Alert archive / Georgia / River Flood Warnings in 2017

River Flood Warning 77, NWS Atlanta, GA

September 11, 2017Forsyth County, Fulton County, Georgia

NWS Atlanta, GA issued this river flood warning at Sep 11, 2017, 7:57 PM EDT for Forsyth County, Fulton County, Georgia. It took effect at Sep 11, 2017, 8:21 PM EDT. It was in force for 58 hr.

The area

The outline as issued.

The facts

Issued
Sep 11, 2017, 7:57 PM EDT (23:57 UTC)
In effect from
Sep 11, 2017, 8:21 PM EDT
Expired
Sep 14, 2017, 6:21 AM EDT
In force
58 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
Minor

Counties Forsyth County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 83 km from the middle of the area, began a volume at 23:57 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 river

Written for the forecast point Big Creek near Alpharetta (APHG1). The gauge peaked at 7.10 ft at Sep 12, 2017, 2:00 PM EDT.

actionminormoderate51009/1109/1209/1309/1409/15
Action stage
6 ft
Minor stage
7 ft
Moderate stage
11 ft
Major stage
13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02335700, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

595 
WGUS42 KFFC 112357
FLWFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Peachtree City GA
757 PM EDT Mon Sep 11 2017

...The National Weather Service in Peachtree City has issued a Flood 
Warning for the following rivers in Georgia...

  Big Creek near Alpharetta affecting Forsyth and Fulton Counties


.Recent heavy rainfall has caused significant runoff into streams and
rivers which will cause flooding in some areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

All persons with interests along the river should monitor the latest
forecasts...and be prepared to take necessary precautions to protect
life and property.

The latest stage data was furnished in cooperation with the United 
States Geological Survey.

&&

GAC117-121-121357-
/O.NEW.KFFC.FL.W.0077.170912T0021Z-170914T1021Z/
/APHG1.1.ER.170912T0021Z.170913T0000Z.170914T0421Z.NO/
757 PM EDT Mon Sep 11 2017

The National Weather Service in Peachtree City has issued a
* Flood Warning for 
  The Big Creek near Alpharetta.
* From this evening until Thursday morning.
* At 8 PM Monday the stage was 6.3 feet...and rising.
* Minor flooding is forecast.
* Flood stage is 7 feet.
* Forecast to rise above flood stage by this evening and continue to 
  rise to near 9.7 feet by early Wednesday morning.The river will 
  fall below flood stage by early Thursday morning.
* At 10 feet...Minor flooding expands along the creek from near 
  Cumming to Alpharetta and Roswell. Backyards of homes off Seale 
  Drive and Gunter Court and portions of the Golf of Georgia are 
  under a foot of water. The Big Creek Greenway experiences 
  significant flooding up to 4 feet deep with closure of the paths. 
  This especially occurs upstream and downstream from the gage on 
  Kimball Bridge Road and Rock Mill Park. A large portion of the YMCA
  Campground off Preston Ridge Road will be under a two feet of 
  water. 


&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$
5 follow-up statements
211 
WGUS42 KFFC 120830
FLWFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Peachtree City GA
430 AM EDT Tue Sep 12 2017

...The Flood Warning continues for the following rivers in Georgia...

  Big Creek near Alpharetta affecting Forsyth and Fulton Counties

&&

GAC117-121-122230-
/O.EXT.KFFC.FL.W.0077.000000T0000Z-170913T2308Z/
/APHG1.1.ER.170912T0853Z.170913T0000Z.170913T1708Z.NO/
430 AM EDT Tue Sep 12 2017

The Flood Warning continues for 
 The Big Creek near Alpharetta.
* Until Wednesday evening.
* At 3AM Tuesday the stage was 6.9 feet...and rising.
* Minor flooding is forecast.
* Flood stage is 7 feet.
* Forecast to rise above flood stage by early this morning and 
  continue to rise to near 8.1 feet by this evening.The river will 
  fall below flood stage by tomorrow early afternoon.
* At 8 feet...Minor flooding continues to expand further into the 
  woodlands and fields along the creek from near Cumming in south 
  Forsyth County to Alpharetta and Roswell in north Fulton County. 
  Additional portions of The Big Creek Greenway have minor flooding 
  with 1 to 2 feet of water. Most of the walking and biking paths 
  will be closed...especially upstream and downstream from the gage 
  on Kimball Bridge Road and near Rock Mill Park. Portions of the 
  YMCA Campground off Preston Ridge Road will flood.
  

