Alert archive / Georgia / Flash Flood Warnings in 2007

Flash Flood Warning 6, NWS Atlanta, GA

September 14, 2007Fannin County, Georgia

NWS Atlanta, GA issued this flash flood warning at Sep 14, 2007, 7:12 AM EDT for Fannin County, Georgia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 14, 2007, 7:12 AM EDT (11:12 UTC)
Expired
Sep 14, 2007, 10:15 AM EDT
In force
3 hr
Issued by
NWS Atlanta, GA
Area
Whole counties

County Fannin County, GA

The radar

The Northeast Alabama radar (KHTX), 161 km from the middle of the area, began a volume at 11:14 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, 11.2 hours before the alert went out and 167 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 2007-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 255 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 2007-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
255 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
855 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 141113
FFWFFC
GAC111-141415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
712 AM EDT FRI SEP 14 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FANNIN COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 1015 AM EDT

* AT 712 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  HEAVY RAIN FROM A CLUSTER OF SHOWERS AND THUNDERSTORM TRAINING     
  ACROSS NORTH FANNIN COUNTY. THESE STORMS ARE MOVING EAST NORTHEAST 
  AT 15 MPH.

* OTHER LOCATIONS IN THE WARNED ARE INCLUDE BUT ARE NOT LIMITED TO   
  OASIS...EPWORTH...MCCAYSVILLE AND BLUE RIDGE.

RAINFALL AMOUNTS OF 2 TO 3 INCHES HAVE FALLEN OVER NORTHWEST FANNIN 
COUNTY AND HEAVY RAIN WILL CONTINUE TO SPREAD EASTWARD ACROSS NORTH 
FANNIN COUNTY OVER THE NEXT HOUR. 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.

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 3485 8446 3485 8447 3485 8461 3486 8462
      3490 8462 3499 8461 3500 8421 3486 8419
TIME...MOT...LOC 1108Z 260DEG 14KT 3493 8448

$$
1 follow-up statement
000 
WGUS72 KFFC 141407
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1007 AM EDT FRI SEP 14 2007

GAC111-141430-
FANNIN GA-
1007 AM EDT FRI SEP 14 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 AM EDT FOR FANNIN
COUNTY...

RAINFALL HAS TAPERED OFF IN THE WARNED AREA AND THE THREAT FOR FLASH 
FLOODING HAS ENDED. STREAMS AND CREEKS WILL REMAIN AT HIGH LEVELS 
FOR THE NEXT FEW HOURS BEFORE RECEDING LATER THIS MORNING. 

DO NOT ALLOW CHILDREN TO PLAY NEAR RUNNING WATER.

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

LAT...LON 3485 8446 3485 8447 3485 8461 3486 8462
      3490 8462 3499 8461 3500 8421 3486 8419
TIME...MOT...LOC 1407Z 260DEG 14KT 3456 8356

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 6:18 AM EDTFlash Flood WarningFFCMurray, Whitfield3 hr
Sep 14, 1:46 PM EDTTornado WarningFFCWalker29 min
Sep 14, 2:33 PM EDTTornado WarningFFCMurray27 min
Sep 14, 3:41 PM EDTTornado WarningFFCDouglas12 min
Sep 14, 4:20 PM EDTSevere Thunderstorm WarningFFCBanks, Jackson25 min
Sep 14, 4:51 PM EDTSevere Thunderstorm WarningFFCTaliaferro, Wilkes24 min
Sep 14, 5:08 PM EDTSevere Thunderstorm WarningFFCHenry, Rockdale37 min
Sep 14, 5:24 PM EDTSevere Thunderstorm WarningFFCNewton36 min
Sep 14, 5:29 PM EDTSevere Thunderstorm WarningFFCPike, Upson46 min
Sep 14, 6:26 PM EDTSevere Thunderstorm WarningFFCGreene, Morgan34 min

Nearby

Flash Flood Warnings in Georgia, 2007Every flash flood warning in 2007

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.