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
    Pocatello Radar
    Salt Lake City Radar
    Boise 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
 
Hydrograph River at a Glance Download
Eastern Idaho Reservoirs at Mackay Dam Pool (ft)Observed: 30.19 ft at 6:00AM Oct 26, 2020Observed: 30.19 ft at 6:15AM Oct 26, 2020Observed: 30.19 ft at 6:30AM Oct 26, 2020Observed: 30.2 ft at 6:45AM Oct 26, 2020Observed: 30.2 ft at 7:00AM Oct 26, 2020Observed: 30.21 ft at 7:15AM Oct 26, 2020Observed: 30.21 ft at 7:30AM Oct 26, 2020Observed: 30.21 ft at 7:45AM Oct 26, 2020Observed: 30.22 ft at 8:00AM Oct 26, 2020Observed: 30.22 ft at 8:15AM Oct 26, 2020Observed: 30.23 ft at 8:30AM Oct 26, 2020Observed: 30.23 ft at 8:45AM Oct 26, 2020Observed: 30.23 ft at 9:00AM Oct 26, 2020Observed: 30.24 ft at 9:15AM Oct 26, 2020Observed: 30.24 ft at 9:30AM Oct 26, 2020Observed: 30.25 ft at 9:45AM Oct 26, 2020Observed: 30.25 ft at 10:00AM Oct 26, 2020Observed: 30.25 ft at 10:15AM Oct 26, 2020Observed: 30.25 ft at 10:30AM Oct 26, 2020Observed: 30.26 ft at 10:45AM Oct 26, 2020Observed: 30.27 ft at 11:00AM Oct 26, 2020Observed: 30.27 ft at 11:15AM Oct 26, 2020Observed: 30.28 ft at 11:30AM Oct 26, 2020Observed: 30.28 ft at 11:45AM Oct 26, 2020Observed: 30.28 ft at 12:00PM Oct 26, 2020Observed: 30.29 ft at 12:15PM Oct 26, 2020Observed: 30.3 ft at 12:30PM Oct 26, 2020Observed: 30.3 ft at 12:45PM Oct 26, 2020Observed: 30.32 ft at 1:00PM Oct 26, 2020Observed: 30.31 ft at 1:15PM Oct 26, 2020Observed: 30.31 ft at 1:30PM Oct 26, 2020Observed: 30.33 ft at 1:45PM Oct 26, 2020Observed: 30.34 ft at 2:00PM Oct 26, 2020Observed: 30.34 ft at 2:15PM Oct 26, 2020Observed: 30.35 ft at 2:30PM Oct 26, 2020Observed: 30.34 ft at 2:45PM Oct 26, 2020Observed: 30.35 ft at 3:00PM Oct 26, 2020Observed: 30.35 ft at 3:15PM Oct 26, 2020Observed: 30.36 ft at 3:30PM Oct 26, 2020Observed: 30.38 ft at 3:45PM Oct 26, 2020Observed: 30.37 ft at 4:00PM Oct 26, 2020Observed: 30.36 ft at 4:15PM Oct 26, 2020Observed: 30.36 ft at 4:30PM Oct 26, 2020Observed: 30.36 ft at 4:45PM Oct 26, 2020Observed: 30.38 ft at 5:00PM Oct 26, 2020Observed: 30.38 ft at 5:15PM Oct 26, 2020Observed: 30.38 ft at 5:30PM Oct 26, 2020Observed: 30.38 ft at 5:45PM Oct 26, 2020Observed: 30.39 ft at 6:00PM Oct 26, 2020Observed: 30.39 ft at 6:15PM Oct 26, 2020Observed: 30.39 ft at 6:30PM Oct 26, 2020Observed: 30.4 ft at 6:45PM Oct 26, 2020Observed: 30.39 ft at 7:00PM Oct 26, 2020Observed: 30.4 ft at 7:15PM Oct 26, 2020Observed: 30.4 ft at 7:30PM Oct 26, 2020Observed: 30.41 ft at 7:45PM Oct 26, 2020Observed: 30.41 ft at 8:00PM Oct 26, 2020Observed: 30.41 ft at 8:15PM Oct 26, 2020Observed: 30.42 ft at 8:30PM Oct 26, 2020Observed: 30.43 ft at 8:45PM Oct 26, 2020Observed: 30.43 ft at 9:00PM Oct 26, 2020Observed: 30.43 ft at 9:15PM Oct 26, 2020Observed: 30.44 ft at 9:30PM