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$
551 
WGUS82 KFFC 120833
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Statement
National Weather Service Peachtree City GA
433 AM EDT Tue Sep 12 2017

...The Flood Warning continues for the following rivers in Georgia...

Big Creek near Alpharetta affecting Forsyth and Fulton Counties 


GAC117-121-122233-
/O.CON.KFFC.FL.W.0077.000000T0000Z-170913T2308Z/
/APHG1.1.ER.170912T0853Z.170913T0000Z.170913T1708Z.NO/
433 AM EDT Tue Sep 12 2017

The Flood Warning continues for
  The Big Creek near Alpharetta.
* From early this morning until Wednesday evening.
* At 3AM Tuesday the stage was 6.9 feet...and rising.
* Minor flooding is forecast.
* Flood stage is 7 feet.
* Forecast to rise above flood stage by early this morning and 
  continue to rise to near 8.1 feet by this evening. The river will 
  fall below flood stage by tomorrow early afternoon.
* At 8 feet...Minor flooding continues to expand further into the 
  woodlands and fields along the creek from near Cumming in south 
  Forsyth County to Alpharetta and Roswell in north Fulton County. 
  Additional portions of The Big Creek Greenway have minor flooding 
  with 1 to 2 feet of water. Most of the walking and biking paths 
  will be closed...especially upstream and downstream from the gage 
  on Kimball Bridge Road and near Rock Mill Park. Portions of the 
  YMCA Campground off Preston Ridge Road will flood.
  

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$
739 
WGUS82 KFFC 121300
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Statement
National Weather Service Peachtree City GA
900 AM EDT Tue Sep 12 2017

...The Flood Warning continues for the following rivers in Georgia...
 
  Big Creek near Alpharetta affecting Forsyth and Fulton Counties 

 
GAC117-121-130300-
/O.EXT.KFFC.FL.W.0077.000000T0000Z-170913T1600Z/
/APHG1.1.ER.170912T1215Z.170913T0000Z.170913T1000Z.NO/
900 AM EDT Tue Sep 12 2017

...Flood Warning extended until Wednesday afternoon...The Flood 
Warning continues for
  The Big Creek near Alpharetta.
* Until Wednesday afternoon.
* At 8AM Tuesday the stage was 7 feet...and rising.
* Minor flooding is forecast to continue.
* Flood stage is 7 feet.
* The river will continue rising to near 7.6 feet by this evening. 
  The river will fall below flood stage tomorrow morning.
* At 8 feet...Minor flooding continues to expand further into the 
  woodlands and fields along the creek from near Cumming in south 
  Forsyth County to Alpharetta and Roswell in north Fulton County. 
  Additional portions of The Big Creek Greenway have minor flooding 
  with 1 to 2 feet of water. Most of the walking and biking paths 
  will be closed...especially upstream and downstream from the gage 
  on Kimball Bridge Road and near Rock Mill Park. Portions of the 
  YMCA Campground off Preston Ridge Road will flood.  

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$
744 
WGUS82 KFFC 121921
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Statement
National Weather Service Peachtree City GA
321 PM EDT Tue Sep 12 2017

...The Flood Warning is cancelled for the following rivers in 
Georgia...
 
  Chattahoochee River near Whitesburg affecting Carroll...Coweta and
  Heard Counties

 
...The Flood Warning continues for the following rivers in Georgia...
 
  Big Creek near Alpharetta affecting Forsyth and Fulton Counties 

 
GAC117-121-130921-
/O.EXT.KFFC.FL.W.0077.000000T0000Z-170913T1400Z/
/APHG1.1.ER.170912T1215Z.170913T0000Z.170913T0800Z.NO/
321 PM EDT Tue Sep 12 2017

...Flood Warning extended until Wednesday morning...

The Flood Warning continues for
  The Big Creek near Alpharetta.
* Until Wednesday morning.
* At 245 PM Tuesday the stage was 7.1 feet, and slowly rising.
* Minor flooding is occurring, and minor flooding is forecast to 
  continue.
* Flood stage is 7 feet.
* The river will continue rising, reaching around 7.4 feet early this 
  evening then begin falling later in the evening. The river will 
  fall below flood stage early Wednesday.
* At 7 feet, Flood Stage is reached with minor flooding of the 
  woodlands and fields beginning along the creek from Cumming in 
  Forsyth County to Alpharetta and Roswell in North Fulton County.  
  Flooding starts to effect portions of The Big Creek Greenway near 
  Alpharetta and some portions may become closed with around one foot
  of water, especially upstream and downstream from the gage on 
  Kimball Bridge Road and near Rock Mill Park. Portions of the YMCA 
  Campground off Preston Ridge Road also begin to flood.


