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Hydrograph River at a Glance Download
Snake River near Blackfoot (Tilden Bridge-Ft. Hall) Stage (ft)Flow (cfs)Observed: 6.07 ft at 12:45AM May 17, 2024Observed: 6.08 ft at 1:00AM May 17, 2024Observed: 6.07 ft at 1:15AM May 17, 2024Observed: 6.09 ft at 1:30AM May 17, 2024Observed: 6.09 ft at 1:45AM May 17, 2024Observed: 6.08 ft at 2:00AM May 17, 2024Observed: 6.09 ft at 2:15AM May 17, 2024Observed: 6.07 ft at 2:30AM May 17, 2024Observed: 6.07 ft at 2:45AM May 17, 2024Highest Observation: 6.1 ft at 3:00AM May 17, 2024Observed: 6.07 ft at 3:15AM May 17, 2024Observed: 6.06 ft at 3:30AM May 17, 2024Observed: 6.09 ft at 3:45AM May 17, 2024Observed: 6.07 ft at 4:00AM May 17, 2024Observed: 6.06 ft at 4:15AM May 17, 2024Observed: 6.07 ft at 4:30AM May 17, 2024Observed: 6.06 ft at 4:45AM May 17, 2024Observed: 6.07 ft at 5:00AM May 17, 2024Observed: 6.05 ft at 5:15AM May 17, 2024Observed: 6.06 ft at 5:30AM May 17, 2024Observed: 6.05 ft at 5:45AM May 17, 2024Observed: 6.06 ft at 6:00AM May 17, 2024Observed: 6.08 ft at 6:15AM May 17, 2024Observed: 6.04 ft at 6:30AM May 17, 2024Observed: 6.05 ft at 6:45AM May 17, 2024Observed: 6.05 ft at 7:00AM May 17, 2024Observed: 6.05 ft at 7:15AM May 17, 2024Observed: 6.06 ft at 7:30AM May 17, 2024Observed: 6.08 ft at 7:45AM May 17, 2024Observed: 6.06 ft at 8:00AM May 17, 2024Observed: 6.03 ft at 8:15AM May 17, 2024Observed: 6.06 ft at 8:30AM May 17, 2024Observed: 6.03 ft at 8:45AM May 17, 2024Observed: 6.02 ft at 9:00AM May 17, 2024Observed: 6.03 ft at 9:15AM May 17, 2024Observed: 6.02 ft at 9:30AM May 17, 2024Observed: 6.02 ft at 9:45AM May 17, 2024Observed: 6.01 ft at 10:00AM May 17, 2024Observed: 6.02 ft at 10:15AM May 17, 2024Observed: 6.01 ft at 10:30AM May 17, 2024Observed: 5.99 ft at 10:45AM May 17, 2024Observed: 5.99 ft at 11:00AM May 17, 2024Observed: 5.99 ft at 11:15AM May 17, 2024Observed: 5.97 ft at 11:30AM May 17, 2024Observed: 5.98 ft at 11:45AM May 17, 2024Observed: 5.97 ft at 12:00PM May 17, 2024Observed: 5.99 ft at 12:15PM May 17, 2024Observed: 5.98 ft at 12:30PM May 17, 2024Observed: 5.99 ft at 12:45PM May 17, 2024Observed: 5.99 ft at 1:00PM May 17, 2024Observed: 5.96 ft at 1:15PM May 17, 2024Observed: 5.96 ft at 1:30PM May 17, 2024Observed: 5.95 ft at 1:45PM May 17, 2024Observed: 5.96 ft at 2:00PM May 17, 2024Observed: 5.95 ft at 2:15PM May 17, 2024Observed: 5.95 ft at 2:30PM May 17, 2024Observed: 5.94 ft at 2:45PM May 17, 2024Observed: 5.96 ft at 3:00PM May 17, 2024Observed: 5.95 ft at 3:15PM May 17, 2024Observed: 5.96 ft at 3:30PM May 17, 2024Observed: 5.95 ft at 3:45PM May 17, 2024Observed: 5.92 ft at 4:00PM May 17, 2024Observed: 5.95 ft at 4:15PM May 17, 2024Observed: 5.94 ft at 4:30PM May 17, 2024Observed: 5.93 ft at 4:45PM May 17, 2024Observed: 5.97 ft at 5:00PM May 17, 2024Observed: 5.99 ft at 5:15PM May 17, 2024Observed: 5.97 ft at 5:30PM May 17, 2024Observed: 6.04 ft at 5:45PM May 17, 2024Observed: 5.95 ft at 6:00PM May 17, 2024Observed: 6 ft at 6:15PM May 17, 