Alert archive / Georgia / Flash Flood Warnings in 2008

Flash Flood Warning 18, NWS Atlanta, GA

December 10, 20088 counties in Georgia

NWS Atlanta, GA issued this flash flood warning at Dec 10, 2008, 5:53 AM EST for 8 counties in 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 10, 2008, 5:53 AM EST (10:53 UTC)
Expired
Dec 10, 2008, 11:42 AM EST
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

Counties Chattooga County, GA, Fannin County, GA, Floyd County, GA, Gilmer County, GA, Gordon County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 141 km from the middle of the area, began a volume at 10:56 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, 10.9 hours before the alert went out and 144 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 2008-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.19395878Sfc1 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
4 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
366 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 101053
FFWFFC
GAC055-111-115-123-129-213-295-313-101700-
/O.NEW.KFFC.FF.W.0018.081210T1053Z-081210T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
553 AM EST WED DEC 10 2008

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FANNIN COUNTY IN NORTH CENTRAL GEORGIA
  GILMER COUNTY IN NORTH CENTRAL GEORGIA
  CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  FLOYD COUNTY IN NORTHWEST GEORGIA
  GORDON COUNTY IN NORTHWEST GEORGIA
  MURRAY COUNTY IN NORTHWEST GEORGIA
  SOUTHEASTERN WALKER COUNTY IN NORTHWEST GEORGIA
  SOUTHERN WHITFIELD COUNTY IN NORTHWEST GEORGIA

* UNTIL NOON EST

* AT 549 AM EST...THE PUBLIC REPORTED FLASH FLOODING FROM
  THUNDERSTORMS AND HEAVY RAIN OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WHITESTONE...TILTON...TALONA...REDBUD...RAMHURST...PISGAH...
  OOSTANAULA...OAKMAN...NICKELSVILLE...MARION...LOVING...JAMES H.
  FLOYD STATE PARK...FORT MOUNTAIN STATE PARK...EVERETT SPRINGS...
  EPWORTH...CHERRY LOG...CHATTOOGAVILLE...AUDUBON...SHANNON...ROME...
  MCCAYSVILLE...LINDALE...FAIRMOUNT...ELLIJAY...CHATSWORTH...CAVE
  SPRING...CALHOUN AND BLUE RIDGE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...AS WELL AS HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS...OR WATERS OF UNKNOWN DEPTH...ON FOOT OR IN
AN AUTOMOBILE.

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 3498 8413 3493 8418 3488 8411 3480 8415
      3479 8410 3472 8410 3460 8419 3461 8419
      3458 8433 3454 8437 3455 8464 3441 8466
      3440 8500 3411 8504 3409 8542 3458 8552
      3459 8523 3489 8482 3492 8484 3500 8479

$$
2 follow-up statements
000 
WGUS72 KFFC 101325
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
825 AM EST WED DEC 10 2008

GAC055-111-115-123-129-213-295-313-101700-
/O.CON.KFFC.FF.W.0018.000000T0000Z-081210T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLOYD GA-CHATTOOGA GA-GORDON GA-GILMER GA-FANNIN GA-WALKER GA-
WHITFIELD GA-MURRAY GA-
825 AM EST WED DEC 10 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EST FOR
MURRAY...SOUTHERN WHITFIELD...SOUTHEASTERN WALKER...FANNIN...
GILMER...GORDON...CHATTOOGA AND FLOYD COUNTIES...

AT 817 AM EST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT 
WIDESPREAD HEAVY RAIN HAS FORCED NUMEROUS ROAD CLOSURES OVER THE 
WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TILTON...
RAMHURST...PISGAH...LOVING...GREGORY...FORT MOUNTAIN STATE PARK...
EPWORTH...CRANDALL...CHERRY LOG...MCCAYSVILLE...ELLIJAY...DALTON...
CHATSWORTH AND BLUE RIDGE

RAINFALL AMOUNTS OF TWO TO THREE INCHES...WITH LOCALLY HIGHER 
AMOUNTS...HAS FALLEN ACROSS THE WARNED AREA THIS MORNING. ADDITIONAL 
RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN THE WARNED AREA 
THIS MORNING. MANY SMALL CREEKS AND STREAMS ARE EXPERIENCING RAPID 
RISES.

