Alert archive / Georgia / Flash Flood Warnings in 2004

Flash Flood Warning 8, NWS Atlanta, GA

June 14, 2004Cobb County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jun 14, 2004, 12:39 AM EDT for Cobb County, Georgia. It was in force for 3 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
Jun 14, 2004, 12:39 AM EDT (04:39 UTC)
Expired
Jun 14, 2004, 4:00 AM EDT
In force
3 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), 66 km from the middle of the area, began a volume at 04:42 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, 4.7 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 2004-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1883 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 2004-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
1883 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
10 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 140443
FFWATL
GAC067-150800-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1239 AM EDT MON JUN 14 2004


THE NATIONAL WEATHER SERVICE HAS ISSUED A


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


* UNTIL 400 AM EDT

* AT 1230 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  MODERATE TO HEAVY RAIN FALLING OVER NORTH COBB COUNTY.
  RAINFALL AMOUNTS OF 3 TO 4 INCHES HAVE OCCURED AND AN ADDITIONAL
  INCH CAN BE EXPECTED.

* FOR THE SOPE CREEK NEAR MARIETTA...
   FLOODING IS FORECAST.
   THE LATEST STAGE...WAS 9.8 FEET AT 12 AM MONDAY.
   FLOOD STAGE...IS 12.0 FEET.
   THE FORECAST...FOR THE SOPE CREEK NEAR MARIETTA...
      THE CREEK WILL RISE ABOVE FLOOD STAGE AROUND 2 AM.
      THE CREEK WILL CREST NEAR 12.1 FEET AROUND 3 AM MONDAY.
      THE CREEK WILL FALL BELOW FLOOD STAGE AROUND 4 AM.


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.

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 3394 8474 3381 8459 3399 8439 3410 8453


$$
1 follow-up statement
000 
WGUS72 KFFC 140542
FFSATL
GAC067-140550-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
140 AM EDT MON JUN 14 2004


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

AT 140 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
RAINFALL HAS DIMINISHED AND MOVED INTO SOUTHERN CHEROKEE COUNTY. 
SOPE CREEK CRESTED AROUND 11.1 FEET AT 1245 AM EDT. THIS IS BELOW 
THE FLOOD STAGE OF 12 FEET. THEREFORE THE FLASH FLOOD WARNING HAS 
BEEN CANCELLED. THE CREEK SHOULD CONTINUE TO FALL...BUT THERE MAY 
STILL BE SOME STANDING WATER ON ROADS FOR ANOTHER HOUR OR TWO.

$$

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.