2024Observed: 6.06 ft at 6:45PM May 17, 2024Observed: 6.02 ft at 7:00PM May 17, 2024Observed: 6.06 ft at 7:15PM May 17, 2024Observed: 5.99 ft at 7:45PM May 17, 2024Observed: 6.02 ft at 8:00PM May 17, 2024Observed: 5.93 ft at 8:15PM May 17, 2024Observed: 6 ft at 8:30PM May 17, 2024Observed: 5.96 ft at 8:45PM May 17, 2024Observed: 5.93 ft at 9:00PM May 17, 2024Observed: 5.92 ft at 9:15PM May 17, 2024Observed: 5.86 ft at 9:30PM May 17, 2024Observed: 5.86 ft at 9:45PM May 17, 2024Observed: 5.84 ft at 10:00PM May 17, 2024Observed: 5.84 ft at 10:15PM May 17, 2024Observed: 5.85 ft at 10:30PM May 17, 2024Observed: 5.85 ft at 10:45PM May 17, 2024Observed: 5.83 ft at 11:00PM May 17, 2024Observed: 5.83 ft at 11:15PM May 17, 2024Observed: 5.84 ft at 11:30PM May 17, 2024Observed: 5.85 ft at 11:45PM May 17, 2024Observed: 5.85 ft at 12:00AM May 18, 2024Observed: 5.84 ft at 12:15AM May 18, 2024Observed: 5.85 ft at 12:30AM May 18, 2024Observed: 5.84 ft at 12:45AM May 18, 2024Observed: 5.86 ft at 1:00AM May 18, 2024Observed: 5.85 ft at 1:15AM May 18, 2024Observed: 5.87 ft at 1:30AM May 18, 2024Observed: 5.87 ft at 1:45AM May 18, 2024Observed: 5.85 ft at 2:00AM May 18, 2024Observed: 5.87 ft at 2:15AM May 18, 2024Observed: 5.86 ft at 2:30AM May 18, 2024Observed: 5.87 ft at 2:45AM May 18, 2024Observed: 5.87 ft at 3:00AM May 18, 2024Observed: 5.88 ft at 3:15AM May 18, 2024Observed: 5.86 ft at 3:30AM May 18, 2024Observed: 5.84 ft at 3:45AM May 18, 2024Observed: 5.83 ft at 4:00AM May 18, 2024Observed: 5.83 ft at 4:15AM May 18, 2024Observed: 5.85 ft at 4:30AM May 18, 2024Observed: 5.85 ft at 4:45AM May 18, 2024Observed: 5.85 ft at 5:00AM May 18, 2024Observed: 5.86 ft at 5:15AM May 18, 2024Observed: 5.87 ft at 5:30AM May 18, 2024Observed: 5.89 ft at 5:45AM May 18, 2024Observed: 5.91 ft at 6:00AM May 18, 2024Observed: 5.94 ft at 6:15AM May 18, 2024Observed: 5.96 ft at 6:30AM May 18, 2024Observed: 5.95 ft at 6:45AM May 18, 2024Observed: 5.96 ft at 7:00AM May 18, 2024Observed: 5.98 ft at 7:15AM May 18, 2024Observed: 5.99 ft at 7:30AM May 18, 2024Observed: 6 ft at 7:45AM May 18, 2024Observed: 6.01 ft at 8:00AM May 18, 2024Observed: 6.02 ft at 8:15AM May 18, 2024Observed: 6.02 ft at 8:30AM May 18, 2024Observed: 6.01 ft at 8:45AM May 18, 2024Observed: 6.01 ft at 9:00AM May 18, 2024Observed: 6.01 ft at 9:15AM May 18, 2024Observed: 6 ft at 9:30AM May 18, 2024Observed: 5.99 ft at 9:45AM May 18, 2024Observed: 5.99 ft at 10:00AM May 18, 2024Observed: 5.98 ft at 10:15AM May 18, 2024Observed: 5.96 ft at 10:30AM May 18, 2024Observed: 5.95 ft at 10:45AM May 18, 2024Observed: 5.95 ft at 11:00AM May 18, 2024Observed: 5.95 ft at 11:15AM May 18, 2024Observed: 5.95 ft at 11:30AM May 18, 2024Observed: 5.93 ft at 11:45AM May 18, 2024Observed: 5.93 ft at 12:00PM May 18, 2024Observed: 5.91 ft at 12:15PM May 18, 2024Observed: 5.89 ft at 12:30PM May 18, 2024Observed: 5.92 ft at 12:45PM May 18, 2024Observed: 5.9 ft at 1:00PM May 18, 2024Observed: 5.91 ft at 1:15PM May 18, 2024Observed: 5.91 ft at 1:30PM May 18, 2024Observed: 5.9 ft at 1:45PM May 18, 2024Observed: 5.9 ft at 2:00PM May 18, 2024Observed: 5.92 ft at 2:15PM May 18, 2024Observed: 5.9 ft at 2:30PM May 18, 2024Observed: 5.9 ft at 2:45PM May 18, 2024Observed: 5.9 ft at 3:00PM May 18, 2024Observed: 5.89 ft at 3:15PM May 18, 2024Observed: 5.9 ft at 3:30PM May 18, 2024Observed: 5.89 ft at 3:45PM May 18, 2024Observed: 5.89 ft at 4:00PM May 18, 2024Observed: 5.9 ft at 4:15PM May 18, 2024Observed: 5.93 ft at 4:30PM May 18, 2024Observed: 5.89 ft at 4:45PM May 18, 2024Observed: 5.88 ft at 5:00PM May 18, 2024Observed: 5.88 ft at 5:15PM May 18, 2024Observed: 5.9 ft at 5:30PM May 18, 2024Observed: 5.89 ft at 5:45PM May 18, 2024Observed: 5.88 ft at 6:00PM May 18, 2024Observed: 5.88 ft at 6:15PM May 18, 2024Observed: 5.9 ft at 6:30PM May 18, 2024Observed: 5.88 ft at 6:45PM May 18, 2024Observed: 5.88 ft at 7:00PM May 18, 2024Observed: 5.89 ft at 7:15PM May 18, 2024Observed: 5.89 ft at 7:30PM May 18, 2024Observed: 5.91 ft at 7:45PM May 18, 2024Observed: 5.89 ft at 8:00PM May 18, 2024Observed: 5.91 ft at 8:15PM May 18, 2024Observed: 5.93 ft at 8:30PM May 18, 2024Observed: 5.92 ft at 8:45PM May 18, 2024Observed: 5.95 ft at 9:00PM May 18, 2024Observed: 5.94 ft at 9:15PM May 18, 2024Observed: 5.94 ft at 9:30PM May 18, 2024Observed: 5.95 ft at 9:45PM May 18, 2024Observed: 5.94 ft at 10:00PM May 18, 2024Observed: 5.94 ft at 10:15PM May 18, 2024Observed: 5.96 ft at 10:30PM May 18, 2024Observed: 5.94 ft at 10:45PM May 18, 2024Observed: 5.96 ft at 11:00PM May 18, 2024Observed: 5.95 ft at 11:15PM May 18, 2024Observed: 5.95 ft at 11:30PM May 18, 2024Observed: 5.97 ft at 11:45PM May 18, 2024Observed: 5.95 ft at 12:00AM May 19, 2024Observed: 5.93 ft at 12:15AM May 19, 2024Observed: 5.94 ft at 12:30AM May 19, 2024Observed: 5.95 ft at 12:45AM May 19, 2024Observed: 5.95 ft at 1:00AM May 19, 2024Observed: 5.96 ft at 1:15AM May 19, 2024Observed: 5.96 ft at 1:30AM May 19, 2024Observed: 5.95 ft at 1:45AM May 19, 2024Observed: 5.95 ft at 2:00AM May 19, 2024Observed: 5.96 ft at 2:15AM May 19, 2024Observed: 5.94 ft at 2:30AM May 19, 2024Observed: 5.94 ft at 2:45AM May 19, 2024Observed: 5.94 ft at 3:00AM May 19, 2024Observed: 5.94 ft at 3:15AM May 19, 2024Observed: 5.94 ft at 3:30AM May 19, 2024Observed: 5.95 ft at 3:45AM May 19, 2024Observed: 5.94 ft at 4:00AM May 19, 2024Observed: 5.96 ft at 4:15AM May 19, 2024Observed: 5.95 ft at 4:30AM May 19, 2024Observed: 5.95 ft at 4:45AM May 19, 2024Observed: 5.96 ft at 5:00AM May 19, 2024Observed: 5.96 ft at 5:15AM May 19, 2024Observed: 5.97 ft at 5:30AM May 19, 2024Observed: 5.97 ft at 5:45AM May 19, 2024Observed: 5.95 ft at 6:00AM May 19, 2024Observed: 5.96 ft at 6:15AM May 19, 2024Observed: 5.97 ft at 6:30AM May 19, 2024Observed: 5.96 ft at 6:45AM May 19, 2024Observed: 5.95 ft at 7:00AM May 19, 2024Observed: 5.95 ft at 7:15AM May 19, 2024Observed: 5.97 ft at 7:30AM May 19, 2024Observed: 5.97 ft at 7:45AM May 19, 2024Observed: 5.96 ft at 8:00AM May 19, 2024Observed: 5.96 ft at 8:15AM May 19, 2024Observed: 5.95 ft at 