Skip Navigation Link  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap


Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS) at a repurposed A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id:

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit for more information.

Hydrograph River at a Glance Download
West Prong Little Pigeon River at Aquarium Bridge Stage (ft)Observed: 1.57 ft at 1:25AM Feb 29, 2024Observed: 1.47 ft at 3:10AM Feb 29, 2024Observed: 1.42 ft at 4:40AM Feb 29, 2024Observed: 1.32 ft at 7:10AM Feb 29, 2024Observed: 1.26 ft at 10:40AM Feb 29, 2024Observed: 1.2 ft at 4:40PM Feb 29, 2024Observed: 1.16 ft at 10:40PM Feb 29, 2024Observed: 1.16 ft at 10:40AM Mar 01, 2024Observed: 1.57 ft at 5:10PM Mar 01, 2024Observed: 1.83 ft at 5:25PM Mar 01, 2024Observed: 1.96 ft at 5:40PM Mar 01, 2024Highest Observation: 2.06 ft at 6:25PM Mar 01, 2024Observed: 1.95 ft at 7:55PM Mar 01, 2024Observed: 1.85 ft at 9:25PM Mar 01, 2024Observed: 1.77 ft at 10:40PM Mar 01, 2024Observed: 1.67 ft at 12:55AM Mar 02, 2024Observed: 1.39 ft at 10:40PM Mar 02, 2024Observed: 1.28 ft at 10:40AM Mar 03, 2024Observed: 1.24 ft at 4:40PM Mar 03, 2024Observed: 1.21 ft at 10:40PM Mar 03, 2024Observed: 1.16 ft at 4:40AM Mar 04, 2024Observed: 1.12 ft at 4:40PM Mar 04, 2024Observed: 1.08 ft at 10:40PM Mar 04, 2024HJBT1(plotting HGIRR) Graph Created (1:15AM Mar 5, 2024)ObservedLatest observed value: 1.08 ft at 10:40 PM EST 4-Mar-2024. Flood Stage is 8 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
NOTE: Forecasts are not available for the West Prong Little Pigeon River at Aquarium Bridge. Only observed stages are available for this point.
Return to Area Map
Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - above Sevierville
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 10.5
Flood Stage: 8
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 10.68 ft on 04/13/2020 (P)
(2) 9.99 ft on 02/06/2020 (P)
(3) 9.86 ft on 01/09/2024 (P)

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.86 ft on 01/09/2024 (P)
(2) 10.68 ft on 04/13/2020 (P)
(3) 9.99 ft on 02/06/2020 (P)

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:15
KML Image
Gauge LocationGauge Map Marker
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 Collapse
If you notice any errors in the below information, please contact our Webmaster
10.5 The Aquarium bridge is flooded.
8 River is out of its banks.
About This Location Collapse

Latitude: 35.713611° N, Longitude: 83.512500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 Not Available Not Available  
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Privacy Policy
About Us
Career Opportunities