Oct 26, 2020Observed: 30.44 ft at 9:45PM Oct 26, 2020Observed: 30.45 ft at 10:00PM Oct 26, 2020Observed: 30.45 ft at 10:15PM Oct 26, 2020Observed: 30.46 ft at 10:30PM Oct 26, 2020Observed: 30.46 ft at 10:45PM Oct 26, 2020Observed: 30.46 ft at 11:00PM Oct 26, 2020Observed: 30.47 ft at 11:15PM Oct 26, 2020Observed: 30.47 ft at 11:30PM Oct 26, 2020Observed: 30.48 ft at 11:45PM Oct 26, 2020Observed: 30.48 ft at 12:00AM Oct 27, 2020Observed: 30.49 ft at 12:15AM Oct 27, 2020Observed: 30.49 ft at 12:30AM Oct 27, 2020Observed: 30.5 ft at 12:45AM Oct 27, 2020Observed: 30.5 ft at 1:00AM Oct 27, 2020Observed: 30.51 ft at 1:15AM Oct 27, 2020Observed: 30.51 ft at 1:30AM Oct 27, 2020Observed: 30.52 ft at 1:45AM Oct 27, 2020Observed: 30.53 ft at 2:00AM Oct 27, 2020Observed: 30.53 ft at 2:15AM Oct 27, 2020Observed: 30.54 ft at 2:30AM Oct 27, 2020Observed: 30.53 ft at 2:45AM Oct 27, 2020Observed: 30.53 ft at 3:00AM Oct 27, 2020Observed: 30.54 ft at 3:15AM Oct 27, 2020Observed: 30.54 ft at 3:30AM Oct 27, 2020Observed: 30.55 ft at 3:45AM Oct 27, 2020Observed: 30.55 ft at 4:00AM Oct 27, 2020Observed: 30.56 ft at 4:15AM Oct 27, 2020Observed: 30.56 ft at 4:30AM Oct 27, 2020Observed: 30.57 ft at 4:45AM Oct 27, 2020Observed: 30.57 ft at 5:00AM Oct 27, 2020Observed: 30.58 ft at 5:15AM Oct 27, 2020Observed: 30.58 ft at 5:30AM Oct 27, 2020Observed: 30.59 ft at 5:45AM Oct 27, 2020Observed: 30.59 ft at 6:00AM Oct 27, 2020Observed: 30.59 ft at 6:15AM Oct 27, 2020Observed: 30.6 ft at 6:30AM Oct 27, 2020Observed: 30.61 ft at 6:45AM Oct 27, 2020Observed: 30.61 ft at 7:00AM Oct 27, 2020Observed: 30.61 ft at 7:15AM Oct 27, 2020Observed: 30.61 ft at 7:30AM Oct 27, 2020Observed: 30.62 ft at 7:45AM Oct 27, 2020Observed: 30.62 ft at 8:00AM Oct 27, 2020Observed: 30.63 ft at 8:15AM Oct 27, 2020Observed: 30.63 ft at 8:30AM Oct 27, 2020Observed: 30.64 ft at 8:45AM Oct 27, 2020Observed: 30.65 ft at 9:00AM Oct 27, 2020Observed: 30.65 ft at 9:15AM Oct 27, 2020Observed: 30.65 ft at 9:30AM Oct 27, 2020Observed: 30.65 ft at 9:45AM Oct 27, 2020Observed: 30.66 ft at 10:00AM Oct 27, 2020Observed: 30.67 ft at 10:15AM Oct 27, 2020Observed: 30.67 ft at 10:30AM Oct 27, 2020Observed: 30.68 ft at 10:45AM Oct 27, 2020Observed: 30.68 ft at 11:00AM Oct 27, 2020Observed: 30.68 ft at 11:15AM Oct 27, 2020Observed: 30.69 ft at 11:30AM Oct 27, 2020Observed: 30.7 ft at 11:45AM Oct 27, 2020Observed: 30.7 ft at 12:00PM Oct 27, 2020Observed: 30.7 ft at 12:15PM Oct 27, 2020Observed: 30.7 ft at 12:30PM Oct 27, 2020Observed: 30.7 ft at 12:45PM Oct 27, 2020Observed: 30.71 ft at 1:00PM Oct 27, 2020Observed: 30.71 ft at 1:15PM Oct 27, 2020Observed: 30.72 ft at 1:30PM Oct 27, 2020Observed: 30.72 ft at 1:45PM Oct 27, 2020Observed: 30.72 ft at 2:00PM Oct 27, 2020Observed: 30.73 ft at 2:15PM Oct 27, 2020Observed: 30.73 ft at 2:30PM Oct 27, 2020Observed: 