8:30AM May 19, 2024Observed: 5.95 ft at 8:45AM May 19, 2024Observed: 5.96 ft at 9:00AM May 19, 2024Observed: 5.95 ft at 9:15AM May 19, 2024Observed: 5.96 ft at 9:30AM May 19, 2024Observed: 5.97 ft at 9:45AM May 19, 2024Observed: 5.97 ft at 10:00AM May 19, 2024Observed: 5.97 ft at 10:15AM May 19, 2024Observed: 5.97 ft at 10:30AM May 19, 2024Observed: 5.98 ft at 10:45AM May 19, 2024Observed: 5.96 ft at 11:00AM May 19, 2024Observed: 5.98 ft at 11:15AM May 19, 2024Observed: 5.98 ft at 11:30AM May 19, 2024Observed: 5.97 ft at 11:45AM May 19, 2024Observed: 5.99 ft at 12:00PM May 19, 2024Observed: 5.98 ft at 12:15PM May 19, 2024Observed: 5.98 ft at 12:30PM May 19, 2024Observed: 6.01 ft at 12:45PM May 19, 2024Observed: 5.99 ft at 1:00PM May 19, 2024Observed: 5.99 ft at 1:15PM May 19, 2024Observed: 6 ft at 1:30PM May 19, 2024Observed: 5.99 ft at 1:45PM May 19, 2024Observed: 5.99 ft at 2:00PM May 19, 2024Observed: 5.98 ft at 2:15PM May 19, 2024Observed: 5.99 ft at 2:30PM May 19, 2024Observed: 6 ft at 2:45PM May 19, 2024Observed: 6.02 ft at 3:00PM May 19, 2024Observed: 5.99 ft at 3:15PM May 19, 2024Observed: 6 ft at 3:30PM May 19, 2024Observed: 6.03 ft at 3:45PM May 19, 2024Observed: 5.99 ft at 4:00PM May 19, 2024Observed: 6.01 ft at 4:15PM May 19, 2024Observed: 6.01 ft at 4:30PM May 19, 2024Observed: 6 ft at 4:45PM May 19, 2024Observed: 6 ft at 5:00PM May 19, 2024Observed: 5.99 ft at 5:15PM May 19, 2024Observed: 6 ft at 5:30PM May 19, 2024Observed: 5.97 ft at 5:45PM May 19, 2024Observed: 5.97 ft at 6:00PM May 19, 2024Observed: 5.99 ft at 6:15PM May 19, 2024Observed: 5.96 ft at 6:30PM May 19, 2024Observed: 5.97 ft at 6:45PM May 19, 2024Observed: 5.97 ft at 7:00PM May 19, 2024Observed: 5.98 ft at 7:15PM May 19, 2024Observed: 5.97 ft at 7:30PM May 19, 2024Observed: 5.96 ft at 7:45PM May 19, 2024Observed: 6 ft at 8:00PM May 19, 2024Observed: 5.98 ft at 8:15PM May 19, 2024Observed: 5.99 ft at 8:30PM May 19, 2024Observed: 5.97 ft at 8:45PM May 19, 2024Observed: 5.95 ft at 9:00PM May 19, 2024Observed: 5.97 ft at 9:15PM May 19, 2024Observed: 5.98 ft at 9:30PM May 19, 2024Observed: 5.99 ft at 9:45PM May 19, 2024Observed: 5.98 ft at 10:00PM May 19, 2024Observed: 5.98 ft at 10:15PM May 19, 2024Observed: 5.99 ft at 10:30PM May 19, 2024Observed: 5.99 ft at 10:45PM May 19, 2024Observed: 5.99 ft at 11:00PM May 19, 2024Observed: 5.99 ft at 11:15PM May 19, 2024Observed: 6 ft at 11:30PM May 19, 2024Observed: 6.02 ft at 11:45PM May 19, 2024Observed: 6.04 ft at 12:00AM May 20, 2024Observed: 6.04 ft at 12:15AM May 20, 2024Forecast: 6.01 ft 6:00AM May 20, 2024Forecast: 6.03 ft 12:00PM May 20, 2024Forecast: 6.04 ft 6:00PM May 20, 2024Forecast: 6.03 ft 12:00AM May 21, 2024Forecast: 6.03 ft 6:00AM May 21, 2024Forecast: 6.03 ft 12:00PM May 21, 2024Forecast: 6.04 ft 6:00PM May 21, 2024Forecast: 6.05 ft 12:00AM May 22, 2024Forecast: 6.07 ft 6:00AM May 22, 2024Forecast: 6.08 ft 12:00PM May 22, 2024Highest Forecast: 6.09 ft 6:00PM May 22, 2024Highest Forecast: 6.09 ft 12:00AM May 23, 2024Forecast: 6.08 ft 6:00AM