Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 46, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 26, 2009, 3:47 PM EDT for 5 counties in Georgia. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 26, 2009, 3:47 PM EDT (19:47 UTC)
- Expired
- Sep 26, 2009, 9:30 PM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carroll County, GA, Cherokee County, GA, Cobb County, GA, Douglas County, GA, Paulding County, GA
The radar
The Atlanta radar (KFFC), 58 km from the middle of the area, began a volume at 19:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 26, 4:20 PM EDT | FLASH FLOOD | 5 Nne Hiram, GA | BISHOP CREEK OUT OF ITS BANKS AND THREATENING HOMES IN BROOKS FARM AREA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.8 hours before the alert went out and 59 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
- 1105 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 824 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KFFC 261947
FFWFFC
GAC045-057-067-097-223-270130-
/O.NEW.KFFC.FF.W.0046.090926T1947Z-090927T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
347 PM EDT SAT SEP 26 2009
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN CHEROKEE COUNTY IN NORTH CENTRAL GEORGIA
COBB COUNTY IN NORTH CENTRAL GEORGIA
DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
CARROLL COUNTY IN NORTHWEST GEORGIA
PAULDING COUNTY IN NORTHWEST GEORGIA
* UNTIL 930 PM EDT
* AT 340 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF THUNDERSTORMS WITH HEAVY RAIN FROM NEAR CANTON THROUGH
DALLAS AND FRANKLIN INTO EAST CENTRAL ALABAMA. HEAVY RAINFALL
AMOUNTS UP TO TWO INCHES MAY OCCUR IN ONE HOUR AS THESE STORMS
MOVE THROUGH THE WARNED AREA. THIS MAY CAUSE SOME FLASH FLOODING
OF SMALL STREAMS AND CREEKS DUE TO SATURATED SOILS. RAINFALL
AMOUNTS UP TO ONE INCH HAVE ALREADY OCCURRED TODAY IN THE WARNED
AREA. THIS AREA IS STILL RECOVERING FROM FLOODING EARLIER THIS
WEEK.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AUSTELL...
POWDER SPRINGS...SMYRNA...MARIETTA...KENNESAW...ACWORTH...HIRAM...
DALLAS...WOODSTOCK...HOLLY SPRINGS...BUFFINGTON AND CANTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY...THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
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 3368 8521 3372 8504 3386 8503 3409 8480
3409 8466 3424 8464 3424 8426 3419 8426
3418 8435 3413 8437 3411 8442 3397 8437
3392 8444 3383 8446 3366 8467 3363 8475
3349 8486 3344 8493 3343 8530 3357 8533
$$
162 follow-up statements
000
WGUS72 KFFC 262321
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
721 PM EDT SAT SEP 26 2009
GAC045-057-067-097-223-270130-
/O.CON.KFFC.FF.W.0046.000000T0000Z-090927T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS GA-CARROLL GA-PAULDING GA-COBB GA-CHEROKEE GA-
721 PM EDT SAT SEP 26 2009
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR
SOUTHERN CHEROKEE...COBB...PAULDING...CARROLL AND DOUGLAS COUNTIES...
AT 715 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES
ONLY LIGHT RAIN PASSING OVER THE WARNED AREA AND THIS WILL CONTINUE
FOR ANOTHER HOUR OR TWO. TOTAL RAINFALL AMOUNTS OF 1 TO 2 INCHES
OCCURRED IN THE WARNED AREA WITH AROUND 3 INCHES IN CENTRAL PAULDING
AND EASTERN COBB COUNTIES.
SEVERAL PUBLIC REPORTS OF TEMPORARY STREET FLOODING HAVE BEEN
RECEIVED. THE NICKAJACK CREEK NEAR MABLETON IN COBB COUNTY WAS AT
9.2 FEET AND RISING. FLOOD STAGE IS 10 FEET. THE CREEK WILL LIKELY
CREST JUST BELOW FLOOD STAGE IN THE NEXT FEW HOURS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HIRAM...
