Alert archive / Georgia / River Flood Warnings in 2018

River Flood Warning 96, NWS Atlanta, GA

October 11, 2018Forsyth County, Georgia

NWS Atlanta, GA issued this river flood warning at Oct 11, 2018, 3:12 AM EDT for Forsyth County, Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Oct 11, 2018, 3:12 AM EDT (07:12 UTC)
Expired
Oct 11, 2018, 10:12 AM EDT
In force
7 hr
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Flood severity
Minor

County Forsyth County, GA

The radar

The Atlanta radar (KFFC), 92 km from the middle of the area, began a volume at 07:11 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 at GA 9 near Cumming (CMGG1). The gauge peaked at 5.85 ft at Oct 11, 2018, 8:00 AM EDT.

actionminormoderate051010/1110/12
Action stage
4 ft
Minor stage
6 ft
Moderate stage
12 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02335580, 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.

603 
WGUS42 KFFC 110712
FLWFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Peachtree City GA
312 AM EDT Thu Oct 11 2018

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

  Big Creek near Cumming affecting Forsyth County


.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.

&&

GAC117-112112-
/O.NEW.KFFC.FL.W.0096.181011T0712Z-000000T0000Z/
/CMGG1.1.ER.181011T0643Z.181011T0645Z.000000T0000Z.UU/
312 AM EDT Thu Oct 11 2018

The National Weather Service in Peachtree City has issued a
* Flood Warning for 
  The Big Creek near Cumming.
* Until further notice.
* At 245 AM Thursday the stage was 4.8 feet...and rising.
* Flood stage is 6 feet.
* At 6 feet...Flood stage is reached. Minor flooding will expand 
  into the natural flood plain of the creek upstream and downstream 
  from the gage at Atlanta Highway or Georgia Highway 9. Large 
  portions of the sidewalk and boardwalk of the Big Creek Greenway 
  will begin to flood. The areas under the Georgia 400 Highway and 
  McFarland Road will be covered with around one foot of water. A 
  portion of the sidewalk under Majors Road will be covered with 
  around two feet of water. 

&&

LAT...LON 3418 8424 3417 8420 3411 8419 3410 8420
      3410 8425 3411 8424             

$$
1 follow-up statement
551 
WGUS82 KFFC 111412
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Statement
National Weather Service Peachtree City GA
1012 AM EDT Thu Oct 11 2018

...The Flood Warning is cancelled for the following rivers in 
Georgia...
 
  Big Creek near Cumming affecting Forsyth County

 
GAC117-111442-
/O.CAN.KFFC.FL.W.0096.000000T0000Z-181011T1412Z/
/CMGG1.1.ER.181011T0643Z.181011T0645Z.000000T0000Z.UU/
1012 AM EDT Thu Oct 11 2018

The Flood Warning is cancelled for
  The Big Creek near Cumming.
* This takes effect immediately.
* At 10 AM Thursday the stage was 5.8 feet...and falling.
* Flood stage is 6 feet.
* The creek will continue to fall.
* At 6 feet...Minor flooding occurs of the natural flood plain 
  of the creek upstream and downstream from the gage at Atlanta 
  Highway or Georgia Highway 9. Large portions of the sidewalk 
  and boardwalk of the Big Creek Greenway are inundated with water.
  The areas under the Georgia 400 Highway and McFarland Road is
  covered with around one foot of water. A portion of the sidewalk 
  under Majors Road is covered with around two feet of water.
  

&&

LAT...LON 3418 8424 3417 8420 3411 8419 3410 8420
      3410 8425 3411 8424             

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 8:59 PM EDTFlash Flood WarningFFCChattahoochee, Crisp, Dooly, Houston, Macon, Marion and 6 more6 hr
Oct 10, 9:49 PM EDTSpecial Weather StatementFFCHenry26 min
Oct 10, 9:51 PM EDTSpecial Weather StatementFFCHarris, Meriwether, Muscogee, Talbot, Troup84 min
Oct 10, 10:51 PM EDTAreal Flood WarningFFCChattahoochee, Coweta, Fayette, Harris, Heard, Marion and 7 more6 hr
Oct 10, 11:10 PM EDTAreal Flood WarningFFCCarroll, Clayton, Cobb, Douglas, Fulton, Haralson and 2 more6 hr
Oct 10, 11:23 PM EDTAreal Flood WarningFFCBibb, Bleckley, Butts, Crawford, Dodge, Henry and 11 more6 hr
Oct 10, 11:57 PM EDTAreal Flood WarningFFCBarrow, Bartow, Cherokee, DeKalb, Forsyth, Fulton and 9 more6 hr
Oct 11, 12:14 AM EDTAreal Flood WarningFFCBaldwin, Emanuel, Glascock, Greene, Hancock, Jefferson and 8 more6 hr
Oct 11, 1:46 AM EDTRiver Flood WarningFFCDeKalb, Fulton24 hr
Oct 11, 1:46 AM EDTRiver Flood WarningFFCDeKalb, Fulton24 hr
Oct 11, 1:50 AM EDTRiver Flood WarningFFCCobb6 hr
Oct 11, 2:20 AM EDTRiver Flood WarningFFCFulton2 hr
Oct 11, 3:05 AM EDTRiver Flood WarningFFCForsyth, Fulton25 hr
Oct 11, 3:27 AM EDTSpecial Weather StatementFFCGilmer, Gordon, Murray, Pickens, Whitfield93 min
Oct 11, 6:26 AM EDTRiver Flood WarningFFCCobb8 hr
Oct 11, 1:38 PM EDTRiver Flood WarningFFCGwinnett7 hr
Oct 11, 2:38 PM EDTRiver Flood WarningFFCCobb, Paulding20 hr

Nearby

River Flood Warnings in Georgia, 2018Every river flood warning in 2018

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.