May 23, 2024Forecast: 6.07 ft 12:00PM May 23, 2024Forecast: 6.06 ft 6:00PM May 23, 2024Forecast: 6.04 ft 12:00AM May 24, 2024Forecast: 6.03 ft 6:00AM May 24, 2024Forecast: 6.03 ft 12:00PM May 24, 2024Forecast: 6.03 ft 6:00PM May 24, 2024Forecast: 6.04 ft 12:00AM May 25, 2024Forecast: 6.05 ft 6:00AM May 25, 2024Forecast: 6.06 ft 12:00PM May 25, 2024Forecast: 6.05 ft 6:00PM May 25, 2024Forecast: 6.04 ft 12:00AM May 26, 2024Forecast: 6.01 ft 6:00AM May 26, 2024Forecast: 5.97 ft 12:00PM May 26, 2024Forecast: 5.91 ft 6:00PM May 26, 2024Forecast: 5.85 ft 12:00AM May 27, 2024USGS--Water Resources of the United StatesBFTI1(plotting HGIRG) Graph Created (12:33AM May 20, 2024)ObservedForecast (issued 4:21PM May 19)Latest observed value: 6.04 ft at 12:15 AM MDT 20-May-2024. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Snake River near Blackfoot (Tilden Bridge-Ft. Hall) are issued routinely year-round.
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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at American Falls
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 11
Action Stage: 10.2
Low Stage (in feet): -9999

Historic Crests
(1) 14.80 ft on 06/18/1918
(2) 14.80 ft on 06/18/1997
(3) 12.67 ft on 06/22/1917
(4) 12.63 ft on 06/08/1914
(5) 12.32 ft on 05/18/1984
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.47 ft on 09/13/2022
(2) 6.59 ft on 08/05/2021
(3) 8.42 ft on 07/02/2020
(4) 9.82 ft on 04/28/2019
(5) 10.57 ft on 06/04/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.80 ft on 11/10/1934
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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 Collapse
If you notice any errors in the below information, please contact our Webmaster
11 Minor flooding in low-lying areas and croplands along with seep and ponding near the river. Residents along the river may experience water levels that impact their property.
10.2 Low-lying areas and croplands may experience seep and ponding near the river. Residents along the river may experience water levels nearing impact levels.
About This Location Collapse

Latitude: 43.125278° N, Longitude: 112.518889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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 4399.83 ft 4300.83 ft  

Current/Historical Observations:

Additional Information Collapse
Historical Peak Flows     (Scroll to Streamflow Statistics for more years)
USGS Historical Peak Flows Explanation
Graphical View of Historical Peak Flows and Gage Analysis 

25   Year Peak Flood 36100 CFS or 13.38 ft
50   Year Peak Flood 38600 CFS or 13.70 ft
100 Year Peak Flood 40600 CFS or 13.93 ft
200 Year Peak Flood 42300 CFS or 14.13 ft
500 Year Peak Flood 44000 CFS or 14.32 ft
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
Pocatello Weather Forecast Office
1945 Beechcraft Ave
Pocatello, ID 83204
(208) 232-9306
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Page last modified: 2-Nov-2020 7:28 PM
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