SMYRNA...MARIETTA...KENNESAW...ACWORTH...DALLAS...WOODSTOCK...HOLLY
SPRINGS...BUFFINGTON AND CANTON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3368 8521 3372 8504 3386 8503 3409 8480
3409 8466 3424 8464 3424 8426 3419 8426
3418 8435 3413 8437 3411 8442 3397 8437
3392 8444 3383 8446 3366 8467 3363 8475
3349 8486 3344 8493 3343 8530 3357 8533
$$000
WGUS72 KFFC 270024
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
824 PM EDT SAT SEP 26 2009
GAC045-057-097-223-270027-
/O.CAN.KFFC.FF.W.0046.000000T0000Z-090927T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DOUGLAS GA-CARROLL GA-PAULDING GA-CHEROKEE GA-
824 PM EDT SAT SEP 26 2009
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHERN
CHEROKEE...PAULDING...CARROLL AND DOUGLAS COUNTIES...
RADAR INDICATES ONLY SPOTTY LIGHT RAIN IS PASSING OVER THE
PREVIOUSLY WARNED AREA. THE TEMPORARY STREET FLOODING OR SMALL
STREAM FLOODING THAT OCCURRED EARLIER WITH THE HEAVY RAIN HAVE
RECEDED.
LAT...LON 3409 8462 3411 8463 3411 8459 3409 8459
3408 8442 3405 8442 3397 8437 3392 8444
3383 8446 3375 8457 3381 8462 3381 8470
3383 8472 3408 8474
$$
GAC067-270130-
/O.CON.KFFC.FF.W.0046.000000T0000Z-090927T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COBB GA-
824 PM EDT SAT SEP 26 2009
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR COBB
COUNTY...
AT 815 PM EDT...THE NICKAJACK CREEK NEAR MABLETON WAS AT 10.2 FEET
AND RISING SLOWLY. FLOOD STAGE IS 10 FEET. THE CREEK WILL REMAIN
IN MINOR FLOOD FOR ANOTHER HOUR THEN SLOWLY FALL.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SMYRNA...MARIETTA...KENNESAW AND ACWORTH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3409 8462 3411 8463 3411 8459 3409 8459
3408 8442 3405 8442 3397 8437 3392 8444
3383 8446 3375 8457 3381 8462 3381 8470
3383 8472 3408 8474
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 2:56 AM EDT | Flash Flood Warning | FFC | Murray, Whitfield | 6 hr |
| Sep 26, 9:15 AM EDT | Flash Flood Warning | FFC | Chattooga, Floyd, Gordon, Murray, Walker, Whitfield | 6 hr |
| Sep 26, 12:21 PM EDT | Flash Flood Warning | FFC | Catoosa, Chattooga, Dade, Floyd, Walker, Whitfield | 6 hr |
| Sep 26, 3:24 PM EDT | Areal Flood Warning | FFC | Gordon, Murray, Whitfield | 4 hr |
| Sep 26, 4:20 PM EDT | Severe Thunderstorm Warning | FFC | Heard | 40 min |
| Sep 26, 5:00 PM EDT | Flash Flood Warning | FFC | DeKalb, Forsyth, Fulton, Gwinnett | 4 hr |
| Sep 26, 5:26 PM EDT | River Flood Warning | FFC | Gordon, Murray, Whitfield | 3 days |
| Sep 26, 5:46 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 44 min |
| Sep 26, 6:20 PM EDT | Severe Thunderstorm Warning | FFC | Putnam | 40 min |
| Sep 26, 6:35 PM EDT | Severe Thunderstorm Warning | FFC | Baldwin, Jones | 40 min |
| Sep 26, 6:40 PM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Marion, Muscogee, Talbot | 39 min |
| Sep 26, 6:50 PM EDT | River Flood Warning | FFC | Murray, Whitfield | 44 hr |
| Sep 26, 6:50 PM EDT | River Flood Warning | FFC | Whitfield | 69 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.