Alert archive / Georgia / Flash Flood Warnings in 2009

Flash Flood Warning 52, NWS Atlanta, GA

December 9, 2009Chattooga County, Floyd County, Walker County, Georgia

NWS Atlanta, GA issued this flash flood warning at Dec 9, 2009, 1:31 AM EST for Chattooga County, Floyd County, Walker County, Georgia. It was in force for 6 hr. 3 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
Dec 9, 2009, 1:31 AM EST (06:31 UTC)
Expired
Dec 9, 2009, 7:30 AM EST
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Chattooga County, GA, Floyd County, GA, Walker County, GA

The radar

The Northeast Alabama radar (KHTX), 92 km from the middle of the area, began a volume at 06:31 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

TimeReportWhereRemark
Dec 9, 2:00 AM ESTFLASH FLOOD5 Nw Summerville, GA911 REPORTED 17-18 ROADS CLOSED...INCLUDING BEAVERS ROAD AND DOVER HILL...AMONG OTHERS.
Dec 9, 4:30 AM ESTFLASH FLOOD7 Sw Dalton, GASTOVER CREEK WASHED OUT STOVER CREEK ROAD. SIGNIFICANT DAMAGE TO THREE...SIX FOOT DIAMETER PIPES. WHITFIELD COUNTY MOBILE EMERGENCY COMMAND CENTER WILL BE ON THE SEEN THROUGHOUT THE NIGHT.
Dec 9, 5:30 AM ESTFLASH FLOOD7 Ese Summerville, GATHE ARMUCHEE CREEK CAME OUT OF ITS BANKS AND FLOODED THE CRAWL SPACE OF A HOME.

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, 6.5 hours before the alert went out and 150 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2009-12-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2009-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
449 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS52 KFFC 090631
FFWFFC
GAC055-115-295-091230-
/O.NEW.KFFC.FF.W.0052.091209T0631Z-091209T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
131 AM EST WED DEC 9 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  NORTHEASTERN FLOYD COUNTY IN NORTHWEST GEORGIA
  SOUTHERN WALKER COUNTY IN NORTHWEST GEORGIA

* UNTIL 730 AM EST

* AT 127 AM EST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED TWO ROADS 
WERE CLOSED DUE TO FLOODING IN THE ROSSVILLE AREA. ADDITIONAL 
THUNDERSTORMS APPROACHING FROM ALABAMA WILL TRACK OVER 
CHATTOOGA...NORTHERN FLOYD...AND SOUTHERN WALKER COUNTIES... 
RESULTING IN ADDITIONAL HEAVY RAINFALL AND POTENTIALLY MORE 
SIGNIFICANT FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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 CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3471 8518 3472 8514 3471 8505 3463 8505
      3459 8506 3459 8508 3454 8507 3453 8509
      3446 8510 3438 8548 3460 8553

$$
2 follow-up statements
000 
WGUS72 KFFC 090700
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
200 AM EST WED DEC 9 2009

GAC055-115-295-091230-
/O.CON.KFFC.FF.W.0052.000000T0000Z-091209T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLOYD GA-CHATTOOGA GA-WALKER GA-
200 AM EST WED DEC 9 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM EST FOR
SOUTHERN WALKER...CHATTOOGA AND NORTHEASTERN FLOYD COUNTIES...

AT 158 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING FLASH 
FLOODING.  THESE STORMS WERE LOCATED NEAR CLOUDLAND TO VILLANOW... 
MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SUBLIGNA...NAOMI...SUTTLES MILL...EVERETT SPRINGS...VILLANOW AND LAKE
MARVIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM EST WEDNESDAY MORNING
FOR NORTHWESTERN GEORGIA.

&&

LAT...LON 3471 8518 3472 8514 3471 8505 3463 8505
      3459 8506 3459 8508 3454 8507 3453 8509
      3446 8510 3438 8548 3460 8553

$$
000 
WGUS72 KFFC 091059
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
559 AM EST WED DEC 9 2009

GAC055-115-295-091230-
/O.CON.KFFC.FF.W.0052.000000T0000Z-091209T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLOYD GA-CHATTOOGA GA-WALKER GA-
559 AM EST WED DEC 9 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM EST FOR
SOUTHERN WALKER...CHATTOOGA AND NORTHEASTERN FLOYD COUNTIES...

