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 Pocatello, ID

Northwest River Forecast Center

Hydrograph

River at a Glance

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NOTE: Forecasts for the Snake River at Blackfoot are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 13 Moderate Flood Stage: 11.5 Flood Stage: 10.5 Action Stage: 9.5 Low Stage (in feet): -9999 Historic Crests (1) 13.55 ft on 06/17/1997 (2) 12.04 ft on 05/28/2011 (3) 11.26 ft on 06/16/2017 (4) 10.80 ft on 06/04/2018 (5) 10.74 ft on 06/06/1999 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 6.83 ft on 09/13/2022 (2) 7.52 ft on 08/05/2021 (3) 8.78 ft on 07/01/2020 (4) 9.90 ft on 04/28/2019 (5) 10.80 ft on 06/04/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 0.91 ft on 04/29/1992

Zoom Level:16 Legend FEMA Layer 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

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13.5	Inundation of roads and parking lots will occur in the commercial area near the intersection of U.S. Route 26 and Interstate 15. Water is at least 1 foot above the loading docks at the Ridleys Plaza. Significant flooding of farmland and roads near the river is likely. Major flooding could occur in the Jensen's Grove area that could impact Walmart.
13	Major flooding will occur throughout Bingham County. Major damage will occur on farm ground and water could top over the top of the Highway 26 bridge at Interstate 15.
12.6	Major flooding will occur in the Rose area at the Rose Ponds along Interstate 15, and in the Riverton and Schrader Island area. At 12.0 feet, the water will come over the top of the levee at Rose Ponds.
11.5	Lowland flooding will occur. Flooding is possible along US Highway 26 beneath the Interstate 15 underpass.
11	Minor flooding will occur in the Riverton area and in the Watson slough area.
10.5	Minor lowland flooding will occur along sections of the river from Rose to Blackfoot and downstream from Blackfoot. Water may seep into Jensens Grove.
9.5	Minor flooding will occur near Rose. Minor lowland flooding is possible along the river downstream from Blackfoot.
Photos (1) SNAI1_googleearth (2) SNAI1_map (3) SNAI1_SnakeBlackfoot_gage (4) SNAI1_SnakeBlackfoot_gage2 (5) SNAI1_looking_downstream (6) SNAI1_looking_downstream_from_bridge

About This Location

Latitude: 43.197283° N, Longitude: 112.369297° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 10.5 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other 4490 ft 4500 ft   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Blackfoot

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations Grassy Lake Dam Upper Snake Teacups Bear Basin Teacups

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management NWRFC CBRFC ID NRCS Snow Survey NOHRSC Snow Information USGS Current Stream Conditions USGS Water Watch

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 Pocatello Weather Forecast Office 1945 Beechcraft Ave Pocatello, ID 83204 (208) 232-9306 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:28 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities