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Hydrograph River at a Glance Download
Snake River near Shelley Stage (ft)Flow (cfs)Observed: 8.38 ft at 1:15PM Apr 16, 2024Observed: 8.39 ft at 1:30PM Apr 16, 2024Observed: 8.38 ft at 1:45PM Apr 16, 2024Observed: 8.37 ft at 2:00PM Apr 16, 2024Observed: 8.39 ft at 2:15PM Apr 16, 2024Observed: 8.39 ft at 2:30PM Apr 16, 2024Observed: 8.38 ft at 2:45PM Apr 16, 2024Observed: 8.4 ft at 3:00PM Apr 16, 2024Observed: 8.38 ft at 3:15PM Apr 16, 2024Observed: 8.39 ft at 3:30PM Apr 16, 2024Observed: 8.38 ft at 3:45PM Apr 16, 2024Observed: 8.38 ft at 4:00PM Apr 16, 2024Observed: 8.38 ft at 4:15PM Apr 16, 2024Observed: 8.39 ft at 4:30PM Apr 16, 2024Observed: 8.35 ft at 4:45PM Apr 16, 2024Observed: 8.32 ft at 5:00PM Apr 16, 2024Observed: 8.3 ft at 5:15PM Apr 16, 2024Observed: 8.31 ft at 5:30PM Apr 16, 2024Observed: 8.28 ft at 5:45PM Apr 16, 2024Observed: 8.29 ft at 6:00PM Apr 16, 2024Observed: 8.3 ft at 6:15PM Apr 16, 2024Observed: 8.3 ft at 6:30PM Apr 16, 2024Observed: 8.27 ft at 6:45PM Apr 16, 2024Observed: 8.3 ft at 7:00PM Apr 16, 2024Observed: 8.29 ft at 7:15PM Apr 16, 2024Observed: 8.29 ft at 7:30PM Apr 16, 2024Observed: 8.31 ft at 7:45PM Apr 16, 2024Observed: 8.29 ft at 8:00PM Apr 16, 2024Observed: 8.32 ft at 8:15PM Apr 16, 2024Observed: 8.36 ft at 8:30PM Apr 16, 2024Observed: 8.37 ft at 8:45PM Apr 16, 2024Observed: 8.38 ft at 9:00PM Apr 16, 2024Observed: 8.39 ft at 9:15PM Apr 16, 2024Observed: 8.37 ft at 9:30PM Apr 16, 2024Observed: 8.39 ft at 9:45PM Apr 16, 2024Observed: 8.43 ft at 10:00PM Apr 16, 2024Observed: 8.46 ft at 10:15PM Apr 16, 2024Observed: 8.53 ft at 10:30PM Apr 16, 2024Observed: 8.58 ft at 10:45PM Apr 16, 2024Highest Observation: 8.59 ft at 11:00PM Apr 16, 2024Highest Observation: 8.59 ft at 11:15PM Apr 16, 2024Highest Observation: 8.59 ft at 11:30PM Apr 16, 2024Observed: 8.54 ft at 11:45PM Apr 16, 2024Observed: 8.52 ft at 12:00AM Apr 17, 2024Observed: 8.51 ft at 12:15AM Apr 17, 2024Observed: 8.49 ft at 12:30AM Apr 17, 2024Observed: 8.43 ft at 12:45AM Apr 17, 2024Observed: 8.43 ft at 1:00AM Apr 17, 2024Observed: 8.42 ft at 1:15AM Apr 17, 2024Observed: 8.42 ft at 1:30AM Apr 17, 2024Observed: 8.42 ft at 1:45AM Apr 17, 2024Observed: 8.41 ft at 2:00AM Apr 17, 2024Observed: 8.4 ft at 2:15AM Apr 17, 2024Observed: 8.42 ft at 2:30AM Apr 17, 2024Observed: 8.42 ft at 2:45AM Apr 17, 2024Observed: 8.4 ft at 3:00AM Apr 17, 2024Observed: 8.42 ft at 3:15AM Apr 17, 2024Observed: 8.42 ft at 3:30AM Apr 17, 2024Observed: 8.42 ft at 3:45AM Apr 17, 2024Observed: 8.41 ft at 4:00AM Apr 17, 2024Observed: 8.44 ft at 4:15AM Apr 17, 2024Observed: 8.51 ft at 4:30AM Apr 17, 2024Observed: 8.51 ft at 4:45AM Apr 17, 2024Observed: 8.49 ft at 5:00AM Apr 17, 2024Observed: 8.51 ft at 5:15AM Apr 17, 2024Observed: 8.51 ft at 5:30AM Apr 17, 2024Observed: 8.48 ft at 5:45AM Apr 17, 2024Observed: 8.52 ft at 6:00AM Apr 17, 2024Observed: 8.52 ft at 6:15AM