Alert archive / Georgia / River Flood Warnings in 2021

River Flood Warning 1, NWS Atlanta, GA

January 1, 2021Forsyth County, Fulton County, Georgia

NWS Atlanta, GA issued this river flood warning at Jan 1, 2021, 1:44 PM EST for Forsyth County, Fulton County, Georgia. It took effect at Jan 1, 2021, 5:46 PM EST. It was in force for 40 hr.

The area

The outline as issued.

The facts

Issued: Jan 1, 2021, 1:44 PM EST (18:44 UTC)
In effect from: Jan 1, 2021, 5:46 PM EST
Expired: Jan 3, 2021, 9:20 AM EST
In force: 40 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 18:44 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 9.33 ft at Jan 2, 2021, 6:00 PM EST.

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.

061 
WGUS42 KFFC 011844
FLWFFC

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Peachtree City GA
144 PM EST Fri Jan 1 2021

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

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-020645-
/O.NEW.KFFC.FL.W.0001.210101T2246Z-210103T1200Z/
/APHG1.1.ER.210101T2246Z.210102T1800Z.210103T0600Z.NO/
144 PM EST Fri Jan 1 2021

The National Weather Service in Peachtree City has issued a

* Flood Warning for
  the Big Creek near Alpharetta.
* From this afternoon to Sunday morning.
* At 1:30 PM EST Friday the stage was 6.7 feet.
* Flood stage is 7.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon, further rising to a crest of 7.5 feet early 
  Saturday afternoon. It will then fall below flood stage early 
  Sunday morning.
* Impact...At 7.0 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

$$

7 follow-up statements

554 
WGUS82 KFFC 020557
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
1257 AM EST Sat Jan 2 2021

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

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-021800-
/O.CON.KFFC.FL.W.0001.000000T0000Z-210103T1200Z/
/APHG1.1.ER.210101T1913Z.210102T0545Z.210103T0800Z.NO/
1257 AM EST Sat Jan 2 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until Sunday morning.
* At 12:45 AM EST Saturday the stage was 7.9 feet.
* Flood stage is 7 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river is expected to fall below flood stage 
  Saturday night and continue falling to 2.9 feet Wednesday evening.
* Impact...At 8.0 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

$$

SK

485 
WGUS82 KFFC 021622
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
1122 AM EST Sat Jan 2 2021

...The Flood Warning is extended for the following rivers in 
Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-030430-
/O.EXT.KFFC.FL.W.0001.000000T0000Z-210104T0300Z/
/APHG1.1.ER.210101T1913Z.210102T1545Z.210103T2100Z.NO/
1122 AM EST Sat Jan 2 2021

...The Flood Warning is now in effect until late Sunday evening...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until Sunday evening.
* At 10:45 AM EST Saturday the stage was 8.5 feet and rising.
* Flood stage is 7 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 8.6 feet 
  this evening. It will then fall below flood stage Sunday afternoon.
* Impact...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

$$

856 
WGUS82 KFFC 021716
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
1216 PM EST Sat Jan 2 2021

...The Flood Warning is extended for the following rivers in 
Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-030530-
/O.EXT.KFFC.FL.W.0001.000000T0000Z-210104T0742Z/
/APHG1.1.ER.210101T1913Z.210103T0000Z.210104T0142Z.NO/
1216 PM EST Sat Jan 2 2021

...The Flood Warning is now in effect until early Monday morning...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until late Sunday night.
* At 12:00 PM EST Saturday the stage was 8.7 feet.
* Flood stage is 7 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 9 feet this 
  evening. It will then fall below flood stage Sunday evening.
* Impact...At 9.0 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 
  begin to flood. The Big Creek Greenway experiences significant 
  flooding up to 3 feet deep...which results in closure of most 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 foot of 
  water.


&&

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

$$

693 
WGUS82 KFFC 021854
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
154 PM EST Sat Jan 2 2021

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

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-030700-
/O.EXT.KFFC.FL.W.0001.000000T0000Z-210104T0600Z/
/APHG1.1.ER.210101T1913Z.210103T0600Z.210104T0000Z.NO/
154 PM EST Sat Jan 2 2021

...The Flood Warning is now in effect until early Monday morning...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until late Sunday night.
* At 1:45 PM EST Saturday the stage was 9 feet.
* Flood stage is 7 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 9.4 feet 
  just after midnight tonight. It will then fall below flood stage 
  Sunday evening.
* Impact...At 9 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 
  begin to flood. The Big Creek Greenway experiences significant 
  flooding up to 3 feet deep...which results in closure of most 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 foot of 
  water.


