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Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Peachtree City/Atlanta, GA

Southeast River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) Datum: NAVD88 Metadata

NOTE: Automated gauge readings are now available, courtesy of the USGS. NOTE: Gauge reading affected by reservoir operations. NOTE: Forecasts are not available for the Oconee River at Avant Mine near Oconee. Only observed stages are available for this point.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 22 Moderate Flood Stage: 20 Flood Stage: 18 Action Stage: 16 Low Stage (in feet): -9999 Historic Crests (1) 20.67 ft on 04/15/1998 (2) 19.86 ft on 02/08/2020 (3) 19.75 ft on 01/01/2016 (4) 19.73 ft on 12/23/2015 (5) 19.73 ft on 04/08/2022 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 19.73 ft on 04/08/2022 (2) 18.83 ft on 02/06/2022 (3) 18.75 ft on 09/19/2020 (4) 18.80 ft on 05/01/2020 (5) 19.26 ft on 03/06/2020 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.01 ft on 11/08/2007 (2) 1.04 ft on 08/27/2007 For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer 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

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22	Major flooding begins with widespread inundation of the woodlands and wetlands along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County. The water will be around 4 feet deep around an elevated USGS gage house. Large portions of the dirt road by the boat ramp will be under two feet of water.
21	Significant flooding expands further into the woodlands and wetlands along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County. The water will be around 3 feet deep around an elevated USGS gage house. Portions of the dirt road by the boat ramp will be under a foot of water.
20	Moderate flooding begins. Significant flooding occurs in the woodlands and wetlands along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County. The water will be around two feet deep around an elevated USGS gage house. The dirt road by the boat ramp will begin to flood.
19	Minor flooding continues to expand into the woodlands and wetlands along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County. The water level will begin to surround the elevated USGS gage house.
18	Flood stage is reached. Minor flooding begins in the woodlands and wetlands along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County. The water level will be at the top of the boat ramp.
16	Bankfull conditions are reached along the river upstream and downstream from a gage located by a dirt boat ramp on the west side of Avant Mine off Adams Road in Washington County.

About This Location

Latitude: 32.939722° N, Longitude: 83.066944° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 18 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 202.8 ft 220.8 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: U.S. Geological Survey (USGS) Data and Site Info for Avant Mine near Oconee

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations Spring Flood Outlook USGS Georgia

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management WFO FFC Additional Links Google Earth Gage Locations Snow Information

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