Apr 17, 2024Observed: 8.5 ft at 6:30AM Apr 17, 2024Observed: 8.49 ft at 6:45AM Apr 17, 2024Observed: 8.51 ft at 7:00AM Apr 17, 2024Observed: 8.51 ft at 7:15AM Apr 17, 2024Observed: 8.51 ft at 7:30AM Apr 17, 2024Observed: 8.51 ft at 7:45AM Apr 17, 2024Observed: 8.5 ft at 8:00AM Apr 17, 2024Observed: 8.52 ft at 8:15AM Apr 17, 2024Observed: 8.48 ft at 9:30AM Apr 17, 2024Observed: 8.49 ft at 9:45AM Apr 17, 2024Observed: 8.49 ft at 10:00AM Apr 17, 2024Observed: 8.51 ft at 10:15AM Apr 17, 2024Observed: 8.51 ft at 10:30AM Apr 17, 2024Observed: 8.51 ft at 10:45AM Apr 17, 2024Observed: 8.48 ft at 11:00AM Apr 17, 2024Observed: 8.51 ft at 11:15AM Apr 17, 2024Observed: 8.52 ft at 11:30AM Apr 17, 2024Observed: 8.53 ft at 11:45AM Apr 17, 2024Observed: 8.5 ft at 12:00PM Apr 17, 2024Observed: 8.51 ft at 12:15PM Apr 17, 2024Observed: 8.5 ft at 12:30PM Apr 17, 2024Observed: 8.52 ft at 12:45PM Apr 17, 2024Observed: 8.5 ft at 1:00PM Apr 17, 2024Observed: 8.52 ft at 1:15PM Apr 17, 2024Observed: 8.51 ft at 2:30PM Apr 17, 2024Observed: 8.52 ft at 2:45PM Apr 17, 2024Observed: 8.52 ft at 3:00PM Apr 17, 2024Observed: 8.51 ft at 3:15PM Apr 17, 2024Observed: 8.51 ft at 3:30PM Apr 17, 2024Observed: 8.51 ft at 3:45PM Apr 17, 2024Observed: 8.5 ft at 4:00PM Apr 17, 2024Observed: 8.51 ft at 4:15PM Apr 17, 2024Observed: 8.5 ft at 4:30PM Apr 17, 2024Observed: 8.51 ft at 4:45PM Apr 17, 2024Observed: 8.51 ft at 5:00PM Apr 17, 2024Observed: 8.51 ft at 5:15PM Apr 17, 2024Observed: 8.49 ft at 5:30PM Apr 17, 2024Observed: 8.52 ft at 5:45PM Apr 17, 2024Observed: 8.52 ft at 6:00PM Apr 17, 2024Observed: 8.5 ft at 6:15PM Apr 17, 2024Observed: 8.5 ft at 6:30PM Apr 17, 2024Observed: 8.49 ft at 6:45PM Apr 17, 2024Observed: 8.52 ft at 7:00PM Apr 17, 2024Observed: 8.52 ft at 7:15PM Apr 17, 2024Observed: 8.48 ft at 7:30PM Apr 17, 2024Observed: 8.51 ft at 7:45PM Apr 17, 2024Observed: 8.51 ft at 8:00PM Apr 17, 2024Observed: 8.51 ft at 8:15PM Apr 17, 2024Observed: 8.51 ft at 8:30PM Apr 17, 2024Observed: 8.51 ft at 8:45PM Apr 17, 2024Observed: 8.5 ft at 9:00PM Apr 17, 2024Observed: 8.47 ft at 9:15PM Apr 17, 2024Observed: 8.49 ft at 9:30PM Apr 17, 2024Observed: 8.5 ft at 9:45PM Apr 17, 2024Observed: 8.5 ft at 10:00PM Apr 17, 2024Observed: 8.47 ft at 10:15PM Apr 17, 2024Observed: 8.49 ft at 10:30PM Apr 17, 2024Observed: 8.48 ft at 10:45PM Apr 17, 2024Observed: 8.5 ft at 11:00PM Apr 17, 2024Observed: 8.48 ft at 11:15PM Apr 17, 2024Observed: 8.47 ft at 11:30PM Apr 17, 2024Observed: 8.5 ft at 11:45PM Apr 17, 2024Observed: 8.49 ft at 12:00AM Apr 18, 2024Observed: 8.49 ft at 12:15AM Apr 18, 2024Observed: 8.48 ft at 12:30AM Apr 18, 2024Observed: 8.5 ft at 12:45AM Apr 18, 2024Observed: 8.57 ft at 1:00AM Apr 18, 2024Observed: 8.54 ft at 1:15AM Apr 18, 2024Observed: 8.57 ft at 1:30AM Apr 18, 2024Observed: 8.57 ft at 1:45AM Apr 18, 2024Observed: 8.56 ft at 2:00AM Apr 18, 2024Observed: 8.58 ft at 2:15AM Apr 18, 2024Observed: 8.56 ft at 2:30AM