Alert archive / Georgia / Flash Flood Warnings in 2003

Flash Flood Warning 19, NWS Atlanta, GA

May 6, 2003Cobb County, Georgia

NWS Atlanta, GA issued this flash flood warning at May 6, 2003, 12:31 AM EDT for Cobb 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 counties it named.

The facts

Issued
May 6, 2003, 12:31 AM EDT (04:31 UTC)
Expired
May 6, 2003, 5:00 AM EDT
In force
4 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

County Cobb County, GA

The radar

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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.5 hours before the alert went out and 64 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 2003-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1313 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 2003-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.1939587897Sfc1 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
1313 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
399 m²/s²
Significant tornado parameter
3.1
Supercell composite
11.6

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 060438
FFWATL
GAC067-060900-
BULLETIN - EAS ACTIVATION REQUESTED	
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE PEACHTREE CITY GA 
1231 AM EDT TUE MAY 06 2003


THE NATIONAL WEATHER SERVICE HAS ISSUED A


* FLASH FLOOD WARNING FOR...
  COBB COUNTY IN NORTH CENTRAL GEORGIA


* UNTIL 5 AM EDT


* AT 1235 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  MODERATE TO HEAVY RAIN FALLING OVER THE ATLANTA METRO AREA. 
  RAINFALL AMOUNTS OF 1 TO 2 INCHES CAN BE EXPECTED. 

* FOR THE SOPE CREEK NEAR MARIETTA...
   NO FLOODING IS OCCURRING.
  LATEST STAGE...WAS 10.4 FEET AT 12 AM TUESDAY.
   BANKFULL STAGE...IS 12.0 FEET.  
   FLOOD STAGE...IS 12.0 FEET.
   THE FORECAST...FOR THE SOPE CREEK NEAR MARIETTA... 
          THE CREEK WILL RISE ABOVE FLOOD STAGE AT 2 AM TUESDAY. 
          IT WILL CREST NEAR 12.5 FEET AT 4 AM TUESDAY. 
          IT WILL FALL BELOW FLOOD STAGE AT 5 AM TUESDAY. 


DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. 
THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. 
TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES...INCLUDING 
SUVS AND PICKUPS. VEHICLES CAUGHT IN RISING WATER SHOULD BE 
ABANDONED QUICKLY. MOVE TO HIGH GROUND.

YOU CAN REPORT SERIOUS FLOODING TO THE NATIONAL WEATHER SERVICE BY 
CALLING 7 7 0 4 8 6 1 1 3 3 AT EXTENSION 2 0 4.


$$

LAT...LON 3394 8474 3381 8459 3399 8439 3410 8453
1 follow-up statement
000 
WGUS72 KFFC 060745
FFSATL
GAC067-060815-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
342 AM EDT TUE MAY 6 2003

...FLASH FLOOD WARNING CANCELLED FOR COBB COUNTY...

THE FLASH FLOOD WARNING FOR COBB COUNTY HAS BEEN CANCELLED. HEAVY 
RAINFALL FROM MONDAY EVENING...FROM 1 TO 3 INCHES...CAUSED CREEKS TO 
RAPIDLY RISE. MOST OF THE CREEKS HAVE NOW CRESTED AND ARE BEGINNING 
TO FALL. ON SOPE CREEK IN MARIETTA...IT CRESTED NEAR FLOOD STAGE OF 
12 FEET AND HAS NOW FALLEN TO 11 FEET. THEREFORE...THE FLASH FLOOD 
WARNING HAS BEEN TERMINATED.