AS OF 555 AM EST...THE RAIN HAD ENDED ACROSS FAR NORTHWEST GEORGIA. 
HOWEVER...4 TO 6 INCHES OF RAIN HAS FALLEN ACROSS SOUTHERN WALKER 
AND MUCH OF CHATTOOGA COUNTY. THE RUNOFF FROM THIS RAIN CONTINUES TO 
FILL AREA CREEKS AND STREAMS CAUSING WATER LEVELS TO RISE WELL ABOVE 
BANKFULL.

AT 530 AM EST...THE STAGE ON THE CHATTOOGA RIVER NEAR SUMMERVILLE IS 
13.3 FEET AND CONTNIUES TO RISE. THE RIVER IS EXPECTED TO CREST 
AROUND 14.3 FEET THIS AFTERNOON. THIS IS 0.3 FEET ABOVE FLOOD STAGE.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EVERETT
SPRINGS...LAKE MARVIN...SUBLIGNA...VILLANOW...SUTTLES MILL AND NAOMI.

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. BE EXTREMELY CAREFUL THIS MORNING ON YOUR DRIVE TO WORK OR 
SCHOOL 

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 3471 8518 3472 8514 3471 8505 3463 8505
      3459 8506 3459 8508 3454 8507 3453 8509
      3446 8510 3438 8548 3460 8553

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 9, 12:46 AM ESTSevere Thunderstorm WarningFFCCatoosa, Dade, Walker29 min
Dec 9, 1:01 AM ESTSevere Thunderstorm WarningFFCChattooga, Floyd, Walker44 min
Dec 9, 1:18 AM ESTSevere Thunderstorm WarningFFCGordon, Murray, Whitfield42 min
Dec 9, 2:12 AM ESTRiver Flood WarningFFCForsyth, Fulton41 hr
Dec 9, 2:23 AM ESTSevere Thunderstorm WarningFFCFloyd, Polk32 min
Dec 9, 2:40 AM ESTFlash Flood WarningFFCGordon, Murray, Whitfield6 hr
Dec 9, 3:48 AM ESTRiver Flood WarningFFCClarke, Greene, Oconee5 days
Dec 9, 3:53 AM ESTSevere Thunderstorm WarningFFCCoweta, Fayette22 min
Dec 9, 3:59 AM ESTRiver Flood WarningFFCDade19 hr
Dec 9, 4:03 AM ESTSevere Thunderstorm WarningFFCClayton, Henry, Newton, Rockdale, Spalding27 min
Dec 9, 4:18 AM ESTTornado WarningFFCBarrow, Oconee, Walton27 min
Dec 9, 4:28 AM ESTSevere Thunderstorm WarningFFCButts, Clarke, Jasper, Morgan, Newton, Walton28 min
Dec 9, 4:33 AM ESTSevere Thunderstorm WarningFFCClarke, Jackson, Madison, Oconee, Oglethorpe43 min
Dec 9, 5:17 AM ESTSevere Thunderstorm WarningFFCGreene, Hancock, Putnam, Taliaferro28 min
Dec 9, 5:44 AM ESTSevere Thunderstorm WarningFFCHancock, Taliaferro, Warren, Wilkes31 min
Dec 9, 5:50 AM ESTSevere Thunderstorm WarningFFCSumter, Webster25 min
Dec 9, 7:08 AM ESTSevere Thunderstorm WarningFFCCrisp, Wilcox52 min
Dec 9, 7:29 AM ESTRiver Flood WarningFFCChattooga32 hr
Dec 9, 7:29 AM ESTSevere Thunderstorm WarningFFCDodge, Laurens, Treutlen46 min
Dec 9, 8:03 AM ESTRiver Flood WarningFFCDawson, Forsyth8 hr
Dec 9, 8:09 AM ESTRiver Flood WarningFFCWhitfield62 hr
Dec 9, 8:09 AM ESTRiver Flood WarningFFCGordon, Murray, Whitfield69 hr
Dec 9, 10:46 AM ESTRiver Flood WarningFFCMurray, Whitfield34 hr
Dec 9, 2:10 PM ESTRiver Flood WarningFFCBibb, Houston, Jones, Monroe, Twiggs18 hr
Dec 9, 3:38 PM ESTRiver Flood WarningFFCFloyd, Gordon39 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.