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Weather Forecast Office Peachtree City/Atlanta, GA

Southeast River Forecast Center

Hydrograph

River at a Glance

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Oconee River at Highway 280 near Mount Vernon

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About this graph

Tabular Data (UTC)

Tabular Data (EDT)

Datum: NAVD88

Metadata

NOTE: Automated gauge readings are now available, courtesy of the USGS.

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Oconee River at Highway 280 near Mount Vernon are issued as needed during times of high water, but are not routinely available.

Return to Area Map

Upstream Gauge

Flood Categories (in feet)

Major Flood Stage:	23
Moderate Flood Stage:	20
Flood Stage:	16
Action Stage:	14
Low Stage (in feet):	0

Historic Crests
(1) 23.03 ft on 03/14/1998
(2) 23.00 ft on 03/09/1972
(3) 22.60 ft on 02/09/1998
(4) 22.60 ft on 12/05/1948
(5) 21.80 ft on 03/03/1961
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.20 ft on 03/14/2024 (P)
(2) 18.83 ft on 02/19/2024
(3) 17.33 ft on 01/17/2024
(4) 19.00 ft on 04/02/2023
(5) 18.80 ft on 04/13/2022
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.07 ft on 09/19/2011
(2) 0.20 ft on 08/11/2008
(3) 1.11 ft on 09/08/1999
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:16

	Gauge Location	Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
24	Record flooding occurs with widespread inundation of the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. Most of the access road to the boat ramp on the Wheeler County side of the river is flooded. Around a dozen homes on Dead River Road in the south end of Montgomery County are flooded with up to 4 feet of water. Dead River Road will be flooded up to 6 feet deep.
23	Major flooding begins with widespread inundation of the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. Most of the access road to the boat ramp on the Wheeler County side of the river is flooded. Around a dozen homes on Dead River Road in the south end of Montgomery County are flooded with up to 3 feet of water. Dead River Road will be flooded up to 5 feet deep.
22	Significant flooding expands in the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. More of the access road to the boat ramp on the Wheeler County side of the river is flooded. Around a dozen homes on Dead River Road in the south end of Montgomery County are flooded with up to 2 feet of water. Dead River Road will be flooded up to 4 feet deep.
21	Significant flooding continues in the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. The lower portion of the access road to the boat ramp on the Wheeler County side of the river is flooded. Around a dozen homes on Dead River Road in the south end of Montgomery County become flooded. Portions of Dead River Road will be covered by at least 3 feet of water.
20	Moderate flooding begins. Significant flooding occurs in the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. The access road to the boat ramp on the Wheeler County side of the river begins to flood. Around a dozen homes on Dead River Road in the south end of Montgomery County become surrounded with water. A few homes will have some flooding. Portions of Dead River Road will be covered by at least two feet of water.
19	Minor flooding expands further into the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. The boat ramp parking lot is flooded out on the Wheeler County side of the river. More homes on Dead River Road in the south part of Montgomery County become surrounded with water. Some flooding inside the structures is possible. Some portions of Dead River Road are covered by at least a foot of water.
18	Minor flooding expands in the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. A campground and a few out buildings begin to flood several miles south of Mount Vernon. Eleven homes in the Cherokee Sand Ridge subdivision are surrounded by water. Dead River Road becomes flooded and is closed.
17	Minor flooding continues in the woodlands and pastures upstream and downstream from the gage on U.S. Highway 280. Some homes on Dead River Road in the south end of Montgomery County become surrounded by water. Water begins to cover lower portions of Dead River Road.
16	Flood Stage is reached. Minor flooding begins in the woodlands...pastures and natural flood plain along the river upstream and downstream from the gage on U.S. Highway 280. Flood waters reach the top of a boat ramp by the bridge on the Wheeler County side of the River.
14	Bankfull conditions occur along the river upstream and downstream from the gage on U.S. Highway 280 bridge.
12	Water backflows into McCoy Lake upstream from the gage. No known damages occur from the overflow. McCoy Lake is a slough which extends 1 mile upstream from the river gage.

About This Location

Latitude: 32.191291° N, Longitude: 82.633190° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	16 ft	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	102.6 ft	118.6 ft	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	Not Available	Not Available	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	Not Available

Current/Historical Observations:

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Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information

National Weather Service
Peachtree City/Atlanta Weather Forecast Office
4 Falcon Drive
Peachtree City, GA 30269
(770) 486-1133
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Page last modified: 2-Nov-2020 7:30 PM

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