LAT...LON 3406 8444 3385 8446 3385 8466 3407 8472

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 8:29 PM EDTSevere Thunderstorm WarningFFCBartow, Cobb, Paulding31 min
May 5, 10:10 PM EDTSevere Thunderstorm WarningFFCGreene35 min
May 5, 10:32 PM EDTSevere Thunderstorm WarningFFCCarroll, Haralson28 min
May 5, 11:04 PM EDTSevere Thunderstorm WarningFFCDouglas26 min
May 5, 11:34 PM EDTSevere Thunderstorm WarningFFCWalton26 min
May 6, 12:13 AM EDTSevere Thunderstorm WarningFFCRockdale32 min
May 6, 12:23 AM EDTSevere Thunderstorm WarningFFCNewton37 min
May 6, 1:33 AM EDTFlash Flood WarningFFCDeKalb, Fulton7 hr
May 6, 4:36 AM EDTFlash Flood WarningFFCDade, Walker3 hr
May 6, 8:15 AM EDTFlash Flood WarningFFCCatoosa, Dade, Walker3 hr
May 6, 8:54 AM EDTFlash Flood WarningFFCWhitfield4 hr
May 6, 10:25 AM EDTSevere Thunderstorm WarningFFCCatoosa, Dade, Walker35 min
May 6, 10:29 AM EDTSevere Thunderstorm WarningFFCCatoosa, Dade, Walker31 min
May 6, 10:50 AM EDTSevere Thunderstorm WarningFFCChattooga40 min
May 6, 10:59 AM EDTSevere Thunderstorm WarningFFCCatoosa, Walker46 min
May 6, 11:12 AM EDTSevere Thunderstorm WarningFFCFloyd, Gordon, Whitfield48 min
May 6, 11:15 AM EDTFlash Flood WarningFFCCatoosa, Chattooga, Dade, Walker, Whitfield3 hr
May 6, 11:29 AM EDTSevere Thunderstorm WarningFFCMurray31 min
May 6, 11:38 AM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Fannin, Gilmer, Pickens, Polk52 min
May 6, 11:39 AM EDTFlash Flood WarningFFCFloyd, Gordon3 hr
May 6, 11:47 AM EDTTornado WarningFFCBartow28 min
May 6, 12:00 PM EDTSevere Thunderstorm WarningFFCFloyd30 min
May 6, 12:05 PM EDTTornado WarningFFCCherokee25 min
May 6, 12:06 PM EDTTornado WarningFFCPickens24 min
May 6, 12:13 PM EDTFlash Flood WarningFFCBartow, Cherokee, Pickens3 hr
May 6, 12:13 PM EDTSevere Thunderstorm WarningFFCDawson, Forsyth, Hall, Lumpkin47 min
May 6, 12:31 PM EDTSevere Thunderstorm WarningFFCBartow, Floyd44 min
May 6, 12:44 PM EDTSevere Thunderstorm WarningFFCCherokee31 min
May 6, 12:51 PM EDTTornado WarningFFCCherokee24 min
May 6, 12:56 PM EDTFlash Flood WarningFFCDawson3 hr
May 6, 1:01 PM EDTTornado WarningFFCHall29 min
May 6, 1:10 PM EDTTornado WarningFFCDawson, Forsyth35 min
May 6, 1:15 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton45 min
May 6, 1:24 PM EDTSevere Thunderstorm WarningFFCFloyd, Paulding, Polk36 min
May 6, 1:29 PM EDTFlash Flood WarningFFCForsyth, Hall3 hr
May 6, 1:31 PM EDTTornado WarningFFCBanks, Hall, Jackson29 min
May 6, 1:34 PM EDTSevere Thunderstorm WarningFFCGwinnett41 min
May 6, 1:50 PM EDTTornado WarningFFCBarrow, Jackson25 min
May 6, 1:54 PM EDTTornado WarningFFCMadison36 min
May 6, 2:02 PM EDTFlash Flood WarningFFCCobb, Fulton, Gwinnett3 hr
May 6, 2:07 PM EDTSevere Thunderstorm WarningFFCCobb, DeKalb, Fulton, Gwinnett38 min
May 6, 2:09 PM EDTTornado WarningFFCCobb, DeKalb, Fulton36 min
May 6, 2:13 PM EDTTornado WarningFFCJackson17 min
May 6, 2:21 PM EDTFlash Flood WarningFFCPaulding3 hr
May 6, 2:23 PM EDTTornado WarningFFCMadison37 min
May 6, 2:25 PM EDTTornado WarningFFCGwinnett35 min
May 6, 2:28 PM EDTTornado WarningFFCClarke, Oglethorpe32 min
May 6, 2:30 PM EDTFlash Flood WarningFFCPolk3 hr
May 6, 2:48 PM EDTFlash Flood WarningFFCBarrow, Jackson, Madison3 hr
May 6, 2:48 PM EDTSevere Thunderstorm WarningFFCWalton27 min
May 6, 3:00 PM EDTTornado WarningFFCOglethorpe30 min
May 6, 3:04 PM EDTFlash Flood WarningFFCClarke, Oconee, Oglethorpe, Walton, Wilkes3 hr
May 6, 3:15 PM EDTTornado WarningFFCWilkes30 min
May 6, 3:28 PM EDTSevere Thunderstorm WarningFFCGreene, Oconee, Oglethorpe47 min
May 6, 3:29 PM EDTFlash Flood WarningFFCDeKalb3 hr
May 6, 3:39 PM EDTFlash Flood WarningFFCDouglas3 hr
May 6, 3:49 PM EDTSevere Thunderstorm WarningFFCTaliaferro, Wilkes41 min
May 6, 3:54 PM EDTFlash Flood WarningFFCFulton2 hr
May 6, 4:03 PM EDTTornado WarningFFCWilkes42 min
May 6, 4:21 PM EDTFlash Flood WarningFFCRockdale3 hr
May 6, 4:26 PM EDTSevere Thunderstorm WarningFFCWarren34 min
May 6, 4:27 PM EDTSevere Thunderstorm WarningFFCFayette, Fulton28 min
May 6, 4:32 PM EDTSevere Thunderstorm WarningFFCHeard28 min
May 6, 4:40 PM EDTFlash Flood WarningFFCClayton, Greene, Henry, Morgan, Newton65 min
May 6, 5:12 PM EDTSevere Thunderstorm WarningFFCCoweta, Heard33 min
May 6, 5:19 PM EDTFlash Flood WarningFFCDeKalb, Fulton6 hr
May 6, 5:28 PM EDTFlash Flood WarningFFCCobb6 hr
May 6, 6:06 PM EDTFlash Flood WarningFFCCarroll, Douglas, Haralson, Paulding84 min
May 6, 6:40 PM EDTSevere Thunderstorm WarningFFCLamar, Pike35 min
May 6, 6:48 PM EDTSevere Thunderstorm WarningFFCMeriwether22 min

Nearby

Flash Flood Warnings in Georgia, 2003Every flash flood warning in 2003

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.