Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 26, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 19, 2009, 11:33 AM EDT for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 6 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 19, 2009, 11:33 AM EDT (15:33 UTC)
- Expired
- Sep 19, 2009, 5:30 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 15:36 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 12:00Z, 3.6 hours before the alert went out and 53 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
- 1463 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 466 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 54 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 191533
FFWFFC
GAC089-121-135-192130-
/O.NEW.KFFC.FF.W.0026.090919T1533Z-090919T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1133 AM EDT SAT SEP 19 2009
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DEKALB COUNTY IN NORTH CENTRAL GEORGIA
CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA
WEST CENTRAL GWINNETT COUNTY IN NORTH CENTRAL GEORGIA
* UNTIL 530 PM EDT SATURDAY
* AT 1127 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM THUNDERSTORMS MOVING OVER THE WARNED AREA.
RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE LIKELY OVER THE WARNED AREA
AND THIS WILL PUSH PEACHTREE CREEK...CROOKED CREEK...NANCY CREEK
...SOUTH RIVER...AND OTHER CREEKS AND STREAMS OVER FLOOD STAGE.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD...
NORCROSS...LILBURN...PINE LAKE...AVONDALE ESTATES...DECATUR...STONE
MOUNTAIN...CLARKSTON...TUCKER...DRUID HILLS...DORAVILLE...
CHAMBLEE...DUNWOODY AND SANDY SPRINGS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...AS WELL AS HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3365 8412 3365 8433 3382 8434 3380 8447
3395 8437 3395 8417 3390 8410
$$1 follow-up statement
000
WGUS72 KFFC 191725
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
125 PM EDT SAT SEP 19 2009
GAC089-121-135-192130-
/O.CON.KFFC.FF.W.0026.000000T0000Z-090919T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEKALB GA-GWINNETT GA-FULTON GA-
125 PM EDT SAT SEP 19 2009
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
CENTRAL FULTON...WEST CENTRAL GWINNETT AND DEKALB COUNTIES...
AT 123 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SHOWERS AND THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE
WARNED AREA. THE NORTH FORK OF PEACHTREE CREEK IS RISING RAPIDLY...
AS IS THE SOUTH RIVER FLOWING INTO SOUTHERN DEKALB COUNTY. BOTH ARE
AROUND A FOOT BELOW FLOOD STAGE AND WILL CONTINUE TO RISE AS RAIN
CONTINUES.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BUCKHEAD...
NORCROSS...LILBURN...TUCKER...DORAVILLE...CHAMBLEE...DUNWOODY AND
SANDY SPRINGS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...AS WELL AS HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3365 8412 3365 8433 3382 8434 3380 8447
3395 8437 3395 8417 3390 8410
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 1:58 AM EDT | River Flood Warning | FFC | Pulaski | 8 hr |
| Sep 19, 10:27 AM EDT | Flash Flood Warning | FFC | Clayton, Fayette, Fulton | 6 hr |
| Sep 19, 4:32 PM EDT | Areal Flood Warning | FFC | Clayton, Fulton | 6 hr |
| Sep 19, 5:30 PM EDT | River Flood Warning | FFC | DeKalb, Rockdale | 4 hr |
| Sep 19, 5:30 PM EDT | River Flood Warning | FFC | Newton, Rockdale | 5 days |
Nearby
Flash Flood Warnings in Georgia, 2009Every flash flood warning in 2009
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.