Alert archive / Georgia / Flash Flood Warnings in 2009
Flash Flood Warning 56, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood warning at Dec 15, 2009, 1:09 AM EST for Sumter 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
- Dec 15, 2009, 1:09 AM EST (06:09 UTC)
- Expired
- Dec 15, 2009, 7:00 AM EST
- In force
- 6 hr
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Flood severity
- Major
County Sumter County, GA
The radar
The Robins AFB radar (KJGX), 110 km from the middle of the area, began a volume at 06:09 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 00:00Z, 6.2 hours before the alert went out and 148 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
- 12 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 520 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 243 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 150609 FFWFFC GAC261-151200- /O.NEW.KFFC.FF.W.0056.091215T0609Z-091215T1200Z/ /00000.3.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 109 AM EST TUE DEC 15 2009 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR WATER OVERTOPPING DAMS IN... SUMTER COUNTY IN WEST CENTRAL GEORGIA * UNTIL 700 AM EST * AT 1258 AM EST...THE MCMATH MILLPOND...MURPHY MILL AND LAKE COLLINS DAMS NEAR AMERICUS WERE BEING OVERTOPPED WITH WATER. SEVERAL ROADS NEAR THESE DAMS HAVE FLOWING WATER OVER THEM. SUMTER COUNTY EMERGENCY OFFICIALS HAVE ALREADY RESCUED TWO PEOPLE IN A CAR ON MURPHY MILL DAM ROAD. THE DAMS ARE BEING MONITORED FOR POTENTIAL FAILURE AND THE EMA DIRECTOR HAS REQUESTED THAT MOTORISTS STAY AWAY FROM THESE AREAS. PEOPLE BELOW THESE DAMS SHOULD TAKE IMMEDIATE ACTION BY MONITORING LOCAL RADIO OR TELEVISION AND FOLLOWING INSTRUCTIONS FOR ANY REQUIRED EVACUATION AS OUTLINED BY LOCAL EMERGENCY OFFICIALS. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF 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. 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. 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 3198 8440 3214 8441 3216 8404 3200 8403 $$
1 follow-up statement
000 WGUS72 KFFC 150832 FFSFFC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PEACHTREE CITY GA 332 AM EST TUE DEC 15 2009 GAC261-151200- /O.CON.KFFC.FF.W.0056.000000T0000Z-091215T1200Z/ /00000.3.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SUMTER GA- 332 AM EST TUE DEC 15 2009 ...A FLASH FLOOD WARNING FOR WATER OVERTOPPING DAMS REMAINS IN EFFECT UNTIL 700 AM EST FOR NORTHERN SUMTER COUNTY... AT 326 AM EST...THE MCMATH MILLPOND...MURPHY MILL AND LAKE COLLINS DAMS NEAR AMERICUS WERE STILL BEING OVERTOPPED WITH WATER. CONDITIONS REMAIN UNCHANGED WITH SEVERAL ROADS NEAR THESE DAMS HAVING WATER FLOW OVER THEM. SUMTER COUNTY EMERGENCY MANAGEMENT OFFICIALS ARE CONTINUING TO MONITOR THE DAMS FOR POTENTIAL FAILURE. THE EMA DIRECTOR STILL REQUESTS THAT MOTORISTS STAY AWAY FROM THESE AREAS. PEOPLE BELOW THESE DAMS SHOULD TAKE IMMEDIATE ACTION BY MONITORING LOCAL RADIO OR TELEVISION AND FOLLOWING INSTRUCTIONS FOR ANY REQUIRED EVACUATION AS OUTLINED BY LOCAL EMERGENCY OFFICIALS. AFFECTED LOCATIONS INCLUDE AMERICUS AND PLAINS PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. TURN AROUND DONT DROWN. IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6. && LAT...LON 3198 8440 3214 8441 3216 8404 3200 8403 $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 7:24 PM EST | Areal Flood Warning | FFC | Bleckley, Dodge, Emanuel, Johnson, Laurens, Montgomery and 6 more | 23 hr |
| Dec 14, 8:14 PM EST | Flash Flood Warning | FFC | Crisp | 6 hr |
| Dec 14, 10:13 PM EST | River Flood Warning | FFC | Montgomery, Telfair, Wheeler | 16 days |
| Dec 15, 1:40 AM EST | River Flood Warning | FFC | Bleckley, Pulaski | 11 days |
| Dec 15, 1:40 AM EST | River Flood Warning | FFC | Montgomery, Treutlen, Wheeler | 20 days |
| Dec 15, 7:24 AM EST | Flash Flood Warning | FFC | Sumter | 3 hr |
| Dec 15, 4:03 PM EST | River Flood Warning | FFC | Pulaski | 35 hr |
| Dec 15, 4:03 PM EST | River Flood Warning | FFC | Sumter | 9 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.