Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

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 (EDT) Datum: NAVD88 Metadata

NOTE: Automated gauge readings are now available, courtesy of the USGS. NOTE: Forecasts are not available for the Allatoona Creek at Stilesboro Road near Acworth. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 23 Moderate Flood Stage: 18 Flood Stage: 13 Action Stage: 11 Low Stage (in feet): -9999 Historic Crests (1) 23.90 ft on 09/21/2009 (2) 14.82 ft on 06/01/2018 (3) 14.78 ft on 02/06/2020 (4) 14.73 ft on 09/21/2009 (5) 14.59 ft on 10/11/2018 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 14.20 ft on 04/05/2022 (2) 13.07 ft on 12/30/2021 (3) 14.58 ft on 08/31/2021 (4) 13.27 ft on 05/05/2021 (5) 13.81 ft on 05/03/2021 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 4.18 ft on 10/01/2007 (2) 4.29 ft on 09/09/2007 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:16 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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25	Record flooding never seen before will cause widespread inundation of the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The bridge will be topped with around two feet of water and will likely cause erosion to the sides of the bridge. The flood waters will be around 6 feet deep on portions of the road. This flooding will be worse than the September 2009 flood event.
24	Record flooding will cause widespread inundation of the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The bridge will be topped with around one foot of water and may cause erosion to the sides. The flood waters will be around 5 feet deep on portions of the road. This flooding will be similar to the September 2009 flood event.
23	Major flooding begins. Near record and widespread inundation flooding occurs in the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The water level begins to top the bridge and may cause erosion to the sides. The flood waters will be around 4 feet deep on portions of the road.
21	Significant flooding continues to expand further into the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The water level hits the bridge and may cause erosion to the sides. The flood waters will be around two feet deep on portions of the road.
19	Significant flooding continues in the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The water level begins to hit the bridge and flood lower portions of the road. County officials will likely close the road.
18	Moderate flooding begins. Significant flooding occurs in the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road. The water level is close to the bottom of the bridge and county officials may close it.
17	Minor flooding expands further into the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road.
15	Minor flooding continues to expand further into the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road.
13	Flood Stage is reached. Minor flooding begins in the woodlands and fields near the creek upstream and downstream from the gage on Stilesboro Road.
11	Bankfull conditions are reached upstream and downstream from the gage located on Stilesboro Road.

About This Location

Latitude: 33.995278° N, Longitude: 84.693056° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 13 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 865.57 ft 878.57 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 Stilesboro Road near Acworth

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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