IN HILLY TERRAIN THERE ARE LOW WATER CROSSINGS WHICH ARE POTENTIALLY 
DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED 
ROADS...FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY 
FLOWING WATER TO CARRY VEHICLES AWAY.

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 3498 8413 3493 8418 3488 8411 3480 8415
      3479 8410 3472 8410 3460 8419 3461 8419
      3458 8433 3454 8437 3455 8464 3441 8466
      3440 8500 3411 8504 3409 8542 3458 8552
      3459 8523 3489 8482 3492 8484 3500 8479

$$
000 
WGUS72 KFFC 101642
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1142 AM EST WED DEC 10 2008

GAC055-111-115-123-129-213-295-313-101715-
/O.CAN.KFFC.FF.W.0018.000000T0000Z-081210T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FLOYD GA-CHATTOOGA GA-GORDON GA-GILMER GA-FANNIN GA-WALKER GA-
WHITFIELD GA-MURRAY GA-
1142 AM EST WED DEC 10 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR MURRAY...SOUTHERN
WHITFIELD...SOUTHEASTERN WALKER...FANNIN...GILMER...GORDON...
CHATTOOGA AND FLOYD COUNTIES...

RAINFALL AMOUNTS OF 2 TO 4 INCHES OCCURRED FROM SUMMERVILLE THROUGH 
CALHOUN AND ELLIJAY TO BLUE RIDGE THIS MORNING. ONLY LIGHTER AMOUNTS 
OF RAIN ARE EXPECTED FOR THE REST OF THIS AFTERNOON AND TONIGHT IN
THIS AREA.

MOST OF THE CREEKS AND RIVERS IN THE PREVIOUSLY WARNED AREA ARE 
HAVING SIGNIFICANT RISES...BUT ARE EXPECTED TO STAY WITHIN THEIR 
BANKS.  HOWEVER...A FLOOD WATCH WILL REMAIN IN EFFECT FOR NORTH 
GEORGIA THROUGH NOON ON THURSDAY.

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 3498 8413 3493 8418 3488 8411 3480 8415
      3479 8410 3472 8410 3460 8419 3461 8419
      3458 8433 3454 8437 3455 8464 3441 8466
      3440 8500 3411 8504 3409 8542 3458 8552
      3459 8523 3489 8482 3492 8484 3500 8479

$$


16

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 4:25 AM ESTFlash Flood WatchFFCBanks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 30 more6 hr
Dec 10, 5:22 AM ESTTornado WarningFFCChattooga38 min
Dec 10, 7:39 AM ESTSevere Thunderstorm WarningFFCHaralson, Paulding, Polk33 min
Dec 10, 7:59 AM ESTSevere Thunderstorm WarningFFCCarroll34 min
Dec 10, 8:15 AM ESTHigh Wind WarningFFCFannin, Gilmer, Lumpkin, Towns, Union, White3 hr
Dec 10, 9:46 AM ESTSevere Thunderstorm WarningFFCDeKalb, Henry, Rockdale29 min
Dec 10, 10:11 AM ESTRiver Flood WarningFFCDade6 hr
Dec 10, 10:49 AM ESTFlood WatchFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more28 hr
Dec 10, 2:30 PM ESTRiver Flood WarningFFCForsyth, Fulton31 hr
Dec 10, 3:03 PM ESTTornado WarningFFCWilkinson27 min
Dec 10, 4:23 PM ESTWind AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more41 hr
Dec 10, 5:30 PM ESTTornado WarningFFCEmanuel, Treutlen28 min
Dec 10, 5:58 PM ESTAreal Flood WarningFFCForsyth4 hr

Nearby

Flash Flood Warnings in Georgia, 2008Every flash flood warning in 2008

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.