Skip Navigation Link weather.gov  
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 Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Southern Idaho Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 

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.



Hydrograph River at a Glance Download
Snake River near Shelley Stage (ft)Flow (cfs)Observed: 6.2 ft at 7:00PM Sep 29, 2023Observed: 6.18 ft at 7:15PM Sep 29, 2023Observed: 6.16 ft at 7:30PM Sep 29, 2023Observed: 6.16 ft at 7:45PM Sep 29, 2023Observed: 6.16 ft at 8:00PM Sep 29, 2023Observed: 6.15 ft at 8:15PM Sep 29, 2023Observed: 6.16 ft at 8:30PM Sep 29, 2023Observed: 6.16 ft at 8:45PM Sep 29, 2023Observed: 6.15 ft at 9:00PM Sep 29, 2023Observed: 6.15 ft at 9:15PM Sep 29, 2023Observed: 6.17 ft at 9:30PM Sep 29, 2023Observed: 6.17 ft at 9:45PM Sep 29, 2023Observed: 6.18 ft at 10:00PM Sep 29, 2023Observed: 6.18 ft at 10:15PM Sep 29, 2023Observed: 6.17 ft at 10:30PM Sep 29, 2023Observed: 6.16 ft at 10:45PM Sep 29, 2023Observed: 6.15 ft at 11:00PM Sep 29, 2023Observed: 6.15 ft at 11:15PM Sep 29, 2023Observed: 6.19 ft at 11:30PM Sep 29, 2023Observed: 6.14 ft at 11:45PM Sep 29, 2023Observed: 6.15 ft at 12:00AM Sep 30, 2023Observed: 6.16 ft at 12:15AM Sep 30, 2023Observed: 6.15 ft at 12:30AM Sep 30, 2023Observed: 6.14 ft at 12:45AM Sep 30, 2023Observed: 6.14 ft at 1:00AM Sep 30, 2023Observed: 6.14 ft at 1:15AM Sep 30, 2023Observed: 6.14 ft at 1:30AM Sep 30, 2023Observed: 6.15 ft at 1:45AM Sep 30, 2023Observed: 6.17 ft at 2:00AM Sep 30, 2023Observed: 6.16 ft at 2:15AM Sep 30, 2023Observed: 6.16 ft at 2:30AM Sep 30, 2023Observed: 6.15 ft at 2:45AM Sep 30, 2023Observed: 6.16 ft at 3:00AM Sep 30, 2023Observed: 6.16 ft at 3:15AM Sep 30, 2023Observed: 6.16 ft at 3:30AM Sep 30, 2023Observed: 6.16 ft at 3:45AM Sep 30, 2023Observed: 6.16 ft at 4:00AM Sep 30, 2023Observed: 6.16 ft at 4:15AM Sep 30, 2023Observed: 6.16 ft at 4:30AM Sep 30, 2023Observed: 6.16 ft at 4:45AM Sep 30, 2023Observed: 6.15 ft at 5:00AM Sep 30, 2023Observed: 6.16 ft at 5:15AM Sep 30, 2023Observed: 6.16 ft at 5:30AM Sep 30, 2023Observed: 6.18 ft at 5:45AM Sep 30, 2023Observed: 6.17 ft at 6:00AM Sep 30, 2023Observed: 6.19 ft at 6:15AM Sep 30, 2023Observed: 6.19 ft at 6:30AM Sep 30, 2023Observed: 6.19 ft at 6:45AM Sep 30, 2023Observed: 6.19 ft at 7:00AM Sep 30, 2023Observed: 6.2 ft at 7:15AM Sep 30, 2023Observed: 6.16 ft at 7:30AM Sep 30, 2023Observed: 6.17 ft at 7:45AM Sep 30, 2023Observed: 6.12 ft at 8:00AM Sep 30, 2023Observed: 6.12 ft at 8:15AM Sep 30, 2023Observed: 6.13 ft at 8:30AM Sep 30, 2023Observed: 6.12 ft at 8:45AM Sep 30, 2023Observed: 6.1 ft at 9:00AM Sep 30, 2023Observed: 6.09 ft at 9:15AM