&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$

GAC045-077-149-121951-
/O.CAN.KFFC.FL.W.0078.000000T0000Z-170913T0200Z/
/WHTG1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
321 PM EDT Tue Sep 12 2017

The Flood Warning is cancelled for
  The Chattahoochee River near Whitesburg.
* This takes effect immediately.
* Until this evening.
* At 3 PM Tuesday the stage was 14.9 feet and falling.
* Flood stage is 17 feet.
* The river will continue to fall.


&&

LAT...LON 3359 8484 3355 8478 3350 8479 3341 8498
      3344 8505 3350 8493             

$$
133 
WGUS82 KFFC 130348
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Statement
National Weather Service Peachtree City GA
1148 PM EDT Tue Sep 12 2017

...The Flood Warning is cancelled for the following rivers in 
Georgia...
 
  Big Creek near Alpharetta affecting Forsyth and Fulton Counties

 
...The Flood Warning continues for the following rivers in Georgia...
 
  Ocmulgee River near Macon affecting Bibb...Houston...Jones...
  Monroe and Twiggs Counties 

 
GAC021-153-169-207-289-131748-
/O.EXT.KFFC.FL.W.0080.170914T0712Z-170915T1900Z/
/MACG1.1.ER.170914T0712Z.170914T1800Z.170915T1300Z.NO/
1148 PM EDT Tue Sep 12 2017

...Flood Warning extended until Friday afternoon...The Flood Warning 
continues for
  The Ocmulgee River near Macon.
* From Thursday morning until Friday afternoon.
* At 1030 PM this evening the stage was 13.0 feet...and falling before an 
  expected transition to rising again.
* Nonflood flooding is occurring and Minor flooding is forecast.
* Flood stage is 18 feet.
* Forecast to rise above flood stage by Thursday morning and continue
  to rise to near 18.7 feet by Thursday early afternoon.The river 
  will fall below flood stage by late Friday morning.
* At 19 feet...Minor flooding continues. The Macon Greenway 
  Ocmulgee Heritage Trail will begin to flood in areas just north of 
  the Martin Luther King Boulevard bridge. The public should not use 
  this portion of the trail. In addition...the lowest sections of the
  Charles Jones Gateway Park will flood. Portions of agricultural 
  lands well downstream will be under two feet of water.


&&

LAT...LON 3290 8372 3293 8367 3282 8356 3266 8353
      3263 8359 3274 8363             

$$

GAC117-121-130418-
/O.CAN.KFFC.FL.W.0077.000000T0000Z-170913T1400Z/
/APHG1.1.ER.170912T1215Z.170912T1845Z.170913T0115Z.NO/
1148 PM EDT Tue Sep 12 2017

The Flood Warning is cancelled for
  The Big Creek near Alpharetta.
* This takes effect immediately.
* At 1045 PM this evening the stage was 6.9 feet...and falling.
* Flood stage is 7 feet.
* The creek will continue to fall.
* At 7 feet...Flood Stage is reached.  Minor flooding of woodlands 
  and fields begin along the creek between Cumming in Forsyth 
  County...to Alpharetta and Roswell in North Fulton County.  
  Flooding starts to effect portions of The Big Creek Greenway near 
  Alpharetta and some portions may become closed with around one foot
  of water...especially upstream and downstream from the gage on 
  Kimball Bridge Road and near Rock Mill Park. Portions of the YMCA 
  Campground off Preston Ridge Road will begin to flood.

&&

LAT...LON 3410 8425 3410 8420 3404 8425 3402 8430
      3404 8433 3407 8427             

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 11, 1:46 PM EDTFlash Flood WarningFFCEmanuel, Jefferson, Johnson, Treutlen6 hr
Sep 11, 2:29 PM EDTSpecial Weather StatementFFCEmanuel31 min
Sep 11, 2:39 PM EDTSpecial Weather StatementFFCBleckley36 min
Sep 11, 3:05 PM EDTSpecial Weather StatementFFCLaurens25 min
Sep 11, 3:37 PM EDTSpecial Weather StatementFFCLaurens23 min
Sep 11, 7:03 PM EDTSpecial Weather StatementFFCGlascock, Jefferson27 min
Sep 11, 7:20 PM EDTSpecial Weather StatementFFCWilkinson25 min
Sep 11, 7:35 PM EDTSpecial Weather StatementFFCBibb25 min
Sep 11, 7:46 PM EDTSpecial Weather StatementFFCJones29 min

Nearby

River Flood Warnings in Georgia, 2017Every river flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.