Alert archive / Georgia / Flash Flood Warnings in 2015

Flash Flood Warning 46, NWS Atlanta, GA

December 25, 2015Catoosa County, Dade County, Walker County, Georgia

NWS Atlanta, GA issued this flash flood warning at Dec 25, 2015, 2:28 PM EST for Catoosa County, Dade County, Walker County, 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: Dec 25, 2015, 2:28 PM EST (19:28 UTC)
Expired: Dec 25, 2015, 8:30 PM EST
In force: 6 hr
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Flood severity: None

Counties Catoosa County, GA, Dade County, GA, Walker County, GA

The radar

The Northeast Alabama radar (KHTX), 89 km from the middle of the area, began a volume at 19:27 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
Dec 25, 3:30 PM EST	FLASH FLOOD	2 Ssw Plum Nelly, GA	PORTION OF NEWSOME GAP ROAD COMPLETELY WASHED AWAY NEAR INTERSECTION OF LAKEVIEW DRIVE.
Dec 25, 3:35 PM EST	FLASH FLOOD	2 Se New England, GA	MUDSLIDE TOOK OUT PORTION OF BURKHALTER GAP ROAD HALFWAY UP LOOKOUT MOUNTAIN. TIME ESTIMATED BY DADE COUNTY EMA.

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, 7.5 hours before the alert went out and 172 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 183 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 225 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

120 
WGUS52 KFFC 251928
FFWFFC
GAC047-083-295-260130-
/O.NEW.KFFC.FF.W.0046.151225T1928Z-151226T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
228 PM EST FRI DEC 25 2015

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WALKER COUNTY IN NORTHWESTERN GEORGIA...
  CATOOSA COUNTY IN NORTHWESTERN GEORGIA...
  DADE COUNTY IN NORTHWESTERN GEORGIA...

* UNTIL 830 PM EST FRIDAY

* AT 224 PM EST...DOPPLER RADAR CONTINUED TO SHOW WIDESPREAD SHOWERS
  WITH SOME EMBEDDED THUNDERSTORMS TRAINING OVER THE WARNDED AREA.
  ALTHOUGH RAINFALL RATES ARE GENERALLY LESS THAN ONE HALF INCH PER
  HOUR... THE CONTINUED ADDITIONAL RAINFALL OVER VERY SATURATED
  GROUND WILL CONTINUE TO KEEP CREEKS AND STREAMS OUT OF THEIR BANKS
  AND RESULT IN AREAS OF FLASH FLOODING. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LAFAYETTE...RINGGOLD...TRENTON...FORT OGLETHORPE...ROSSVILLE...
  CHICKAMAUGA...LOOKOUT MOUNTAIN...LA FAYETTE...RISING FAWN...
  LAKEVIEW...NAOMI...BOYNTON...SUTTLES MILL...NOBLE...COOPER
  HEIGHTS...NEW ENGLAND...COLE CITY...INDIAN SPRINGS...HOOKER AND
  FAIRVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR WARNING AT
NWSATLANTA.

&&

LAT...LON 3499 8498 3492 8501 3491 8502 3488 8501
      3486 8503 3486 8506 3482 8506 3482 8513
      3473 8517 3472 8505 3459 8506 3459 8553
      3498 8560

$$

1 follow-up statement

696 
WGUS72 KFFC 260040
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
740 PM EST FRI DEC 25 2015

GAC047-083-295-260130-
/O.CON.KFFC.FF.W.0046.000000T0000Z-151226T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WALKER GA-CATOOSA GA-DADE GA-
740 PM EST FRI DEC 25 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EST FRIDAY
FOR WALKER...CATOOSA AND DADE COUNTIES...

AT 736 PM EST...DOPPLER RADAR CONTINUES TO INDICATE MODERATE TO
LOCALLY HEAVY RAIN ACROSS MUCH OF NORTHWEST GEORGIA. UP TO 3 INCHES
OF RAIN HAS FALLEN SINCE THIS MORNING AND THE GROUNDS ARE EXTREMELY
SATURATED. 