Sep 30, 2023Observed: 6.08 ft at 9:30AM Sep 30, 2023Observed: 6.07 ft at 9:45AM Sep 30, 2023Observed: 6.1 ft at 10:00AM Sep 30, 2023Observed: 6.09 ft at 10:15AM Sep 30, 2023Observed: 6.06 ft at 10:30AM Sep 30, 2023Observed: 6.07 ft at 10:45AM Sep 30, 2023Observed: 6.06 ft at 11:00AM Sep 30, 2023Observed: 6.07 ft at 11:15AM Sep 30, 2023Observed: 6.07 ft at 11:30AM Sep 30, 2023Observed: 6.07 ft at 11:45AM Sep 30, 2023Observed: 6.06 ft at 12:00PM Sep 30, 2023Observed: 6.07 ft at 12:15PM Sep 30, 2023Observed: 6.07 ft at 12:30PM Sep 30, 2023Observed: 6.08 ft at 12:45PM Sep 30, 2023Observed: 6.08 ft at 1:00PM Sep 30, 2023Observed: 6.07 ft at 1:15PM Sep 30, 2023Observed: 6.05 ft at 1:30PM Sep 30, 2023Observed: 6.06 ft at 1:45PM Sep 30, 2023Observed: 6.08 ft at 2:00PM Sep 30, 2023Observed: 6.1 ft at 2:15PM Sep 30, 2023Observed: 6.11 ft at 2:30PM Sep 30, 2023Observed: 6.13 ft at 2:45PM Sep 30, 2023Observed: 6.14 ft at 3:00PM Sep 30, 2023Observed: 6.16 ft at 3:15PM Sep 30, 2023Observed: 6.15 ft at 3:30PM Sep 30, 2023Observed: 6.16 ft at 3:45PM Sep 30, 2023Observed: 6.14 ft at 4:00PM Sep 30, 2023Observed: 6.14 ft at 4:15PM Sep 30, 2023Observed: 6.15 ft at 4:30PM Sep 30, 2023Observed: 6.15 ft at 4:45PM Sep 30, 2023Observed: 6.15 ft at 5:00PM Sep 30, 2023Observed: 6.15 ft at 5:15PM Sep 30, 2023Observed: 6.16 ft at 5:30PM Sep 30, 2023Observed: 6.17 ft at 5:45PM Sep 30, 2023Observed: 6.17 ft at 6:00PM Sep 30, 2023Observed: 6.17 ft at 6:15PM Sep 30, 2023Observed: 6.15 ft at 6:30PM Sep 30, 2023Observed: 6.14 ft at 6:45PM Sep 30, 2023Observed: 6.15 ft at 7:00PM Sep 30, 2023Observed: 6.16 ft at 7:15PM Sep 30, 2023Observed: 6.14 ft at 7:30PM Sep 30, 2023Observed: 6.14 ft at 7:45PM Sep 30, 2023Observed: 6.15 ft at 8:00PM Sep 30, 2023Observed: 6.14 ft at 8:15PM Sep 30, 2023Observed: 6.14 ft at 8:30PM Sep 30, 2023Observed: 6.14 ft at 8:45PM Sep 30, 2023Observed: 6.13 ft at 9:00PM Sep 30, 2023Observed: 6.13 ft at 9:15PM Sep 30, 2023Observed: 6.13 ft at 9:30PM Sep 30, 2023Observed: 6.15 ft at 9:45PM Sep 30, 2023Observed: 6.15 ft at 10:00PM Sep 30, 2023Observed: 6.14 ft at 10:15PM Sep 30, 2023Observed: 6.16 ft at 10:30PM Sep 30, 2023Observed: 6.16 ft at 10:45PM Sep 30, 2023Observed: 6.17 ft at 11:00PM Sep 30, 2023Observed: 6.19 ft at 11:15PM Sep 30, 2023Observed: 6.2 ft at 11:30PM Sep 30, 2023Observed: 6.18 ft at 11:45PM Sep 30, 2023Observed: 6.18 ft at 12:00AM Oct 01, 2023Observed: 6.17 ft at 12:15AM Oct 01, 2023Observed: 6.18 ft at 12:30AM Oct 01, 2023Observed: 6.19 ft at 12:45AM Oct 01, 2023Observed: 6.21 ft at 1:00AM Oct 01, 2023Observed: 6.2 ft at 1:15AM Oct 01, 2023Observed: 6.21 ft at 1:30AM Oct 01, 2023Observed: 6.2 ft at 1:45AM Oct 