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Hydrograph River at a Glance Download
Eastern Idaho Reservoirs at American Falls Pool (ft)Observed: 4354.25 ft at 3:15PM Apr 28, 2024Observed: 4354.26 ft at 3:30PM Apr 28, 2024Observed: 4354.27 ft at 3:45PM Apr 28, 2024Observed: 4354.25 ft at 4:00PM Apr 28, 2024Observed: 4354.23 ft at 4:15PM Apr 28, 2024Observed: 4354.23 ft at 4:30PM Apr 28, 2024Observed: 4354.23 ft at 4:45PM Apr 28, 2024Observed: 4354.23 ft at 5:00PM Apr 28, 2024Observed: 4354.24 ft at 5:15PM Apr 28, 2024Observed: 4354.26 ft at 5:30PM Apr 28, 2024Observed: 4354.25 ft at 5:45PM Apr 28, 2024Observed: 4354.23 ft at 6:00PM Apr 28, 2024Observed: 4354.23 ft at 6:15PM Apr 28, 2024Observed: 4354.25 ft at 6:30PM Apr 28, 2024Observed: 4354.25 ft at 6:45PM Apr 28, 2024Observed: 4354.26 ft at 7:00PM Apr 28, 2024Observed: 4354.28 ft at 7:15PM Apr 28, 2024Observed: 4354.28 ft at 7:30PM Apr 28, 2024Observed: 4354.26 ft at 7:45PM Apr 28, 2024Observed: 4354.26 ft at 8:00PM Apr 28, 2024Observed: 4354.28 ft at 8:15PM Apr 28, 2024Observed: 4354.28 ft at 8:30PM Apr 28, 2024Observed: 4354.28 ft at 8:45PM Apr 28, 2024Observed: 4354.29 ft at 9:00PM Apr 28, 2024Observed: 4354.29 ft at 9:15PM Apr 28, 2024Observed: 4354.28 ft at 9:30PM Apr 28, 2024Observed: 4354.27 ft at 9:45PM Apr 28, 2024Observed: 4354.27 ft at 10:00PM Apr 28, 2024Observed: 4354.27 ft at 10:15PM Apr 28, 2024Observed: 4354.26 ft at 10:30PM Apr 28, 2024Observed: 4354.26 ft at 10:45PM Apr 28, 2024Observed: 4354.26 ft at 11:00PM Apr 28, 2024Observed: 4354.26 ft at 11:15PM Apr 28, 2024Observed: 4354.26 ft at 11:30PM Apr 28, 2024Observed: 4354.26 ft at 11:45PM Apr 28, 2024Observed: 4354.27 ft at 12:00AM Apr 29, 2024Observed: 4354.27 ft at 12:15AM Apr 29, 2024Observed: 4354.27 ft at 12:30AM Apr 29, 2024Observed: 4354.26 ft at 12:45AM Apr 29, 2024Observed: 4354.27 ft at 1:00AM Apr 29, 2024Observed: 4354.26 ft at 1:15AM Apr 29, 2024Observed: 4354.26 ft at 1:30AM Apr 29, 2024Observed: 4354.28 ft at 1:45AM Apr 29, 2024Observed: 4354.3 ft at 2:00AM Apr 29, 2024Observed: 4354.3 ft at 2:15AM Apr 29, 2024Observed: 4354.29 ft at 2:30AM Apr 29, 2024Observed: 4354.29 ft at 2:45AM Apr 29, 2024Observed: 4354.28 ft at 3:00AM Apr 29, 2024Observed: 4354.28 ft at 3:15AM Apr 29, 2024Observed: 4354.29 ft at 3:30AM Apr 29, 2024Observed: 4354.3 ft at 3:45AM Apr 29, 2024Observed: 4354.3 ft at 4:00AM Apr 29, 2024Observed: 4354.31 ft at 4:15AM Apr 29, 2024Observed: 4354.31 ft at 4:30AM Apr 29, 2024Observed: 4354.3 ft at 4:45AM Apr 29, 2024Observed: 4354.31 ft at 5:00AM Apr 29, 2024Observed: 4354.3 ft at 5:15AM Apr 29, 2024Observed: 4354.3 ft at 5:30AM Apr 29, 2024Observed: 4354.31 ft at 5:45AM Apr 29, 2024Observed: 4354.31 ft at 6:00AM Apr 29, 2024Observed: 4354.31 ft at 6:15AM Apr 29, 2024Observed: 4354.31 ft at 6:30AM Apr 29, 2024Observed: 4354.32 ft at 6:45AM Apr 29, 2024Observed: 4354.32 ft at 7:00AM Apr 29, 2024Observed: 4354.31 ft at 7:15AM Apr 29, 2024Observed: 4354.31 ft at 7:30AM Apr 29, 2024Observed: 4354.31 ft at 7:45AM Apr 29, 2024Observed: 4354.31 ft at 8:00AM Apr 29, 2024Observed: 4354.31 ft at 8:15AM Apr 29, 2024Observed: 4354.31 ft at 8:30AM Apr 29, 2024Observed: 4354.31 ft at 8:45AM Apr 29, 2024Observed: 4354.3 ft at 9:00AM Apr 29, 2024Observed: 4354.24 ft at 9:15AM Apr 29, 2024Observed: 4354.25 ft at 9:30AM Apr 29, 2024Observed: 4354.31 ft at 9:45AM Apr 29, 2024Observed: 4354.3 ft at 10:00AM Apr 29, 2024Observed: 4354.28 ft at 10:15AM Apr 29, 2024Observed: 4354.27 ft at 10:30AM Apr 29, 2024Observed: 4354.26 ft at 10:45AM Apr 29, 2024Observed: 4354.25 ft at 11:00AM Apr 29, 2024Observed: 4354.22 ft at 11:15AM Apr 29, 2024Observed: 4354.2 ft at 11:30AM Apr 29, 2024Observed: 4354.23 ft at 11:45AM Apr 29, 2024Observed: 4354.24 ft at 12:00PM Apr 29, 2024Observed: 4354.23 ft at 12:15PM Apr 29, 2024Observed: 4354.25 ft at 12:30PM Apr 29, 2024Observed: 4354.29 ft at 12:45PM Apr 29, 2024Observed: 4354.27 ft at 1:00PM Apr 29, 2024Observed: 4354.26 ft at 1:15PM Apr 29, 2024Observed: 4354.26 ft at 1:30PM Apr 29, 2024Observed: 4354.26 ft at 1:45PM Apr 29, 2024Observed: 4354.24 ft at 2:00PM Apr 29, 2024Observed: 4354.23 ft at 2:15PM Apr 29, 2024Observed: 4354.26 ft at 2:30PM Apr 29, 2024Observed: 4354.27 ft at 2:45PM Apr 29, 2024Observed: 4354.26 ft at 3:00PM Apr 29, 2024Observed: 4354.24 ft at 3:15PM Apr 29, 2024Observed: 4354.25 ft at 3:30PM Apr 29, 2024Observed: 4354.26 ft at 3:45PM Apr 29, 2024Observed: 4354.26 ft at 4:00PM Apr 29, 2024Observed: 4354.25 ft at 4:15PM Apr 29, 2024Observed: 4354.26 ft at 4:30PM Apr 29, 2024Observed: 4354.27 ft at 4:45PM Apr 29, 2024Observed: 4354.24 ft at 5:00PM Apr 29, 2024Observed: 4354.21 ft at 5:15PM Apr 29, 2024Observed: 4354.22 ft at 5:30PM Apr 29, 2024Observed: 4354.2 ft at 5:45PM Apr 29, 2024Observed: 4354.21 ft at 6:00PM Apr 29, 2024Observed: 4354.17 ft at 6:15PM Apr 29, 2024Observed: 4354.21 ft at 6:30PM Apr 29, 2024Observed: 4354.22 ft at 6:45PM Apr 29, 2024Observed: 4354.19 ft at 7:00PM Apr 29, 2024Observed: 4354.17 ft at 7:15PM Apr 29, 2024Observed: 4354.16 ft at 7:30PM Apr 29, 2024Observed: 4354.18 ft at 7:45PM Apr 29, 2024Observed: 4354.15 ft at 8:00PM Apr 29, 2024Observed: 4354.13 ft at 8:15PM Apr 29, 2024Observed: 4354.17 ft at 8:30PM Apr 29, 2024Observed: 4354.27 ft at 8:45PM Apr 29, 2024Observed: 4354.32 ft at 9:00PM Apr 29, 2024Observed: 4354.32 ft at 9:15PM Apr 29, 2024Observed: 4354.3 ft at 9:30PM Apr 29, 2024Observed: 4354.25 ft at 9:45PM Apr 29, 2024Observed: 4354.18 ft at 10:00PM Apr 29, 2024Observed: 4354.1 ft at 10:15PM Apr 29, 2024Observed: 4354.11 ft at 10:30PM Apr 29, 2024Observed: 4354.21 ft at 10:45PM Apr 29, 2024Observed: 4354.29 ft at 11:00PM Apr 29, 2024Observed: 4354.33 ft at 11:15PM Apr 29, 2024Observed: 4354.33 ft at 11:30PM Apr 29, 2024Observed: 4354.26 ft at 11:45PM Apr 29, 2024Observed: 4354.17 ft at 12:00AM Apr 30, 2024Observed: 4354.12 ft at 12:15AM Apr 30, 2024Observed: 4354.14 ft at 12:30AM Apr 30, 2024Observed: 4354.2 ft at 12:45AM Apr 30, 2024Observed: 4354.24 ft at 1:00AM Apr 30, 2024Observed: 4354.25 ft at 1:15AM Apr 30, 2024Observed: 4354.25 ft at 1:30AM Apr 30, 2024Observed: 4354.26 ft at 1:45AM Apr 30, 2024Observed: 4354.19 ft at 2:00AM Apr 30, 2024Observed: 4354.17 ft at 2:15AM Apr 30, 2024Observed: 4354.2 ft at 2:30AM Apr 30, 2024Observed: 4354.25 ft at 2:45AM Apr 30, 2024Observed: 4354.27 ft at 3:00AM Apr 30, 2024Observed: 4354.27 ft at 3:15AM Apr 30, 2024Observed: 4354.27 ft at 3:30AM Apr 30, 2024Observed: 4354.24 ft at 3:45AM Apr 30, 2024Observed: 4354.21 ft at 4:00AM Apr 30, 2024Observed: 4354.21 ft at 4:15AM Apr 30, 2024Observed: 4354.22 ft at 4:30AM Apr 30, 2024Observed: 4354.24 ft at 4:45AM Apr 30, 2024Observed: 4354.25 ft at 5:00AM Apr 30, 2024Observed: 4354.24 ft at 5:15AM Apr 30, 2024Observed: 4354.22 ft at 5:30AM Apr 30, 2024Observed: 4354.19 ft at 5:45AM Apr 30, 2024Observed: 4354.19 ft at 6:00AM Apr 30, 2024Observed: 4354.23 ft at 6:15AM Apr 30, 2024Observed: 4354.25 ft at 6:30AM Apr 30, 2024Observed: 4354.25 ft at 6:45AM Apr 30, 2024Observed: 4354.25 ft at 7:00AM Apr 30, 2024Observed: 4354.23 ft at 7:15AM Apr 30, 2024Observed: 4354.22 ft at 7:30AM Apr 30, 2024Observed: 4354.21 ft at 7:45AM Apr 30, 2024Observed: 4354.23 ft at 8:00AM Apr 30, 2024Observed: 4354.26 ft at 8:15AM Apr 30, 2024Observed: 4354.27 ft at 8:30AM Apr 30, 2024Observed: 4354.28 ft at 8:45AM Apr 30, 2024Observed: 4354.3 ft at 9:00AM Apr 30, 2024Observed: 4354.28 ft at 9:15AM Apr 30, 2024Observed: 4354.24 ft at 9:30AM Apr 30, 2024Observed: 4354.23 ft at 9:45AM Apr 30, 2024Observed: 4354.24 ft at 10:00AM Apr 30, 2024Observed: 4354.25 ft at 10:15AM Apr 30, 2024Observed: 4354.27 ft at 10:30AM Apr 30, 2024Observed: 4354.28 ft at 10:45AM Apr 30, 2024Observed: 4354.28 ft at 11:00AM Apr 30, 2024Observed: 4354.25 ft at 11:15AM Apr 30, 2024Observed: 4354.24 ft at 11:30AM Apr 30, 2024Observed: 4354.25 ft at 11:45AM Apr 30, 2024Observed: 4354.26 ft at 12:00PM Apr 30, 2024Observed: 4354.27 ft at 12:15PM Apr 30, 2024Observed: 4354.28 ft at 12:30PM Apr 30, 2024Observed: 4354.29 ft at 12:45PM Apr 30, 2024Observed: 4354.28 ft at 1:00PM Apr 30, 2024Observed: 4354.26 ft at 1:15PM Apr 30, 2024Observed: 4354.26 ft at 1:30PM Apr 30, 2024Observed: 4354.27 ft at 1:45PM Apr 30, 2024Observed: 4354.28 ft at 2:00PM Apr 30, 2024Observed: 4354.29 ft at 2:15PM Apr 30, 2024Observed: 4354.3 ft at 2:30PM Apr 30, 2024Observed: 4354.3 ft at 2:45PM Apr 30, 2024Observed: 4354.29 ft at 3:00PM Apr 30, 2024Observed: 4354.29 ft at 3:15PM Apr 30, 2024Observed: 4354.29 ft at 3:30PM Apr 30, 2024Observed: 4354.3 ft at 3:45PM Apr 30, 2024Observed: 4354.29 ft at 4:00PM Apr 30, 2024Observed: 4354.3 ft at 4:15PM Apr 30, 2024Observed: 4354.3 ft at 4:30PM Apr 30, 2024Observed: 4354.31 ft at 4:45PM Apr 30, 2024Observed: 4354.3 ft at 5:00PM Apr 30, 2024Observed: 4354.3 ft at 5:15PM Apr 30, 2024Observed: 4354.3 ft at 5:30PM Apr 30, 2024Observed: 4354.3 ft at 5:45PM Apr 30, 2024Observed: 4354.31 ft at 6:00PM Apr 30, 2024Observed: 4354.31 ft at 6:15PM Apr 30, 2024Observed: 4354.33 ft at 6:30PM Apr 30, 2024Observed: 4354.34 ft at 6:45PM Apr 30, 2024Observed: 4354.33 ft at 7:00PM Apr 30, 2024Observed: 4354.31 ft at 7:15PM Apr 30, 2024Observed: 4354.31 ft at 7:30PM Apr 30, 2024Observed: 4354.31 ft at 7:45PM Apr 30, 2024Observed: 4354.31 ft at 8:00PM Apr 30, 2024Observed: 4354.31 ft at 8:15PM Apr 30, 2024Observed: 4354.31 ft at 8:30PM Apr 30, 2024Observed: 4354.31 ft at 8:45PM Apr 30, 2024Observed: 4354.3 ft at 9:00PM Apr 30, 2024Observed: 4354.31 ft at 9:15PM Apr 30, 2024Observed: 4354.31 ft at 9:30PM Apr 30, 2024Observed: 4354.31 ft at 9:45PM Apr 30, 2024Observed: 4354.31 ft at 10:00PM Apr 30, 2024Observed: 4354.3 ft at 10:15PM Apr 30, 2024Observed: 4354.29 ft at 10:30PM Apr 30, 2024Observed: 4354.28 ft at 10:45PM Apr 30, 2024Observed: 4354.29 ft at 11:00PM Apr 30, 2024Observed: 4354.3 ft at 11:15PM Apr 30, 2024Observed: 4354.31 ft at 11:30PM Apr 30, 2024Observed: 4354.3 ft at 11:45PM Apr 30, 2024Observed: 4354.28 ft at 12:00AM May 01, 2024Observed: 4354.27 ft at 12:15AM May 01, 2024Observed: 4354.26 ft at 12:30AM May 01, 2024Observed: 4354.25 ft at 12:45AM May 01, 2024Observed: 4354.26 ft at 1:00AM May 01, 2024Observed: 4354.28 ft at 1:15AM May 01, 2024Observed: 4354.28 ft at 1:30AM May 01, 2024Observed: 4354.27 ft at 1:45AM May 01, 2024Observed: 4354.23 ft at 2:00AM May 01, 2024Observed: 4354.21 ft at 2:15AM May 01, 2024Observed: 4354.23 ft at 2:30AM May 01, 2024Observed: 4354.26 ft at 2:45AM May 01, 2024Observed: 4354.28 ft at 3:00AM May 01, 2024Observed: 4354.29 ft at 3:15AM May 01, 2024Observed: 4354.29 ft at 3:30AM May 01, 2024Observed: 4354.29 ft at 3:45AM May 01, 2024Observed: 4354.27 ft at 4:00AM May 01, 2024Observed: 4354.26 ft at 4:15AM May 01, 2024Observed: 4354.28 ft at 4:30AM May 01, 2024Observed: 4354.29 ft at 4:45AM May 01, 2024Observed: 4354.3 ft at 5:00AM May 01, 2024Observed: 4354.32 ft at 5:15AM May 01, 2024Observed: 4354.31 ft at 5:30AM May 01, 2024Observed: 4354.3 ft at 5:45AM May 01, 2024Observed: 4354.29 ft at 6:00AM May 01, 2024Observed: 4354.27 ft at 6:15AM May 01, 2024Observed: 4354.27 ft at 6:30AM May 01, 2024Observed: 4354.28 ft at 6:45AM May 01, 2024Observed: 4354.29 ft at 7:00AM May 01, 2024Observed: 4354.29 ft at 7:15AM May 01, 2024Observed: 4354.27 ft at 7:30AM May 01, 2024Observed: 4354.26 ft at 7:45AM May 01, 2024Observed: 4354.22 ft at 8:00AM May 01, 2024Observed: 4354.21 ft at 8:15AM May 01, 2024Observed: 4354.22 ft at 8:30AM May 01, 2024Observed: 4354.25 ft at 8:45AM May 01, 2024Observed: 4354.27 ft at 9:00AM May 01, 2024Observed: 4354.3 ft at 9:15AM May 01, 2024Observed: 4354.29 ft at 9:30AM May 01, 2024Observed: 4354.27 ft at 9:45AM May 01, 2024Observed: 4354.23 ft at 10:00AM May 01, 2024Observed: 4354.21 ft at 10:15AM May 01, 2024Observed: 4354.2 ft at 10:30AM May 01, 2024Observed: 4354.21 ft at 10:45AM May 01, 2024Observed: 4354.21 ft at 11:00AM May 01, 2024Observed: 4354.23 ft at 11:15AM May 01, 2024Observed: 4354.24 ft at 11:30AM May 01, 2024Observed: 4354.23 ft at 11:45AM May 01, 2024Observed: 4354.21 ft at 12:00PM May 01, 2024Observed: 4354.18 ft at 12:15PM May 01, 2024Observed: 4354.2 ft at 12:30PM May 01, 2024Observed: 4354.21 ft at 12:45PM May 01, 2024Observed: 4354.23 ft at 1:00PM May 01, 2024Observed: 4354.23 ft at 1:15PM May 01, 2024Observed: 4354.29 ft at 1:30PM May 01, 2024Observed: 4354.33 ft at 1:45PM May 01, 2024Observed: 4354.3 ft at 2:00PM May 01, 2024Observed: 4354.36 ft at 2:15PM May 01, 2024Highest Observation: 4354.39 ft at 2:30PM May 01, 2024Observed: 4354.28 ft at 2:45PM May 01, 2024Forecast: 4354.32 ft 6:00PM May 01, 2024Forecast: 4354.34 ft 12:00AM May 02, 2024Forecast: 4354.35 ft 6:00AM May 02, 2024Forecast: 4354.37 ft 12:00PM May 02, 2024Forecast: 4354.38 ft 6:00PM May 02, 2024Forecast: 4354.39 ft 12:00AM May 03, 2024Forecast: 4354.41 ft 6:00AM May 03, 2024Forecast: 4354.42 ft 12:00PM May 03, 2024Forecast: 4354.43 ft 6:00PM May 03, 2024Forecast: 4354.43 ft 12:00AM May 04, 2024Forecast: 4354.44 ft 6:00AM May 04, 2024Highest Forecast: 4354.45 ft 12:00PM May 04, 2024Highest Forecast: 4354.45 ft 6:00PM May 04, 2024Highest Forecast: 4354.45 ft 12:00AM May 05, 2024Highest Forecast: 4354.45 ft 6:00AM May 05, 2024Highest Forecast: 4354.45 ft 12:00PM May 05, 2024Highest Forecast: 4354.45 ft 6:00PM May 05, 2024Highest Forecast: 4354.45 ft 12:00AM May 06, 2024Highest Forecast: 4354.45 ft 6:00AM May 06, 2024Forecast: 4354.44 ft 12:00PM May 06, 2024Forecast: 4354.44 ft 6:00PM May 06, 2024Forecast: 4354.44 ft 12:00AM May 07, 2024Forecast: 4354.43 ft 6:00AM May 07, 2024Forecast: 4354.43 ft 12:00PM May 07, 2024Forecast: 4354.42 ft 6:00PM May 07, 2024Forecast: 4354.42 ft 12:00AM May 08, 2024Forecast: 4354.41 ft 6:00AM May 08, 2024Forecast: 4354.41 ft 12:00PM May 08, 2024AFRI1(plotting HPIRG) Graph Created (3:03PM May 1, 2024)ObservedForecast (issued 10:25AM May 1)Latest observed value: 4354.28 ft at 2:45 PM MDT 1-May-2024.
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Eastern Idaho Reservoirs at American Falls are issued routinely year-round.

Vertical datum height surveyed by the USGS

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Neeley
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 4354.55
Low Stage (in feet): -9999

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 4,295.60 ft on 09/29/1977
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.
About This Location Collapse

Latitude: 42.778890° N, Longitude: 112.876940° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 4300.0 ft Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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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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