ADDITIONAL RAINFALL OF 1/4 TO 1/2 INCH PER HOUR WILL CONTINUE
THROUGH THIS EVENING. WIDESPREAD FLOODING WITH ISOLATED FLASH
FLOODING WILL PERSIST.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LAFAYETTE...RINGGOLD...TRENTON...FORT OGLETHORPE...ROSSVILLE...
CHICKAMAUGA...LOOKOUT MOUNTAIN...LA FAYETTE...RISING FAWN...
LAKEVIEW...NAOMI...BOYNTON...SUTTLES MILL...NOBLE...COOPER HEIGHTS...
NEW ENGLAND...COLE CITY...INDIAN SPRINGS...HOOKER AND FAIRVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

IF YOU SEE SIGNIFICANT FLOODING CALL THE NATIONAL WEATHER SERVICE
TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6 OR TWEET US YOUR REPORT AT
NWSATLANTA.

&&

LAT...LON 3499 8498 3492 8501 3491 8502 3488 8501
      3486 8503 3486 8506 3482 8506 3482 8513
      3473 8517 3472 8505 3459 8506 3459 8553
      3498 8560

$$

DJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 24, 7:04 PM EST	Special Weather Statement	FFC	Harris, Meriwether	41 min
Dec 24, 7:32 PM EST	Special Weather Statement	FFC	Fayette	43 min
Dec 24, 7:44 PM EST	River Flood Warning	FFC	Coweta, Fayette	24 hr
Dec 24, 7:44 PM EST	River Flood Warning	FFC	DeKalb	24 hr
Dec 24, 7:44 PM EST	River Flood Warning	FFC	Newton, Rockdale	24 hr
Dec 24, 7:48 PM EST	Special Weather Statement	FFC	Chattahoochee, Marion	42 min
Dec 24, 8:19 PM EST	Flash Flood Warning	FFC	Chattahoochee, Stewart	6 hr
Dec 24, 8:35 PM EST	Special Weather Statement	FFC	Chattahoochee, Marion	55 min
Dec 24, 9:15 PM EST	River Flood Warning	FFC	Floyd	12 days
Dec 24, 9:27 PM EST	Special Weather Statement	FFC	Macon, Marion, Schley	63 min
Dec 24, 9:35 PM EST	River Flood Warning	FFC	Dade	70 hr
Dec 24, 9:45 PM EST	Severe Thunderstorm Warning	FFC	Macon, Schley, Taylor	45 min
Dec 24, 10:02 PM EST	River Flood Warning	FFC	Douglas, Fulton	24 hr
Dec 24, 10:15 PM EST	River Flood Warning	FFC	Cobb, Douglas	49 hr
Dec 24, 10:23 PM EST	River Flood Warning	FFC	Newton, Rockdale	48 hr
Dec 24, 10:30 PM EST	Special Weather Statement	FFC	Peach	30 min
Dec 24, 10:32 PM EST	Special Weather Statement	FFC	Peach	43 min
Dec 24, 11:07 PM EST	River Flood Warning	FFC	Gordon	11 days
Dec 24, 11:14 PM EST	Special Weather Statement	FFC	Bibb	46 min
Dec 24, 11:51 PM EST	River Flood Warning	FFC	Gordon	57 hr
Dec 25, 12:03 AM EST	Special Weather Statement	FFC	Muscogee	42 min
Dec 25, 1:02 AM EST	Areal Flood Warning	FFC	Coweta, Fayette, Harris, Lamar, Meriwether, Pike and 4 more	9 hr
Dec 25, 1:35 AM EST	River Flood Warning	FFC	Meriwether, Pike	69 hr
Dec 25, 2:08 AM EST	Flash Flood Warning	FFC	Harris, Meriwether, Talbot, Troup	6 hr
Dec 25, 3:24 AM EST	River Flood Warning	FFC	Gordon	62 hr
Dec 25, 3:30 AM EST	Special Weather Statement	FFC	Lamar, Monroe	45 min
Dec 25, 3:33 AM EST	Special Weather Statement	FFC	Troup	42 min
Dec 25, 4:43 AM EST	Special Weather Statement	FFC	Catoosa, Walker	47 min
