Alert archive / Georgia / Flash Flood Warnings in 2004

Flash Flood Warning 10, NWS Atlanta, GA

July 25, 2004Fulton County, Georgia

NWS Atlanta, GA issued this flash flood warning at Jul 25, 2004, 11:31 PM EDT for Fulton County, Georgia. It was in force for 15 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
Jul 25, 2004, 11:31 PM EDT (03:31 UTC)
Expired
Jul 26, 2004, 2:30 PM EDT
In force
15 hr
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Fulton County, GA

The radar

The Atlanta radar (KFFC), 48 km from the middle of the area, began a volume at 03:31 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, 3.5 hours before the alert went out and 47 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 2004-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 266 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 2004-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
266 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1762 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
8 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 260333
FFWATL
GAC121-260630-
                            
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1131 PM EDT SUN JUL 25 2004

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR PROCTOR CREEK IN...
  FULTON COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 230 AM

* NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERAL INCHES OF
  RAIN HAS FALLEN OVER PROCTOR CREEK IN THE LAST FEW HOURS.

* FOR THE PROCTOR CREEK NEAR ATLANTA...
   MINOR FLOODING IS FORECAST.
  THE LATEST STAGE WAS 12.1 FEET AT 11 PM SUNDAY.
  FLOOD STAGE IS 8.0 FEET.
  THE FORECAST FOR THE PROCTOR CREEK NEAR ATLANTA... 
      THE CREEK WILL FALL BELOW FLOOD STAGE AROUND 01 AM MONDAY.

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 3382 8448 3376 8449 3374 8441 3380 8442


$$
1 follow-up statement
000 
WGUS72 KFFC 260433
FFSATL
GAC121-260500-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1227 AM EDT MON JUL 26 2004

...THE FLASH FLOOD WARNING FOR PROCTOR CREEK IN FULTON COUNTY HAS 
BEEN CANCELLED...

PROCTOR CREEK QUICKLY REACHED A CREST OF 12.34 FEET AT 1130 PM 
SUNDAY EVENING AND THEN BEGAN TO FALL. THE CREEK FELL BELOW THE
FLOOD STAGE OF 8 FEET SHORTLY AFTER MIDNIGHT. AT 1215 AM THE
STAGE READING WAS 6.28 FEET. THE HEAVY RAIN HAS DIMINISHED AND THE
CREEK SHOULD CONTINUE TO SUBSIDE. 

THERE IS NO LONGER A THREAT FOR FLASH FLOODING ALONG AREA CREEKS...
STREAMS...OR ROADWAYS. THEREFORE...THE FLASH FLOOD WARNING HAS BEEN
CANCELLED.

LAT...LON 3351 8483 3351 8483 3362 8474 3384 8444
      3391 8443 3396 8436 3411 8442 3418 8435
      3419 8426 3411 8426 3405 8412 3395 8428
      3396 8434 3366 8435 3366 8445 3356 8446
      3351 8460

$$

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.