Alert archive / Georgia / Flash Flood Warnings in 2004
Flash Flood Warning 33, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 16, 2004, 9:35 PM EDT 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
- Sep 16, 2004, 9:35 PM EDT (01:35 UTC)
- Expired
- Sep 17, 2004, 3:00 AM EDT
- 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 01:34 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
Birmingham, AL (KBMX), launched 00:00Z, 1.6 hours before the alert went out and 230 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.
- Mixed-layer CAPE
- 10 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 798 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KFFC 170139
FFWATL
GAC067-170700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
935 PM EDT THU SEP 16 2004
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS EXTENDED THE
* FLASH FLOOD WARNING FOR SOPE CREEK IN...
COBB COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 300 AM EDT
* FOR THE SOPE CREEK NEAR MARIETTA...
THE LATEST STAGE WAS 16.6 FEET AT 9 PM THURSDAY.
FLOOD STAGE IS 12.0 FEET.
THE FORECAST FOR THE SOPE CREEK NEAR MARIETTA...
THE CREEK WILL BE CREST AROUND 17 FEET BY 1030 PM EDT.
THE CREEK WILL FALL BELOW FLOOD STAGE AROUND 3 AM EDT.
AT 17 FEET...MODERATE FLOODING OCCURS. EXPECT SIGNIFICANT FLOODING
OF YARDS AND SOME ROADS ALONG SOPE CREEK.
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
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 8:37 PM EDT | Flash Flood Warning | FFC | Bartow, Chattooga, Dade, Floyd, Gordon, Walker | 5 hr |
| Sep 16, 8:40 PM EDT | Flash Flood Warning | FFC | Clayton | 5 hr |
| Sep 16, 9:10 PM EDT | Flash Flood Warning | FFC | DeKalb, Fulton | 6 hr |
| Sep 16, 10:24 PM EDT | Flash Flood Warning | FFC | DeKalb, Fulton | 6 hr |
| Sep 16, 11:15 PM EDT | Flash Flood Warning | FFC | White | 6 hr |
| Sep 17, 3:21 AM EDT | Flash Flood Warning | FFC | DeKalb, Fulton | 5 hr |
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.