Alert archive / Georgia / Flash Flood Warnings in 2004

Flash Flood Warning 43, NWS Atlanta, GA

November 23, 2004Cobb County, Georgia

NWS Atlanta, GA issued this flash flood warning at Nov 23, 2004, 8:44 PM EST for Cobb County, Georgia. It was in force for 5 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
Nov 23, 2004, 8:44 PM EST (01:44 UTC)
Expired
Nov 24, 2004, 2:00 AM EST
In force
5 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Cobb County, GA

The radar

The Atlanta radar (KFFC), 67 km from the middle of the area, began a volume at 01:47 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, 1.7 hours before the alert went out and 66 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 2004-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 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 2004-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.19395878Sfc1 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
64 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
13 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.

000 
WGUS52 KFFC 240147
FFWFFC
GAC067-240700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
844 PM EST TUE NOV 23 2004

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 200 AM EST

* NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL INCHES OF
  RAIN HAS FALLEN OVER SOPE CREEK EARLIER THIS EVENING.

* FOR THE SOPE CREEK NEAR MARIETTA...
   MINOR FLOODING IS FORECAST.
  THE LATEST STAGE WAS 12.3 FEET AT 08 PM TUESDAY.
  FLOOD STAGE IS 12.0 FEET.
   THE FORECAST FOR THE SOPE CREEK NEAR MARIETTA...
      THE CREEK WILL CREST NEAR 13.5 FEET AROUND 11 PM TUESDAY.
      THE CREEK WILL FALL BELOW FLOOD STAGE AROUND 2 AM WEDNESDAY.


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 
SPORT UTILITY VEHICLES AND PICKUPS. VEHICLES CAUGHT IN RISING WATER 
SHOULD BE ABANDONED QUICKLY. MOVE TO HIGH GROUND.

A FLASH FLOOD WARNING MEANS THAT SIGNIFICANT FLOODING OF STREAMS...
CREEKS...AND ROADS IS EXPECTED. THIS MAY CAUSE SOME MODERATE TO MAJOR
INCONVENIENCES TO THE PUBLIC...AND PROPERTY DAMAGE OR THREAT TO LIFE 
IS ELEVATED.

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

LAT...LON 3396 8456 3388 8449 3398 8438 3404 8443


$$
1 follow-up statement
000 
WGUS72 KFFC 240422
FFSFFC
GAC067-240440-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1120 PM EST TUE NOV 23 2004

...THE FLASH FLOOD WARNING FOR SOPE CREEK IN COBB COUNTY HAS
BEEN CANCELLED...

HEAVY RAINFALL HAS MOVED OUT OF THE AREA AND SOPE CREEK HAS FALLEN 
BELOW THE FLOOD STAGE OF 12 FEET. THE THREAT FOR FLASH FLOODING 
ALONG AREA CREEKS...STREAMS...OR ROADWAYS HAS DIMINISHED. 


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 24, 8:56 AM ESTSevere Thunderstorm WarningFFCHaralson49 min
Nov 24, 9:03 AM ESTSevere Thunderstorm WarningFFCCarroll, Heard42 min
Nov 24, 9:08 AM ESTSevere Thunderstorm WarningFFCPolk52 min
Nov 24, 9:14 AM ESTTornado WarningFFCCarroll31 min
Nov 24, 9:21 AM ESTSevere Thunderstorm WarningFFCTroup39 min
Nov 24, 9:25 AM ESTSevere Thunderstorm WarningFFCHarris50 min
Nov 24, 9:29 AM ESTSevere Thunderstorm WarningFFCBartow, Cobb, Coweta, Douglas, Fulton, Paulding46 min
Nov 24, 9:33 AM ESTSevere Thunderstorm WarningFFCMuscogee42 min
Nov 24, 9:37 AM ESTSevere Thunderstorm WarningFFCMeriwether38 min
Nov 24, 9:48 AM ESTTornado WarningFFCCoweta27 min
Nov 24, 9:54 AM ESTSevere Thunderstorm WarningFFCTalbot51 min
Nov 24, 9:56 AM ESTTornado WarningFFCFayette34 min
Nov 24, 10:00 AM ESTSevere Thunderstorm WarningFFCCherokee, Clayton, Cobb, DeKalb, Fulton, Pickens30 min
Nov 24, 10:03 AM ESTSevere Thunderstorm WarningFFCPike, Spalding42 min
Nov 24, 10:06 AM ESTSevere Thunderstorm WarningFFCChattahoochee, Marion39 min
Nov 24, 10:10 AM ESTSevere Thunderstorm WarningFFCHenry35 min
Nov 24, 10:15 AM ESTTornado WarningFFCTalbot30 min
Nov 24, 10:20 AM ESTSevere Thunderstorm WarningFFCUpson40 min
Nov 24, 10:24 AM ESTSevere Thunderstorm WarningFFCDawson, DeKalb, Forsyth, Fulton, Gwinnett, Lumpkin and 1 more36 min
Nov 24, 10:31 AM ESTSevere Thunderstorm WarningFFCButts, Lamar44 min
Nov 24, 10:36 AM ESTSevere Thunderstorm WarningFFCNewton39 min
Nov 24, 10:47 AM ESTSevere Thunderstorm WarningFFCJasper43 min
Nov 24, 10:51 AM ESTSevere Thunderstorm WarningFFCBarrow, Gwinnett, Hall, Jackson, Lumpkin, Walton and 1 more39 min
Nov 24, 10:58 AM ESTSevere Thunderstorm WarningFFCMorgan, Putnam47 min
Nov 24, 11:23 AM ESTSevere Thunderstorm WarningFFCBanks, Clarke, Greene, Jackson, Madison, Oconee and 1 more37 min
Nov 24, 11:30 AM ESTSevere Thunderstorm WarningFFCBibb, Houston, Peach30 min
Nov 24, 11:44 AM ESTSevere Thunderstorm WarningFFCTwiggs31 min
Nov 24, 11:55 AM ESTTornado WarningFFCTwiggs, Wilkinson35 min
Nov 24, 12:01 PM ESTSevere Thunderstorm WarningFFCMadison, Oglethorpe, Taliaferro, Wilkes29 min
Nov 24, 12:04 PM ESTSevere Thunderstorm WarningFFCBleckley26 min
Nov 24, 12:28 PM ESTSevere Thunderstorm WarningFFCLaurens47 min
Nov 24, 12:42 PM ESTSevere Thunderstorm WarningFFCWashington33 min

Nearby

Flash Flood Warnings in Georgia, 2004Every flash flood warning in 2004

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.