National Weather Service Advanced Hydrologic Prediction Service

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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 Morristown, TN

Lower Mississippi River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (EDT)

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.

Return to Area Map

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

Zoom Level:15

	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
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

Additional Resources

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
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Page last modified: 2-Nov-2020 7:30 PM

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