Apr 18, 2024Observed: 8.56 ft at 2:45AM Apr 18, 2024Observed: 8.57 ft at 3:00AM Apr 18, 2024Observed: 8.57 ft at 3:15AM Apr 18, 2024Observed: 8.57 ft at 3:30AM Apr 18, 2024Observed: 8.58 ft at 3:45AM Apr 18, 2024Observed: 8.57 ft at 4:00AM Apr 18, 2024Observed: 8.56 ft at 4:15AM Apr 18, 2024Observed: 8.54 ft at 4:30AM Apr 18, 2024Observed: 8.54 ft at 4:45AM Apr 18, 2024Observed: 8.54 ft at 5:00AM Apr 18, 2024Observed: 8.52 ft at 5:15AM Apr 18, 2024Observed: 8.52 ft at 5:30AM Apr 18, 2024Observed: 8.52 ft at 5:45AM Apr 18, 2024Observed: 8.54 ft at 6:00AM Apr 18, 2024Observed: 8.52 ft at 6:15AM Apr 18, 2024Observed: 8.53 ft at 6:30AM Apr 18, 2024Observed: 8.52 ft at 6:45AM Apr 18, 2024Observed: 8.51 ft at 7:00AM Apr 18, 2024Observed: 8.53 ft at 7:15AM Apr 18, 2024Observed: 8.52 ft at 7:30AM Apr 18, 2024Observed: 8.53 ft at 7:45AM Apr 18, 2024Observed: 8.5 ft at 8:00AM Apr 18, 2024Observed: 8.52 ft at 8:15AM Apr 18, 2024Observed: 8.52 ft at 8:30AM Apr 18, 2024Observed: 8.51 ft at 8:45AM Apr 18, 2024Observed: 8.53 ft at 9:00AM Apr 18, 2024Observed: 8.52 ft at 9:15AM Apr 18, 2024Observed: 8.52 ft at 9:30AM Apr 18, 2024Observed: 8.49 ft at 9:45AM Apr 18, 2024Observed: 8.51 ft at 10:00AM Apr 18, 2024Observed: 8.53 ft at 10:15AM Apr 18, 2024Observed: 8.52 ft at 10:30AM Apr 18, 2024Observed: 8.52 ft at 10:45AM Apr 18, 2024Observed: 8.51 ft at 11:00AM Apr 18, 2024Observed: 8.51 ft at 11:15AM Apr 18, 2024Observed: 8.5 ft at 11:30AM Apr 18, 2024Observed: 8.53 ft at 11:45AM Apr 18, 2024Observed: 8.52 ft at 12:00PM Apr 18, 2024Observed: 8.49 ft at 12:15PM Apr 18, 2024Observed: 8.53 ft at 12:30PM Apr 18, 2024Observed: 8.53 ft at 12:45PM Apr 18, 2024Observed: 8.52 ft at 1:00PM Apr 18, 2024Observed: 8.54 ft at 1:15PM Apr 18, 2024Observed: 8.54 ft at 1:30PM Apr 18, 2024Observed: 8.54 ft at 1:45PM Apr 18, 2024Observed: 8.55 ft at 2:00PM Apr 18, 2024Observed: 8.56 ft at 2:15PM Apr 18, 2024Observed: 8.55 ft at 2:30PM Apr 18, 2024Observed: 8.54 ft at 2:45PM Apr 18, 2024Observed: 8.56 ft at 3:00PM Apr 18, 2024Observed: 8.54 ft at 3:15PM Apr 18, 2024Observed: 8.54 ft at 3:30PM Apr 18, 2024Observed: 8.55 ft at 3:45PM Apr 18, 2024Observed: 8.54 ft at 4:00PM Apr 18, 2024Observed: 8.54 ft at 4:15PM Apr 18, 2024Observed: 8.52 ft at 4:30PM Apr 18, 2024Observed: 8.55 ft at 4:45PM Apr 18, 2024Observed: 8.54 ft at 5:00PM Apr 18, 2024Observed: 8.56 ft at 5:15PM Apr 18, 2024Observed: 8.55 ft at 5:30PM Apr 18, 2024Observed: 8.54 ft at 5:45PM Apr 18, 2024Observed: 8.53 ft at 6:00PM Apr 18, 2024Observed: 8.54 ft at 6:15PM Apr 18, 2024Observed: 8.54 ft at 6:30PM Apr 18, 2024Observed: 8.54 ft at 6:45PM Apr 18, 2024Observed: 8.55 ft at 7:00PM Apr 18, 2024Observed: 8.55 ft at 7:15PM Apr 18, 2024Observed: 8.55 ft at 7:30PM Apr 18, 2024Observed: 8.54 ft at 7:45PM Apr 18, 2024Observed: 8.53 ft at 8:00PM Apr 18, 2024Observed: 8.54 ft at 8:15PM Apr 18, 2024Observed: 8.53 ft at 8:30PM Apr 18, 2024Observed: 8.52 ft