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 Morristown, TN

Lower Mississippi River Forecast Center

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: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the S. Chickamauga Creek near Chickamauga are issued routinely year-round.

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Flood Categories (in feet) Major Flood Stage: 27 Moderate Flood Stage: 22 Flood Stage: 18 Action Stage: 16 Low Stage (in feet): -9999 Historic Crests (1) 29.29 ft on 05/08/2003 (2) 28.72 ft on 02/17/1990 (3) 28.70 ft on 03/17/1973 (4) 28.54 ft on 09/22/2009 (5) 27.73 ft on 03/30/1951 (6) 27.54 ft on 03/29/1994 (7) 26.83 ft on 11/29/1948 (8) 26.43 ft on 12/27/2015 (9) 25.93 ft on 04/14/2020 (P) (10) 25.70 ft on 12/19/1961 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 18.87 ft on 02/24/2022 (P) (2) 20.17 ft on 04/01/2021 (P) (3) 18.37 ft on 03/27/2021 (P) (4) 21.93 ft on 03/19/2021 (P) (5) 25.93 ft on 04/14/2020 (P) (6) 19.05 ft on 03/10/2019 (P) (7) 22.02 ft on 02/24/2019 (P) (8) 18.02 ft on 02/21/2019 (P) (9) 17.81 ft on 04/24/2018 (P) (10) 20.13 ft on 03/02/2018 (P) Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 0.24 ft on 10/05/1970 (2) 3.92 ft on 10/10/2016 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:15 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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30	The airport is closed. Interstates 24 and 75 in East Ridge are impassable.
29	The airport can still function at a reduced level. Access to the airport becomes difficult.
28	Major flooding occurs in areas around the airport in Chattanooga. Several roads are blocked, including Highway 153 near Shepherd Road. Many homes in East Ridge are flooded, and some businesses affected.
27	Homes on Arlena Circle (off Shallowford Road) are evacuated. Evacuations also take place at the Fountainbleau Apartments on Spring Creek Road in East Ridge.
24	A few homes in the East Ridge area are flooded.
23	Evacuations begin in some of the low lying areas around Spring Creek in the East Ridge area.
22	Airport Road is closed to traffic. A couple of homes are slightly flooded near intersection of Mack Smith Road and May Street. Flooding becomes extensive around the north end of the airport.
21	Mack Smith Road and Lovell Field Loop become impassable. Water begins to come onto Airport Road, just north of the terminal complex. West Chickamauga Creek increases to near a half mile wide in places, becoming hazardous to adjacent travel in East Ridge.
20	Mack Smith Road is closed. Water crosses Lovell Field Loop, the access road around the north end of the airport runway.
19	Water across Mack Smith road begins to impede traffic. West Chickamauga Creek overflows its banks near the Georgia state line and inundates several roads and properties in the area.
18	Water begins to cross Mack Smith Road in Catoosa County, Georgia. Flooding begins at golf courses near the confluence of South and West Chickamauga Creeks. West Chickamauga Creek begins to overflow its banks, as well.

About This Location

Latitude: 35.013611° N, Longitude: 85.210556° 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 29 644.12 ft 662.12 ft 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 Chickamauga

Additional Information

Find more information from the Tennessee Valley Authority (TVA): http://lakeinfo.tva.gov/htbin/streaminfo and from the Environmental Protection Agency (EPA): http://cfpub.epa.gov/surf/huc.cfm?huc_code=06020001

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Excessive Rainfall Outlook Daily Tennessee Basin Lake Stages and Forecasts Water Release Schedule of TVA Dams 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 Morristown Weather Forecast Office 5974 Commerce Blvd. Morristown, TN 37814 (423) 586-3771 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities