Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 17, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Sep 17, 2009, 4:09 PM EDT for Bibb County, Georgia. It was in force for 3 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 17, 2009, 4:09 PM EDT (20:09 UTC)
- Expired
- Sep 17, 2009, 7:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- None
County Bibb County, GA
The radar
The Robins AFB radar (KJGX), 38 km from the middle of the area, began a volume at 20:08 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 17, 4:15 PM EDT | FLASH FLOOD | 5 Nw Macon, GA | WATER COVERED BRIDGE ON MATTHEWS DRIVE OVER SAVAGE CREEK. |
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, 8.2 hours before the alert went out and 94 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
- 718 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 468 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS52 KFFC 172009
FFWFFC
GAC021-172315-
/O.NEW.KFFC.FF.W.0017.090917T2009Z-090917T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
409 PM EDT THU SEP 17 2009
THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL BIBB COUNTY IN CENTRAL GEORGIA
* UNTIL 715 PM EDT
* AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAIN MOVING OVER THE WARNED AREA.
RAINFALL AMOUNTS OF 2 TO 3 INCHES OF RAIN HAS OCCURRED SINCE
300 PM EDT.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PAYNE CITY
AND MACON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
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 3273 8381 3274 8382 3289 8382 3293 8374
3294 8370 3292 8369 3288 8365 3288 8359
3287 8358 3272 8359
$$
16The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 8:19 PM EDT | Flash Flood Warning | FFC | Morgan, Newton | 4 hr |
| Sep 17, 1:20 PM EDT | Flood Watch | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more | 5 days |
| Sep 17, 4:48 PM EDT | Flash Flood Warning | FFC | Forsyth, Fulton | 3 hr |
| Sep 17, 5:57 PM EDT | Flash Flood Warning | FFC | Morgan | 6 hr |
| Sep 17, 6:59 PM EDT | Areal Flood Warning | FFC | Bibb | 4 hr |
| Sep 17, 7:54 PM EDT | Flash Flood Warning | FFC | Greene, Oglethorpe, Taliaferro, Wilkes | 6 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.