at 8:45PM Apr 18, 2024Observed: 8.54 ft at 9:00PM Apr 18, 2024Observed: 8.54 ft at 9:15PM Apr 18, 2024Observed: 8.52 ft at 9:30PM Apr 18, 2024Observed: 8.53 ft at 9:45PM Apr 18, 2024Observed: 8.51 ft at 10:00PM Apr 18, 2024Observed: 8.5 ft at 10:15PM Apr 18, 2024Observed: 8.51 ft at 10:30PM Apr 18, 2024Observed: 8.52 ft at 10:45PM Apr 18, 2024Observed: 8.53 ft at 11:00PM Apr 18, 2024Observed: 8.5 ft at 11:15PM Apr 18, 2024Observed: 8.52 ft at 11:30PM Apr 18, 2024Observed: 8.54 ft at 11:45PM Apr 18, 2024Observed: 8.54 ft at 12:00AM Apr 19, 2024Observed: 8.54 ft at 12:15AM Apr 19, 2024Observed: 8.52 ft at 12:30AM Apr 19, 2024Observed: 8.51 ft at 12:45AM Apr 19, 2024Observed: 8.51 ft at 1:00AM Apr 19, 2024Observed: 8.52 ft at 1:15AM Apr 19, 2024Observed: 8.53 ft at 1:30AM Apr 19, 2024Observed: 8.52 ft at 1:45AM Apr 19, 2024Observed: 8.5 ft at 2:00AM Apr 19, 2024Observed: 8.53 ft at 2:15AM Apr 19, 2024Observed: 8.52 ft at 2:30AM Apr 19, 2024Observed: 8.52 ft at 2:45AM Apr 19, 2024Observed: 8.54 ft at 3:00AM Apr 19, 2024Observed: 8.52 ft at 3:15AM Apr 19, 2024Observed: 8.53 ft at 3:30AM Apr 19, 2024Observed: 8.5 ft at 3:45AM Apr 19, 2024Observed: 8.52 ft at 4:00AM Apr 19, 2024Observed: 8.51 ft at 4:15AM Apr 19, 2024Observed: 8.51 ft at 4:30AM Apr 19, 2024Observed: 8.5 ft at 4:45AM Apr 19, 2024Observed: 8.51 ft at 5:00AM Apr 19, 2024Observed: 8.49 ft at 5:15AM Apr 19, 2024Observed: 8.52 ft at 5:30AM Apr 19, 2024Observed: 8.52 ft at 5:45AM Apr 19, 2024Observed: 8.51 ft at 6:00AM Apr 19, 2024Observed: 8.52 ft at 6:15AM Apr 19, 2024Observed: 8.49 ft at 6:30AM Apr 19, 2024Observed: 8.52 ft at 6:45AM Apr 19, 2024Observed: 8.53 ft at 7:00AM Apr 19, 2024Observed: 8.51 ft at 7:15AM Apr 19, 2024Observed: 8.53 ft at 7:30AM Apr 19, 2024Observed: 8.5 ft at 7:45AM Apr 19, 2024Observed: 8.49 ft at 8:00AM Apr 19, 2024Observed: 8.5 ft at 8:15AM Apr 19, 2024Observed: 8.51 ft at 8:30AM Apr 19, 2024Observed: 8.5 ft at 8:45AM Apr 19, 2024Observed: 8.49 ft at 9:00AM Apr 19, 2024Observed: 8.51 ft at 9:15AM Apr 19, 2024Observed: 8.53 ft at 9:30AM Apr 19, 2024Observed: 8.51 ft at 9:45AM Apr 19, 2024Observed: 8.52 ft at 10:00AM Apr 19, 2024Observed: 8.5 ft at 10:15AM Apr 19, 2024Observed: 8.51 ft at 10:30AM Apr 19, 2024Observed: 8.53 ft at 10:45AM Apr 19, 2024Observed: 8.5 ft at 11:00AM Apr 19, 2024Observed: 8.52 ft at 11:15AM Apr 19, 2024Observed: 8.5 ft at 11:30AM Apr 19, 2024Observed: 8.51 ft at 11:45AM Apr 19, 2024Observed: 8.5 ft at 12:00PM Apr 19, 2024Observed: 8.46 ft at 12:15PM Apr 19, 2024Highest Forecast: 8.46 ft 6:00PM Apr 19, 2024Forecast: 8.43 ft 12:00AM Apr 20, 2024Forecast: 8.39 ft 6:00AM Apr 20, 2024Forecast: 8.36 ft 12:00PM Apr 20, 2024Forecast: 8.33 ft 6:00PM Apr 20, 2024Forecast: 8.3 ft 12:00AM Apr 21, 2024Forecast: 8.27 ft 6:00AM Apr 21, 2024Forecast: 8.25 ft 12:00PM Apr 21, 2024Forecast: 8.22 ft 6:00PM Apr 21, 2024Forecast: 8.19 ft 12:00AM Apr 22, 2024Forecast: 8.17 ft 6:00AM Apr 