01, 2023Observed: 6.21 ft at 2:00AM Oct 01, 2023Observed: 6.2 ft at 2:15AM Oct 01, 2023Observed: 6.21 ft at 2:30AM Oct 01, 2023Observed: 6.2 ft at 2:45AM Oct 01, 2023Observed: 6.2 ft at 3:00AM Oct 01, 2023Observed: 6.2 ft at 3:15AM Oct 01, 2023Observed: 6.21 ft at 3:30AM Oct 01, 2023Observed: 6.21 ft at 3:45AM Oct 01, 2023Observed: 6.22 ft at 4:00AM Oct 01, 2023Observed: 6.21 ft at 4:15AM Oct 01, 2023Observed: 6.2 ft at 4:30AM Oct 01, 2023Observed: 6.2 ft at 4:45AM Oct 01, 2023Observed: 6.2 ft at 5:00AM Oct 01, 2023Observed: 6.2 ft at 5:15AM Oct 01, 2023Observed: 6.2 ft at 5:30AM Oct 01, 2023Observed: 6.21 ft at 5:45AM Oct 01, 2023Observed: 6.2 ft at 6:00AM Oct 01, 2023Observed: 6.2 ft at 6:15AM Oct 01, 2023Observed: 6.2 ft at 6:30AM Oct 01, 2023Observed: 6.21 ft at 6:45AM Oct 01, 2023Observed: 6.21 ft at 7:00AM Oct 01, 2023Observed: 6.21 ft at 7:15AM Oct 01, 2023Observed: 6.21 ft at 7:30AM Oct 01, 2023Observed: 6.19 ft at 7:45AM Oct 01, 2023Observed: 6.18 ft at 8:00AM Oct 01, 2023Observed: 6.16 ft at 8:15AM Oct 01, 2023Observed: 6.16 ft at 8:30AM Oct 01, 2023Observed: 6.15 ft at 8:45AM Oct 01, 2023Observed: 6.13 ft at 9:00AM Oct 01, 2023Observed: 6.13 ft at 9:15AM Oct 01, 2023Observed: 6.15 ft at 9:30AM Oct 01, 2023Observed: 6.14 ft at 9:45AM Oct 01, 2023Observed: 6.14 ft at 10:00AM Oct 01, 2023Observed: 6.14 ft at 10:15AM Oct 01, 2023Observed: 6.15 ft at 10:30AM Oct 01, 2023Observed: 6.12 ft at 10:45AM Oct 01, 2023Observed: 6.13 ft at 11:00AM Oct 01, 2023Observed: 6.14 ft at 11:15AM Oct 01, 2023Observed: 6.14 ft at 11:30AM Oct 01, 2023Observed: 6.14 ft at 11:45AM Oct 01, 2023Observed: 6.14 ft at 12:00PM Oct 01, 2023Observed: 6.14 ft at 12:15PM Oct 01, 2023Observed: 6.15 ft at 12:30PM Oct 01, 2023Observed: 6.16 ft at 12:45PM Oct 01, 2023Observed: 6.15 ft at 1:00PM Oct 01, 2023Observed: 6.14 ft at 1:15PM Oct 01, 2023Observed: 6.15 ft at 1:30PM Oct 01, 2023Observed: 6.15 ft at 1:45PM Oct 01, 2023Observed: 6.13 ft at 2:00PM Oct 01, 2023Observed: 6.14 ft at 2:15PM Oct 01, 2023Observed: 6.14 ft at 2:30PM Oct 01, 2023Observed: 6.16 ft at 2:45PM Oct 01, 2023Observed: 6.17 ft at 3:00PM Oct 01, 2023Observed: 6.17 ft at 3:15PM Oct 01, 2023Observed: 6.17 ft at 3:30PM Oct 01, 2023Observed: 6.18 ft at 3:45PM Oct 01, 2023Observed: 6.17 ft at 4:00PM Oct 01, 2023Observed: 6.17 ft at 4:15PM Oct 01, 2023Observed: 6.16 ft at 4:30PM Oct 01, 2023Observed: 6.17 ft at 4:45PM Oct 01, 2023Observed: 6.16 ft at 5:00PM Oct 01, 2023Observed: 6.16 ft at 5:15PM Oct 01, 2023Observed: 6.18 ft at 5:30PM Oct 01, 2023Observed: 6.18 ft at 5:45PM Oct 01, 2023Observed: 6.16 ft at 6:00PM Oct 01, 2023Observed: 6.18 ft at 6:15PM Oct 01, 2023Observed: 6.16 ft at 6:30PM Oct 01, 2023Observed: 6.14 ft at 6:45PM Oct 01, 2023Observed: 6.13 ft at 7:00PM Oct 01, 2023Observed: 6.14 ft at 7:15PM Oct 01, 2023Observed: 6.14 ft at 7:30PM Oct 01, 2023Observed: 6.14 ft at 7:45PM Oct 01, 2023Observed: 6.16 ft at 8:00PM Oct 01, 2023Observed: 6.17 ft at 8:15PM Oct 01, 2023Observed: 6.17 ft at 8:30PM Oct 01, 2023Observed: 6.17 ft at 8:45PM Oct 01, 2023Observed: 6.16 ft at 9:00PM Oct 01, 2023Observed: 6.17 ft at 9:15PM Oct 01, 2023Observed: 6.17 ft at 9:30PM Oct 01, 2023Observed: 6.17 ft at 9:45PM Oct 01, 2023Observed: 6.17 ft at 10:00PM Oct 01, 2023Observed: 6.16 ft at 10:15PM Oct 01, 2023Observed: 6.16 ft at 10:30PM Oct 01, 2023Observed: 6.15 ft at 10:45PM Oct 01, 2023Observed: 6.15 ft at 11:00PM Oct 01, 2023Observed: 6.16 ft at 11:15PM Oct 01, 2023Observed: 6.16 ft at 11:30PM Oct 01, 2023Observed: 6.16 ft at 11:45PM Oct 01, 2023Observed: 6.15 ft at 12:00AM Oct 02, 2023Observed: 6.16 ft at 12:15AM Oct 02, 2023Observed: 6.17 ft at 12:30AM Oct 02, 2023Observed: 6.15 ft at 12:45AM Oct 02, 2023Observed: 6.16 ft at 1:00AM Oct 02, 2023Observed: 6.18 ft at 1:15AM Oct 02, 2023Observed: 6.17 ft at 1:30AM Oct 02, 2023Observed: 6.17 ft at 1:45AM Oct 02, 2023Observed: 6.16 ft at 2:00AM Oct 02, 2023Observed: 6.16 ft at 2:15AM Oct 02, 2023Observed: 6.15 ft at 2:30AM Oct 02, 2023Observed: 6.15 ft at 2:45AM Oct 02, 2023Observed: 6.16 ft at 3:00AM Oct 02, 2023Observed: 6.17 ft at 3:15AM Oct 02, 2023Observed: 6.18 ft at 3:30AM Oct 02, 2023Observed: 6.17 ft at 3:45AM Oct 02, 2023Observed: 6.17 ft at 4:00AM Oct 02, 2023Observed: 6.19 ft at 4:15AM Oct 02, 2023Observed: 6.19 ft at 4:30AM Oct 02, 2023Observed: 6.19 ft at 4:45AM Oct 02, 2023Observed: 6.19 ft at 5:00AM Oct 02, 2023Observed: 6.19 ft at 5:15AM Oct 02, 2023Observed: 6.19 ft at 5:30AM Oct 02, 2023Observed: 6.22 ft at 5:45AM Oct 02, 2023Observed: 6.21 ft at 6:00AM Oct 02, 2023Observed: 6.22 ft at 6:15AM Oct 02, 2023Observed: 6.21 ft at 6:30AM Oct 02, 2023Observed: 6.21 ft at 6:45AM Oct 02, 2023Observed: 6.2 ft at 7:00AM Oct 02, 2023Observed: 6.2 ft at 7:15AM Oct 02, 2023Observed: 6.2 ft at 7:30AM Oct 02, 2023Observed: 6.19 ft at 7:45AM Oct 02, 2023Observed: 6.2 ft at 8:00AM Oct 02, 2023Observed: 6.21 ft at 8:15AM Oct 02, 2023Observed: 6.21 ft at 8:30AM Oct 02, 2023Observed: 6.19 ft at 8:45AM Oct 02, 2023Observed: 6.17 ft at 9:00AM Oct 02, 2023Observed: 6.16 ft at 9:15AM Oct 02, 2023Observed: 6.17 ft at 9:30AM Oct 02, 2023Observed: 6.19 ft at 9:45AM Oct 02, 2023Observed: 6.18 ft at 10:00AM Oct 02, 2023Observed: 6.19 ft at 10:15AM Oct 02, 2023Observed: 6.19 ft at 10:30AM Oct 02, 2023Observed: 6.2 ft at 10:45AM Oct 02, 2023Observed: 6.19 ft at 11:00AM Oct 02, 2023Observed: 6.18 ft at 11:15AM Oct 02, 2023Observed: 6.19 ft at 11:30AM Oct 02, 2023Observed: 6.21 ft at 11:45AM Oct 02, 2023Observed: 6.21 ft at 12:00PM Oct 02, 2023Observed: 6.22 ft at 12:15PM Oct 02, 2023Observed: 6.22 ft at 12:30PM Oct 02, 2023Observed: 6.25 ft at 12:45PM Oct 02, 2023Observed: 6.24 ft at 1:00PM Oct 02, 2023Observed: 6.26 ft at 1:15PM Oct 02, 2023Observed: 6.26 ft at 1:30PM Oct 02, 2023Observed: 6.28 ft at 1:45PM Oct 02, 2023Observed: 6.28 ft at 2:00PM Oct 02, 2023Observed: 6.26 ft at 2:15PM Oct 02, 2023Observed: 6.25 ft at 2:30PM Oct 02, 2023Observed: 6.23 ft at 2:45PM Oct 02, 2023Observed: 6.26 ft at 3:00PM Oct 02, 2023Observed: 6.25 ft at 3:15PM Oct 02, 2023Observed: 6.27 ft at 3:30PM Oct 02, 2023Observed: 6.28 ft at 3:45PM Oct 02, 2023Observed: 6.28 ft at 4:00PM Oct 02, 2023Observed: 6.28 ft at 4:15PM Oct 02, 2023Observed: 6.27 ft at 4:30PM Oct 02, 2023Observed: 6.27 ft at 4:45PM Oct 02, 2023Observed: 6.27 ft at 5:00PM Oct 02, 2023Observed: 6.28 ft at 5:15PM Oct 02, 2023Highest Observation: 6.29 ft at 5:30PM Oct 02, 2023Highest Observation: 6.29 ft at 5:45PM Oct 02, 2023Observed: 6.28 ft at 6:00PM Oct 02, 2023Observed: 6.27 ft at 6:15PM Oct 02, 2023Forecast: 6.23 ft 12:00AM Oct 03, 2023Highest Forecast: 6.24 ft 6:00AM Oct 03, 2023Forecast: 6.23 ft 12:00PM Oct 03, 2023Forecast: 6.18 ft 6:00PM Oct 03, 2023Forecast: 6.1 ft 12:00AM Oct 04, 2023Forecast: 6.04 ft 6:00AM Oct 04, 2023Forecast: 6.02 ft 12:00PM Oct 04, 2023Forecast: 6.03 ft 6:00PM Oct 04, 2023Forecast: 6.07 ft 12:00AM Oct 05, 2023Forecast: 6.11 ft 6:00AM Oct 05, 2023Forecast: 6.12 ft 12:00PM Oct 05, 2023Forecast: 6.12 ft 6:00PM Oct 05, 2023Forecast: 6.13 ft 12:00AM Oct 06, 2023Forecast: 6.14 ft 6:00AM Oct 06, 2023Forecast: 6.12 ft 12:00PM Oct 06, 2023Forecast: 6.1 ft 6:00PM Oct 06, 2023Forecast: 6.09 ft 12:00AM Oct 07, 2023Forecast: 6.08 ft 6:00AM Oct 07, 2023Forecast: 6.06 ft 12:00PM Oct 07, 2023Forecast: 6.04 ft 6:00PM Oct 07, 2023Forecast: 6.04 ft 12:00AM Oct 08, 2023Forecast: 6.04 ft 6:00AM Oct 08, 2023Forecast: 6.03 ft 12:00PM Oct 08, 2023Forecast: 6.01 ft 6:00PM Oct 08, 2023Forecast: 6.01 ft 12:00AM Oct 09, 2023Forecast: 6.02 ft 6:00AM Oct 09, 2023Forecast: 6.01 ft 12:00PM Oct 09, 2023Forecast: 5.99 ft 6:00PM Oct 09, 2023USGS--Water Resources of the United StatesSHYI1(plotting HGIRG) Graph Created (6:48PM Oct 2, 2023)ObservedForecast (issued 3:43PM Oct 2)Latest observed value: 6.27 ft at 6:15 PM MDT 2-Oct-2023. 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: 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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:28 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities