Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 41, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 21, 2009, 10:11 PM EDT for 4 counties in Georgia. It was in force for 6 hr. 2 reports 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 21, 2009, 10:11 PM EDT (02:11 UTC)
- Expired
- Sep 22, 2009, 4:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bibb County, GA, Houston County, GA, Peach County, GA, Twiggs County, GA
The radar
The Robins AFB radar (KJGX), 31 km from the middle of the area, began a volume at 02:10 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 21, 10:49 PM EDT | FLASH FLOOD | 2 Wsw Warner Robins, GA | PUBLIC REPORTED 4 FEET OF WATER COVERING A ROAD NEAR WRIGHTS MILL. |
| Sep 21, 10:58 PM EDT | FLASH FLOOD | 1 Wsw Warner Robins, GA | PUBLIC REPORTED A BRIDGE SUBMERGED IN WATER ON NELSON RD. LARGE DEBRIS WAS REPORTED FLOATING IN THE WATER. |
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 00:00Z, 2.2 hours before the alert went out and 109 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
- 835 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 624 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KFFC 220211
FFWFFC
GAC021-153-225-289-220800-
/O.NEW.KFFC.FF.W.0041.090922T0211Z-090922T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1011 PM EDT MON SEP 21 2009
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN BIBB COUNTY IN CENTRAL GEORGIA
NORTHEASTERN HOUSTON COUNTY IN CENTRAL GEORGIA
NORTHEASTERN PEACH COUNTY IN CENTRAL GEORGIA
TWIGGS COUNTY IN CENTRAL GEORGIA
* UNTIL 400 AM EDT
* AT 1004 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A LINE OF INTENSE THUNDERSTORMS CONTAINING VERY HEAVY RAIN FROM NEAR
BYRON TO EAST OF MACON. ALTHOUGH THE RAIN WILL TAPER OFF BY 11 PM...
RUNOFF FROM THE VERY HEAVY RAIN WILL LEAD TO FLASH FLOODING OF
CREEKS AND STREAMS AS WELL AS LOW LYING AND POOR DRAINAGE AREAS
THROUGH THE EARLY MORNING HOURS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BYRON...
LAKEWOOD...WARNER ROBINS...DRY BRANCH AND JEFFERSONVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
IF YOU SEE SIGNIFICANT FLOODING...MOVE TO A SAFE PLACE THEN CALL THE
NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.
&&
LAT...LON 3258 8388 3264 8384 3269 8376 3269 8374
3272 8378 3276 8375 3285 8340 3266 8329
3250 8346
$$1 follow-up statement
000
WGUS72 KFFC 220753
FFSFFC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
353 AM EDT TUE SEP 22 2009
GAC021-153-225-289-220800-
/O.CON.KFFC.FF.W.0041.000000T0000Z-090922T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOUSTON GA-PEACH GA-TWIGGS GA-BIBB GA-
353 AM EDT TUE SEP 22 2009
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 AM EDT FOR
SOUTHEASTERN BIBB...TWIGGS...NORTHEASTERN PEACH AND NORTHEASTERN
HOUSTON COUNTIES...
AT 345 AM EDT...THE SHOWERS HAVE DIMINISHED OVER THE WARNED AREA.
RADAR ESTIMATES OF 1 TO 3 INCHES HAVE OCCURRED SINCE 900 PM EDT
MONDAY.
THE WARNING WILL BE ALLOWED TO EXPIRE AT 400 AM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
&&
LAT...LON 3258 8388 3264 8384 3269 8376 3269 8374
3272 8378 3276 8375 3285 8340 3266 8329
3250 8346
$$
16The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 8:40 PM EDT | Flash Flood Warning | FFC | Baldwin, Greene, Hancock, Jasper, Jones, Morgan and 5 more | 6 hr |
| Sep 21, 9:07 PM EDT | Areal Flood Warning | FFC | Carroll, Cherokee, Cobb, Coweta, DeKalb, Douglas and 6 more | 18 hr |
| Sep 21, 9:48 PM EDT | Areal Flood Warning | FFC | Catoosa, Chattooga, Dade, Murray, Walker, Whitfield | 12 hr |
| Sep 21, 10:34 PM EDT | River Flood Warning | FFC | Baldwin, Washington, Wilkinson | 18 hr |
| Sep 21, 11:32 PM EDT | Flash Flood Warning | FFC | Dooly, Houston, Macon, Peach | 5 hr |
| Sep 21, 11:56 PM EDT | River Flood Warning | FFC | Bartow, Floyd | 11 hr |
| Sep 22, 7:04 AM EDT | River Flood Warning | FFC | DeKalb, Rockdale | 40 hr |
| Sep 22, 7:04 AM EDT | River Flood Warning | FFC | Newton, Rockdale | 51 hr |
| Sep 22, 7:04 AM EDT | River Flood Warning | FFC | Whitfield | 51 hr |
| Sep 22, 7:04 AM EDT | River Flood Warning | FFC | Putnam | 8 hr |
| Sep 22, 9:26 AM EDT | River Flood Warning | FFC | Murray, Whitfield | 15 hr |
| Sep 22, 9:26 AM EDT | River Flood Warning | FFC | Barrow, Jackson | 14 hr |
| Sep 22, 9:43 AM EDT | Areal Flood Warning | FFC | Catoosa, Chattooga, Dade, Murray, Walker, Whitfield | 24 hr |
| Sep 22, 12:05 PM EDT | Areal Flood Warning | FFC | Dooly | 6 hr |
| Sep 22, 1:52 PM EDT | River Flood Warning | FFC | Clayton, Fayette, Spalding | 9 hr |
| Sep 22, 2:29 PM EDT | Areal Flood Warning | FFC | Carroll, Cherokee, Cobb, Coweta, DeKalb, Douglas and 6 more | 18 hr |
| Sep 22, 5:54 PM EDT | River Flood Warning | FFC | Dooly | 18 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.