Dec 25, 5:51 AM EST	Special Weather Statement	FFC	Dade	39 min
Dec 25, 5:57 AM EST	Special Weather Statement	FFC	Henry	48 min
Dec 25, 6:11 AM EST	River Flood Warning	FFC	Newton	3 days
Dec 25, 6:15 AM EST	River Flood Warning	FFC	Heard	24 hr
Dec 25, 6:19 AM EST	River Flood Warning	FFC	Jones, Monroe	64 hr
Dec 25, 6:23 AM EST	River Flood Warning	FFC	Cobb, Paulding	24 hr
Dec 25, 6:28 AM EST	Special Weather Statement	FFC	Catoosa, Dade	47 min
Dec 25, 7:44 AM EST	Special Weather Statement	FFC	Catoosa, Chattooga, Dade, Floyd, Gordon, Murray and 2 more	61 min
Dec 25, 8:19 AM EST	River Flood Warning	FFC	Heard	38 hr
Dec 25, 8:39 AM EST	Special Weather Statement	FFC	Murray	21 min
Dec 25, 9:20 AM EST	Special Weather Statement	FFC	Dade	55 min
Dec 25, 9:27 AM EST	Dense Fog Advisory	FFC	Bleckley, Crisp, Dodge, Dooly, Emanuel, Johnson and 9 more	3 hr
Dec 25, 9:32 AM EST	River Flood Warning	FFC	Catoosa	5 days
Dec 25, 9:36 AM EST	River Flood Warning	FFC	Floyd	14 days
Dec 25, 9:53 AM EST	River Flood Warning	FFC	Newton	60 hr
Dec 25, 10:19 AM EST	Special Weather Statement	FFC	Dade	71 min
Dec 25, 10:35 AM EST	Special Weather Statement	FFC	Catoosa, Walker	70 min
Dec 25, 10:44 AM EST	Flash Flood Warning	FFC	Catoosa, Dade, Walker	46 min
Dec 25, 11:31 AM EST	Special Weather Statement	FFC	Catoosa, Murray, Walker, Whitfield	44 min
Dec 25, 11:35 AM EST	Flash Flood Warning	FFC	Catoosa, Dade, Walker	3 hr
Dec 25, 11:48 AM EST	Flash Flood Warning	FFC	Murray, Whitfield	3 hr
Dec 25, 11:51 AM EST	Special Weather Statement	FFC	Chattooga	39 min
Dec 25, 11:56 AM EST	River Flood Warning	FFC	Newton, Walton	25 hr
Dec 25, 12:06 PM EST	Flash Flood Warning	FFC	Chattooga	3 hr
Dec 25, 12:12 PM EST	Special Weather Statement	FFC	Fannin, Gilmer	48 min
Dec 25, 12:23 PM EST	Flash Flood Warning	FFC	Fannin, Gilmer	3 hr
Dec 25, 12:48 PM EST	Special Weather Statement	FFC	Towns, Union	57 min
Dec 25, 12:59 PM EST	Flash Flood Warning	FFC	Floyd, Gordon	3 hr
Dec 25, 1:12 PM EST	River Flood Warning	FFC	Whitfield	24 hr
Dec 25, 1:13 PM EST	Flash Flood Warning	FFC	Towns, Union	3 hr
Dec 25, 1:29 PM EST	River Flood Warning	FFC	Jefferson, Washington	27 hr
Dec 25, 2:34 PM EST	River Flood Warning	FFC	Floyd	8 days
Dec 25, 2:41 PM EST	Flash Flood Warning	FFC	Murray, Whitfield	6 hr
Dec 25, 2:54 PM EST	Flash Flood Warning	FFC	Chattooga	6 hr
Dec 25, 3:03 PM EST	Flash Flood Warning	FFC	Fannin, Gilmer	6 hr
Dec 25, 4:26 PM EST	Areal Flood Warning	FFC	Floyd, Gordon	6 hr
Dec 25, 5:10 PM EST	River Flood Warning	FFC	Murray	24 hr
Dec 25, 5:10 PM EST	River Flood Warning	FFC	Gordon	7 days
Dec 25, 6:14 PM EST	River Flood Warning	FFC	Gordon, Murray, Whitfield	6 days

Nearby

Flash Flood Warnings in Georgia, 2015 Every flash flood warning in 2015

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.