22, 2024Forecast: 8.15 ft 12:00PM Apr 22, 2024Forecast: 8.14 ft 6:00PM Apr 22, 2024Forecast: 8.13 ft 12:00AM Apr 23, 2024Forecast: 8.14 ft 6:00AM Apr 23, 2024Forecast: 8.15 ft 12:00PM Apr 23, 2024Forecast: 8.17 ft 6:00PM Apr 23, 2024Forecast: 8.18 ft 12:00AM Apr 24, 2024Forecast: 8.18 ft 6:00AM Apr 24, 2024Forecast: 8.18 ft 12:00PM Apr 24, 2024Forecast: 8.19 ft 6:00PM Apr 24, 2024Forecast: 8.19 ft 12:00AM Apr 25, 2024Forecast: 8.18 ft 6:00AM Apr 25, 2024Forecast: 8.17 ft 12:00PM Apr 25, 2024Forecast: 8.17 ft 6:00PM Apr 25, 2024Forecast: 8.19 ft 12:00AM Apr 26, 2024Forecast: 8.21 ft 6:00AM Apr 26, 2024Forecast: 8.25 ft 12:00PM Apr 26, 2024USGS--Water Resources of the United StatesSHYI1(plotting HGIRG) Graph Created (1:03PM Apr 19, 2024)ObservedForecast (issued 9:38AM Apr 19)Latest observed value: 8.46 ft at 12:15 PM MDT 19-Apr-2024. Flood Stage is 12.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts for the Snake River near Shelley are issued routinely year-round.

Return to Area Map
Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Blackfoot
Flood Categories (in feet)
Major Flood Stage: 13.5
Moderate Flood Stage: 13
Flood Stage: 12.5
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 16.97 ft on 06/17/1918
(2) 16.05 ft on 06/17/1997
(3) 14.68 ft on 06/22/1917
(4) 14.36 ft on 05/29/1928
(5) 13.15 ft on 05/28/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.01 ft on 05/31/2022
(2) 8.74 ft on 08/05/2021
(3) 10.11 ft on 06/07/2020
(4) 11.04 ft on 04/24/2019
(5) 11.85 ft on 06/03/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.22 ft on 11/05/1934
Zoom Level:15
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
13.5 Major flooding of farmland is likely. Water may cover a few county roads near the river. Low lying properties near the river around Shelley and Firth may be inundated with water.
13 Moderate lowland flooding will occur along the river.
12.5 Water will cover the end of Highline Road near the riverjust south of Firth. Some outbuildings at the end of Highline Road will have water in or around them and water may cover some driveways. Lowland flooding will occur adjacent to the river around Shelley downstream to near Rose.
12
Photos
(1) SHYI1_googleearth
(2) SHYI1_map
(3) SHYI1_SnakeShelley_gage
(4) SHYI1_looking_upstream
(5) SHYI1_looking_downstream
About This Location Collapse

Latitude: 43.413125° N, Longitude: 112.134900° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12.5 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 4599.0 ft 4611.5 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:
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 45400 CFS or 15.62 ft
50   Year Peak Flood 51400 CFS or 16.68 ft
100 Year Peak Flood 57300 CFS or 17.69 ft
200 Year Peak Flood 63200 CFS or 18.67 ft
500 Year Peak Flood 71100 CFS or 19.94 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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