Alert archive / Georgia / River Flood Warnings in 2015

River Flood Warning 45, NWS Atlanta, GA

September 25, 2015Forsyth County, Georgia

NWS Atlanta, GA issued this river flood warning at Sep 25, 2015, 4:23 AM EDT for Forsyth County, Georgia. It took effect at Sep 25, 2015, 4:39 AM EDT. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Sep 25, 2015, 4:23 AM EDT (08:23 UTC)
In effect from
Sep 25, 2015, 4:39 AM EDT
Expired
Sep 25, 2015, 12:46 PM EDT
In force
8 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 08:25 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 5.66 ft at Sep 25, 2015, 7:00 AM EDT.

actionminormoderate051009/2509/26
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, in the capitals the NWS used until 2016.

513 
WGUS42 KFFC 250823
FLWFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
423 AM EDT FRI SEP 25 2015

...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.

&&

GAC117-251646-
/O.NEW.KFFC.FL.W.0045.150925T0839Z-150925T1646Z/
/CMGG1.1.ER.150925T0839Z.150925T0900Z.150925T1046Z.UU/
423 AM EDT FRI SEP 25 2015

The National Weather Service in Peachtree City has issued a
* Flood Warning for 
  The Big Creek near Cumming.
* From early this morning until mid morning.
* At 03AM Friday the stage was 4.8 feet...and rising.
* Minor flooding is forecast.
* Flood stage is 6.0 feet.
* Forecast to rise above flood stage by early this morning and 
  continue to rise to near 6.5 feet by early this morning.The river 
  will fall below flood stage by this morning.
* At 6.0 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. 
* This crest compares to a previous crest of 6.4 feet on Mar 16 2014.
  

&&

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

$$
1 follow-up statement
549 
WGUS82 KFFC 251144
FLSFFC
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
744 AM EDT FRI SEP 25 2015

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

 
GAC117-251214-
/O.CAN.KFFC.FL.W.0045.000000T0000Z-150925T1646Z/
/CMGG1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.UU/
744 AM EDT FRI SEP 25 2015

The Flood Warning is cancelled for
  The Big Creek near Cumming.
* This takes affect immediately.
* At 06AM Friday the stage was 5.7 feet...and falling.
* Flood stage is 6.0 feet.
* The creek/river will continue to fall.
* At 6.0 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. 
* This crest compares to a previous crest of 6.0 feet on Apr 28 2013.
  

&&

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
Sep 25, 5:16 AM EDTSpecial Weather StatementFFCBartow, Cherokee, Floyd74 min

Nearby

River Flood Warnings in Georgia, 2015Every river flood warning in 2015

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.