&&

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

$$

536 
WGUS82 KFFC 030330
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
1030 PM EST Sat Jan 2 2021

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

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-031530-
/O.CON.KFFC.FL.W.0001.000000T0000Z-210104T0600Z/
/APHG1.1.ER.210101T1913Z.210103T0600Z.210104T0000Z.NO/
1030 PM EST Sat Jan 2 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until late Sunday night.
* At 10:00 PM EST Saturday the stage was 9.0 feet and falling.
* Flood stage is 7.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to continue to fall. It will fall 
  below flood stage Sunday evening.
* Impact...At 9.0 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 
  begin to flood. The Big Creek Greenway experiences significant 
  flooding up to 3 feet deep...which results in closure of most 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 foot of 
  water.


&&

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

$$

217 
WGUS82 KFFC 030915
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
415 AM EST Sun Jan 3 2021

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

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at weather.gov/atlanta.


GAC117-121-032200-
/O.CON.KFFC.FL.W.0001.000000T0000Z-210104T0600Z/
/APHG1.1.ER.210101T1913Z.210102T2300Z.210103T1942Z.NO/
415 AM EST Sun Jan 3 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Creek near Alpharetta.
* Until late tonight.
* At 4:00 AM EST Sunday the stage was 8.1 feet.
* Flood stage is 7 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river is expected to fall below flood stage this 
  afternoon and continue falling to 2.8 feet early Friday morning.
* Impact...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

$$

398 
WGUS82 KFFC 031420
FLSFFC

Flood Statement
National Weather Service Peachtree City GA
920 AM EST Sun Jan 3 2021

...The Flood Warning is cancelled for the following rivers in 
Georgia...

  Big Creek near Alpharetta affecting Fulton and Forsyth Counties.

GAC117-121-031530-
/O.CAN.KFFC.FL.W.0001.000000T0000Z-210103T1420Z/
/APHG1.1.ER.210101T1913Z.210102T2300Z.210103T1942Z.NO/
920 AM EST Sun Jan 3 2021

...The Flood Warning for the Big Creek near Alpharetta has been 
cancelled...

The Flood Warning is cancelled for
  the Big Creek near Alpharetta.
* At 9:00 AM EST Sunday the stage was 5.8 feet and falling.
* Flood stage is 7 feet.
* Forecast...The river is expected to continue falling.


&&

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.

Issued	Product	Office	Counties	Lasted
Jan 1, 1:26 AM EST	Dense Fog Advisory	FFC	Baldwin, Banks, Barrow, Butts, Cherokee, Clarke and 47 more	9 hr
Jan 1, 11:14 AM EST	Special Weather Statement	FFC	Harris, Troup	31 min
Jan 1, 11:32 AM EST	Tornado Warning	FFC	Harris, Meriwether, Troup	28 min
Jan 1, 11:48 AM EST	Special Weather Statement	FFC	Forsyth	27 min
Jan 1, 12:08 PM EST	Special Weather Statement	FFC	Fayette, Meriwether, Pike	37 min
Jan 1, 12:45 PM EST	Special Weather Statement	FFC	Butts, Henry, Lamar, Spalding	30 min
Jan 1, 1:35 PM EST	Special Weather Statement	FFC	Marion, Talbot, Taylor, Upson	25 min
Jan 1, 2:01 PM EST	Tornado Warning	FFC	Crawford, Monroe, Taylor, Upson	29 min
Jan 1, 2:35 PM EST	Tornado Warning	FFC	Jones, Monroe	25 min
Jan 1, 2:50 PM EST	River Flood Warning	FFC	Forsyth	15 hr
Jan 1, 2:57 PM EST	Tornado Warning Tornado observed	FFC	Baldwin, Jasper, Jones, Monroe, Putnam	23 min
Jan 1, 3:04 PM EST	Tornado Warning	FFC	Greene, Hancock, Taliaferro, Warren	26 min
Jan 1, 3:28 PM EST	Tornado Warning	FFC	Taliaferro, Warren, Wilkes	32 min
Jan 1, 3:36 PM EST	Tornado Warning	FFC	Greene, Hancock, Putnam	24 min
Jan 1, 3:39 PM EST	Tornado Warning	FFC	Baldwin, Hancock, Putnam	22 min
Jan 1, 3:58 PM EST	Special Weather Statement	FFC	Bibb, Peach	32 min
Jan 1, 4:05 PM EST	Special Weather Statement	FFC	Hancock, Taliaferro	25 min
Jan 1, 4:30 PM EST	Special Weather Statement	FFC	Jones	30 min
Jan 1, 4:33 PM EST	Special Weather Statement	FFC	Taliaferro, Warren, Wilkes	27 min
Jan 1, 5:37 PM EST	Special Weather Statement	FFC	Glascock, Washington	23 min
Jan 1, 6:07 PM EST	Special Weather Statement	FFC	Dodge, Johnson, Laurens	23 min
Jan 1, 6:09 PM EST	Special Weather Statement	FFC	Glascock, Jefferson	36 min
Jan 1, 6:34 PM EST	Special Weather Statement	FFC	Johnson, Treutlen	41 min

Nearby

River Flood Warnings in Georgia, 2021 Every river flood warning in 2021

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.