30.75 ft at 2:45PM Oct 27, 2020Observed: 30.74 ft at 3:00PM Oct 27, 2020Observed: 30.75 ft at 3:15PM Oct 27, 2020Observed: 30.76 ft at 3:30PM Oct 27, 2020Observed: 30.76 ft at 3:45PM Oct 27, 2020Observed: 30.76 ft at 4:00PM Oct 27, 2020Observed: 30.76 ft at 4:15PM Oct 27, 2020Observed: 30.76 ft at 4:30PM Oct 27, 2020Observed: 30.77 ft at 4:45PM Oct 27, 2020Observed: 30.79 ft at 5:00PM Oct 27, 2020Observed: 30.79 ft at 5:15PM Oct 27, 2020Observed: 30.79 ft at 5:30PM Oct 27, 2020Observed: 30.79 ft at 5:45PM Oct 27, 2020Observed: 30.78 ft at 6:00PM Oct 27, 2020Observed: 30.79 ft at 6:15PM Oct 27, 2020Observed: 30.79 ft at 6:30PM Oct 27, 2020Observed: 30.8 ft at 6:45PM Oct 27, 2020Observed: 30.8 ft at 7:00PM Oct 27, 2020Observed: 30.81 ft at 7:15PM Oct 27, 2020Observed: 30.81 ft at 7:30PM Oct 27, 2020Observed: 30.82 ft at 7:45PM Oct 27, 2020Observed: 30.82 ft at 8:00PM Oct 27, 2020Observed: 30.83 ft at 8:15PM Oct 27, 2020Observed: 30.84 ft at 8:30PM Oct 27, 2020Observed: 30.84 ft at 8:45PM Oct 27, 2020Observed: 30.85 ft at 9:00PM Oct 27, 2020Observed: 30.85 ft at 9:15PM Oct 27, 2020Observed: 30.85 ft at 9:30PM Oct 27, 2020Observed: 30.85 ft at 9:45PM Oct 27, 2020Observed: 30.86 ft at 10:00PM Oct 27, 2020Observed: 30.86 ft at 10:15PM Oct 27, 2020Observed: 30.87 ft at 10:30PM Oct 27, 2020Observed: 30.87 ft at 10:45PM Oct 27, 2020Observed: 30.88 ft at 11:00PM Oct 27, 2020Observed: 30.88 ft at 11:15PM Oct 27, 2020Observed: 30.88 ft at 11:30PM Oct 27, 2020Observed: 30.88 ft at 11:45PM Oct 27, 2020Observed: 30.89 ft at 12:00AM Oct 28, 2020Observed: 30.9 ft at 12:15AM Oct 28, 2020Observed: 30.9 ft at 12:30AM Oct 28, 2020Observed: 30.91 ft at 12:45AM Oct 28, 2020Observed: 30.91 ft at 1:00AM Oct 28, 2020Observed: 30.92 ft at 1:15AM Oct 28, 2020Observed: 30.92 ft at 1:30AM Oct 28, 2020Observed: 30.92 ft at 1:45AM Oct 28, 2020Observed: 30.93 ft at 2:00AM Oct 28, 2020Observed: 30.94 ft at 2:15AM Oct 28, 2020Observed: 30.94 ft at 2:30AM Oct 28, 2020Observed: 30.94 ft at 2:45AM Oct 28, 2020Observed: 30.95 ft at 3:00AM Oct 28, 2020Observed: 30.95 ft at 3:15AM Oct 28, 2020Observed: 30.95 ft at 3:30AM Oct 28, 2020Observed: 30.96 ft at 3:45AM Oct 28, 2020Observed: 30.96 ft at 4:00AM Oct 28, 2020Observed: 30.97 ft at 4:15AM Oct 28, 2020Observed: 30.97 ft at 4:30AM Oct 28, 2020Observed: 30.98 ft at 4:45AM Oct 28, 2020Observed: 30.98 ft at 5:00AM Oct 28, 2020Observed: 30.98 ft at 5:15AM Oct 28, 2020Observed: 30.98 ft at 5:30AM Oct 28, 2020Observed: 30.99 ft at 5:45AM Oct 28, 2020Observed: 30.99 ft at 6:00AM Oct 28, 2020Observed: 31 ft at 6:15AM Oct 28, 2020Observed: 31 ft at 6:30AM Oct 28, 2020Observed: 31.01 ft at 6:45AM Oct 28, 2020Observed: 31.01 ft at 7:00AM Oct 28, 2020Observed: 31.02 ft at 7:15AM Oct 28, 2020Observed: 31.03 ft at 7:30AM Oct 28, 2020Observed: 31.02 ft at 7:45AM Oct 28, 