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 Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

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

Dense Fog Advisory

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) Datum: Not Available 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 Conasauga River at Tilton are issued as needed during times of high water, but are not routinely available.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 28 Moderate Flood Stage: 24 Flood Stage: 18 Action Stage: 15 Low Stage (in feet): 0 Historic Crests (1) 34.00 ft on 04/01/1886 (2) 30.20 ft on 03/30/1951 (3) 29.89 ft on 02/17/1990 (4) 28.42 ft on 03/29/1994 (5) 28.13 ft on 03/18/1973 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 18.11 ft on 02/06/2022 (2) 20.02 ft on 09/03/2021 (3) 20.63 ft on 04/03/2021 (4) 21.86 ft on 03/28/2021 (5) 21.15 ft on 03/20/2021 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.68 ft on 09/05/2007 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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29	Major flooding continues with widespread inundation flooding in the woodlands...fields and pastures along the river upstream and downstream from the Bracketts Ridge Road bridge. The flood waters will be near the foundation of an industrial minerals factory near the gage. The water level reaches the floor of the USGS concrete structure gage house on the left bank and downstream from the bridge.
28	Major flooding begins. Widespread inundation flooding occurs in the woodlands...fields and pastures along the river upstream and downstream from the Bracketts Ridge Road bridge. The flood waters will approach an industrial minerals factory near the gage.
26	Significant flooding expands much further into the woodlands...fields and pastures along the river upstream and downstream from the Brackett Ridge Road bridge.
24	Moderate flooding begins. Significant flooding expands into the woodlands...fields and pastures along the river upstream and downstream from the Brackett Ridge Road bridge.
21	Minor flooding continues to expand further into the woodlands...fields and pastures along the river upstream and downstream from the gage on the Brackett Ridge Road bridge.
18	Flood stage is reached. Minor flooding begins in the woodlands...fields and pastures along the river upstream and downstream from the gage on the Brackett Ridge Road bridge.
15	Bankfull conditions are reached along the river upstream and downstream from the gage on the Brackett Ridge Road bridge.

About This Location

Latitude: 34.666667° N, Longitude: 84.928333° 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 Not Available Not Available 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 622.28 ft 640.28 ft   Current/Historical Observations: Corps of Engineers (COE) Info for Tilton U.S. Geological Survey (USGS) Data and Site Info for Tilton

Additional Information

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels 10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS) Note: Use the official hydrograph at the top of this web page for river levels within the next 72 Hours.

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

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 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities