Alert archive / Georgia / Flash Flood Warnings in 2009

Flash Flood Warning 19, NWS Atlanta, GA

September 17, 2009Morgan County, Georgia

NWS Atlanta, GA issued this flash flood warning at Sep 17, 2009, 5:57 PM EDT for Morgan County, Georgia. It was in force for 6 hr. 1 report 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
Sep 17, 2009, 5:57 PM EDT (21:57 UTC)
Expired
Sep 17, 2009, 11:45 PM EDT
In force
6 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
None

County Morgan County, GA

The radar

The Robins AFB radar (KJGX), 105 km from the middle of the area, began a volume at 21:56 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.

What was reported inside it

TimeReportWhereRemark
Sep 17, 8:35 PM EDTFLASH FLOOD6 N Madison, GALITTLE SANDY CREEK OUT OF ITS BANKS AT GEORGIA HIGHWAY 83 AND PROSPECT ROAD. BRIDGE WASHED OUT AT THIS LOCATION AND ROAD CLOSED. WATER ALSO FLOWING OVER THE BRIDGES ON U.S. 441 IN THE VICINITY.

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, 10.0 hours before the alert went out and 101 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 12:00Z on 2009-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 718 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 12:00Z on 2009-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
718 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KFFC 172157
FFWFFC
GAC211-180345-
/O.NEW.KFFC.FF.W.0019.090917T2157Z-090918T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
557 PM EDT THU SEP 17 2009

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 1145 PM EDT

* AT 549 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED  
  FLOODING IN SOUTHERN MORGAN COUNTY ALONG HUNNICUT CREEK 
  AND ALONG GEORGIA HIGHWAY 83 IN SOUTHERN MORGAN COUNTY.
  A LAKE IN THIS AREA WAS ALSO CLOSE TO SPILLING OVER THE
  DAM. THUNDERSTORMS WITH HEAVY RAIN HAVE DUMPED UP TO 2 INCHES
  OF RAIN DURING THE PAST HOUR. ADDITIONAL RAINFALL OF
  1 TO 2 INCHES WILL BE POSSIBLE DURING THE NEXT HOUR AS
  HEAVY RAIN AND THUNDERSTORMS MOVE NORTH FROM PUTNAM AND
  JASPER COUNTY. THE GROUND IS TOTALLY SATURATED AND CANNOT
  ABSORB ADDITIONAL RAINFALL. ADDITIONAL FLOODING AND FLASH
  FLOODING WILL BE POSSIBLE.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
  MADISON...RUTLEDGE...BOSTWICK...GODFREY...AND BUCKHEAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA. THIS WILL OCCUR ON TOTALLY SATURATED GROUND.

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.

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.

A FLOOD WATCH REMAINS IN EFFECT FOR THE AREA THROUGH SATURDAY 
MORNING.

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 3348 8329 3344 8353 3353 8368 3360 8368
      3370 8359 3381 8352 3380 8347 3372 8345
      3370 8340 3364 8336 3360 8335 3355 8327

$$
2 follow-up statements
000 
WGUS72 KFFC 172330
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
730 PM EDT THU SEP 17 2009

GAC211-180345-
/O.CON.KFFC.FF.W.0019.000000T0000Z-090918T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN GA-
730 PM EDT THU SEP 17 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR
MORGAN COUNTY...

AT 725 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS CONTINUED TO REPORT 
AREAS OF FLOODING IN MORGAN COUNTY...PARTICULARLY ALONG HUNNICUT 
CREEK AND GEORGIA HIGHWAY 83...BOTH SOUTH AND NORTH OF MADISON.  
WATER WAS OVER THE ROAD AT SEVERAL SPOTS ALONG GEORGIA HIGHWAY 83 
FROM DRAINAGE DITCHES THAT HAD OVERFLOWED.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
BOSTWICK...GODFREY...MADISON...RUTLEDGE...AND BUCKHEAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS UP TO 6 INCHES HAVE FALLEN IN PARTS OF 
MADISON COUNTY DURING THE PAST 24 HOURS. RAINFALL OF 2 TO 3 INCHES 
HAS FALLEN IN MUCH OF THE COUNTY DURING THE PAST HOUR...AND AN 
ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE DURING THE NEXT HOUR. 

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.

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.

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.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE AREA THROUGH SATURDAY 
MORNING.

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 3348 8329 3344 8353 3353 8368 3360 8368
      3370 8359 3381 8352 3380 8347 3372 8345
      3370 8340 3364 8336 3360 8335 3355 8327

$$



19
000 
WGUS72 KFFC 180102
FFSFFC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
902 PM EDT THU SEP 17 2009

GAC211-180345-
/O.CON.KFFC.FF.W.0019.000000T0000Z-090918T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORGAN GA-
902 PM EDT THU SEP 17 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT FOR
MORGAN COUNTY...

AT 854 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT THE 
BRIDGE ON GEORGIA HIGHWAY 83 AT PROSPECT ROAD NORTH OF MADISON HAD 
BEEN WASHED BY FLOOD WATERS FROM LITTLE SANDY CREEK. WATER WAS ALSO 
FLOWING OVER U.S. HIGHWAY 441 IN THE AREA AND WAS ON THE VERGE OF 
BEING CLOSED.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BOSTWICK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MUCH OF MORGAN COUNTY HAS SEEN MORE THAN 5 INCHES OF RAINFALL DURING 
THE PAST 24 HOURS. ALTHOUGH THE VERY HEAVY RAINFALL EARLIER THIS 
EVENING HAS DIMINISHED AT THE CURRENT TIME...RAIN CONTINUES IN THE 
AREA AND ADDITIONAL HEAVY RAIN IS POSSIBLE OVERNIGHT. A FLOOD WATCH 
REMAINS IN EFFECT FOR THE AREA THROUGH SATURDAY MORNING.

IN ADDITION TO FLOODING ALONG LITTLE SANDY CREEK...FLOODING IS ALSO 
LIKELY ALONG HARD LABOR CREEK...HUNNICUT CREEK...BIG INDIAN 
CREEK...JACKS CREEK...AND LITTLE RIVER...ALL IN MORGAN COUNTY.

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.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

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 3348 8329 3344 8353 3353 8368 3360 8368
      3370 8359 3381 8352 3380 8347 3372 8345
      3370 8340 3364 8336 3360 8335 3355 8327

$$



19

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 16, 8:19 PM EDTFlash Flood WarningFFCMorgan, Newton4 hr
Sep 17, 1:20 PM EDTFlood WatchFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more5 days
Sep 17, 4:09 PM EDTFlash Flood WarningFFCBibb3 hr
Sep 17, 4:48 PM EDTFlash Flood WarningFFCForsyth, Fulton3 hr
Sep 17, 6:59 PM EDTAreal Flood WarningFFCBibb4 hr
Sep 17, 7:54 PM EDTFlash Flood WarningFFCGreene, Oglethorpe, Taliaferro, Wilkes6 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.