2020Observed: 31.03 ft at 8:00AM Oct 28, 2020Observed: 31.03 ft at 8:15AM Oct 28, 2020Observed: 31.04 ft at 8:30AM Oct 28, 2020Observed: 31.04 ft at 8:45AM Oct 28, 2020Observed: 31.04 ft at 9:00AM Oct 28, 2020Observed: 31.05 ft at 9:15AM Oct 28, 2020Observed: 31.05 ft at 9:30AM Oct 28, 2020Observed: 31.05 ft at 9:45AM Oct 28, 2020Observed: 31.06 ft at 10:00AM Oct 28, 2020Observed: 31.06 ft at 10:15AM Oct 28, 2020Observed: 31.07 ft at 10:30AM Oct 28, 2020Observed: 31.07 ft at 10:45AM Oct 28, 2020Observed: 31.08 ft at 11:00AM Oct 28, 2020Observed: 31.08 ft at 11:15AM Oct 28, 2020Observed: 31.08 ft at 11:30AM Oct 28, 2020Observed: 31.08 ft at 11:45AM Oct 28, 2020Observed: 31.09 ft at 12:00PM Oct 28, 2020Observed: 31.1 ft at 12:15PM Oct 28, 2020Observed: 31.11 ft at 12:30PM Oct 28, 2020Observed: 31.12 ft at 12:45PM Oct 28, 2020Observed: 31.11 ft at 1:00PM Oct 28, 2020Observed: 31.11 ft at 1:15PM Oct 28, 2020Observed: 31.12 ft at 1:30PM Oct 28, 2020Observed: 31.11 ft at 1:45PM Oct 28, 2020Observed: 31.12 ft at 2:00PM Oct 28, 2020Observed: 31.13 ft at 2:15PM Oct 28, 2020Observed: 31.14 ft at 2:30PM Oct 28, 2020Observed: 31.15 ft at 2:45PM Oct 28, 2020Observed: 31.15 ft at 3:00PM Oct 28, 2020Observed: 31.15 ft at 3:15PM Oct 28, 2020Observed: 31.16 ft at 3:30PM Oct 28, 2020Observed: 31.15 ft at 3:45PM Oct 28, 2020Observed: 31.16 ft at 4:00PM Oct 28, 2020Observed: 31.16 ft at 4:15PM Oct 28, 2020Observed: 31.17 ft at 4:30PM Oct 28, 2020Observed: 31.17 ft at 4:45PM Oct 28, 2020Observed: 31.17 ft at 5:00PM Oct 28, 2020Observed: 31.17 ft at 5:15PM Oct 28, 2020Observed: 31.18 ft at 5:30PM Oct 28, 2020Observed: 31.17 ft at 5:45PM Oct 28, 2020Observed: 31.17 ft at 6:00PM Oct 28, 2020Observed: 31.18 ft at 6:15PM Oct 28, 2020Observed: 31.18 ft at 6:30PM Oct 28, 2020Observed: 31.19 ft at 6:45PM Oct 28, 2020Observed: 31.19 ft at 7:00PM Oct 28, 2020Observed: 31.2 ft at 7:15PM Oct 28, 2020Observed: 31.2 ft at 7:30PM Oct 28, 2020Observed: 31.2 ft at 7:45PM Oct 28, 2020Observed: 31.21 ft at 8:00PM Oct 28, 2020Observed: 31.21 ft at 8:15PM Oct 28, 2020Observed: 31.22 ft at 8:30PM Oct 28, 2020Observed: 31.22 ft at 8:45PM Oct 28, 2020Observed: 31.23 ft at 9:00PM Oct 28, 2020Observed: 31.23 ft at 9:15PM Oct 28, 2020Observed: 31.23 ft at 9:30PM Oct 28, 2020Observed: 31.24 ft at 9:45PM Oct 28, 2020Observed: 31.24 ft at 10:00PM Oct 28, 2020Observed: 31.24 ft at 10:15PM Oct 28, 2020Observed: 31.25 ft at 10:30PM Oct 28, 2020Observed: 31.25 ft at 10:45PM Oct 28, 2020Observed: 31.26 ft at 11:00PM Oct 28, 2020Observed: 31.26 ft at 11:15PM Oct 28, 2020Observed: 31.26 ft at 11:30PM Oct 28, 2020Observed: 31.27 ft at 11:45PM Oct 28, 2020Observed: 31.27 ft at 12:00AM Oct 29, 2020Observed: 31.27 ft at 12:15AM Oct 29, 2020Observed: 31.28 ft at 12:30AM Oct 29, 2020Observed: 31.28 ft at 12:45AM Oct 29, 2020Observed: 31.29 