK...NANCY CREEK...BIG 
CREEK...SOPE CREEK AND THE CHATTAHOOCHEE RIVER.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3438 8426 3433 8426 3434 8396 3429 8393
      3418 8406 3411 8402 3379 8401 3363 8412
      3365 8428 3359 8424 3352 8428 3351 8441
      3356 8444 3350 8461 3352 8483 3357 8481
      3374 8458 3408 8458 3409 8465 3441 8465

$$
16

Flash Flood Warnings in Georgia, 2009Every flash flood warning in 2009

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.