ft at 1:00AM Oct 29, 2020Observed: 31.29 ft at 1:15AM Oct 29, 2020Observed: 31.3 ft at 1:30AM Oct 29, 2020Observed: 31.3 ft at 1:45AM Oct 29, 2020Observed: 31.3 ft at 2:00AM Oct 29, 2020Observed: 31.31 ft at 2:15AM Oct 29, 2020Observed: 31.31 ft at 2:30AM Oct 29, 2020Observed: 31.32 ft at 2:45AM Oct 29, 2020Observed: 31.32 ft at 3:00AM Oct 29, 2020Observed: 31.32 ft at 3:15AM Oct 29, 2020Observed: 31.33 ft at 3:30AM Oct 29, 2020Observed: 31.33 ft at 3:45AM Oct 29, 2020Observed: 31.33 ft at 4:00AM Oct 29, 2020Highest Observation: 31.34 ft at 4:15AM Oct 29, 2020Highest Observation: 31.34 ft at 4:30AM Oct 29, 2020Forecast: 31.39 ft 6:00AM Oct 29, 2020Forecast: 31.49 ft 12:00PM Oct 29, 2020Forecast: 31.6 ft 6:00PM Oct 29, 2020Forecast: 31.7 ft 12:00AM Oct 30, 2020Forecast: 31.8 ft 6:00AM Oct 30, 2020Forecast: 31.9 ft 12:00PM Oct 30, 2020Forecast: 32 ft 6:00PM Oct 30, 2020Forecast: 32.1 ft 12:00AM Oct 31, 2020Forecast: 32.21 ft 6:00AM Oct 31, 2020Forecast: 32.31 ft 12:00PM Oct 31, 2020Forecast: 32.41 ft 6:00PM Oct 31, 2020Forecast: 32.51 ft 12:00AM Nov 01, 2020Forecast: 32.61 ft 5:00AM Nov 01, 2020Forecast: 32.71 ft 11:00AM Nov 01, 2020Forecast: 32.82 ft 5:00PM Nov 01, 2020Forecast: 32.92 ft 11:00PM Nov 01, 2020Forecast: 33.02 ft 5:00AM Nov 02, 2020Forecast: 33.12 ft 11:00AM Nov 02, 2020Forecast: 33.22 ft 5:00PM Nov 02, 2020Forecast: 33.32 ft 11:00PM Nov 02, 2020Forecast: 33.43 ft 5:00AM Nov 03, 2020Forecast: 33.53 ft 11:00AM Nov 03, 2020Forecast: 33.63 ft 5:00PM Nov 03, 2020Forecast: 33.73 ft 11:00PM Nov 03, 2020Forecast: 33.83 ft 5:00AM Nov 04, 2020Forecast: 33.93 ft 11:00AM Nov 04, 2020Forecast: 34.03 ft 5:00PM Nov 04, 2020Highest Forecast: 34.13 ft 11:00PM Nov 04, 2020MACI1(plotting HPIRZ) Graph Created (5:48AM Oct 29, 2020)ObservedForecast (issued 3:49PM Oct 28)Latest observed value: 31.34 ft at 4:30 AM MDT 29-Oct-2020.
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the Eastern Idaho Reservoirs at Mackay Dam. Only observed stages are available for this point.
Return to Area Map
Upstream Gauge - at Howell Ranch Upstream Gauge Downstream Gauge Downstream Gauge - below Mackay Reservoir
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 65.7
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
Currently none available.
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
66.5 102 percent Full Maximum Level
65.7 100 percent Full
64.8 97 percent Full
64.2 95 percent Full
63.2 92 percent Full
61.5 90 percent Full
60.8 87 percent Full
About This Location Collapse

Latitude: 43.951670° N, Longitude: 113.674720° 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 6000.4 Not Available 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:
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: 1-Mar-2019 12:33 AM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities