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Hydrograph River at a Glance Download
Eastern Idaho Reservoirs at Mackay Dam Pool (ft)Highest Observation: 51.5 ft at 8:00PM Aug 02, 2020Highest Observation: 51.5 ft at 8:15PM Aug 02, 2020Highest Observation: 51.5 ft at 8:30PM Aug 02, 2020Highest Observation: 51.5 ft at 8:45PM Aug 02, 2020Highest Observation: 51.5 ft at 9:00PM Aug 02, 2020Observed: 51.49 ft at 9:15PM Aug 02, 2020Observed: 51.49 ft at 9:30PM Aug 02, 2020Observed: 51.48 ft at 9:45PM Aug 02, 2020Observed: 51.48 ft at 10:00PM Aug 02, 2020Observed: 51.47 ft at 10:15PM Aug 02, 2020Observed: 51.47 ft at 10:30PM Aug 02, 2020Observed: 51.46 ft at 10:45PM Aug 02, 2020Observed: 51.46 ft at 11:00PM Aug 02, 2020Observed: 51.46 ft at 11:15PM Aug 02, 2020Observed: 51.45 ft at 11:30PM Aug 02, 2020Observed: 51.46 ft at 11:45PM Aug 02, 2020Observed: 51.45 ft at 12:00AM Aug 03, 2020Observed: 51.45 ft at 12:15AM Aug 03, 2020Observed: 51.44 ft at 12:30AM Aug 03, 2020Observed: 51.44 ft at 12:45AM Aug 03, 2020Observed: 51.43 ft at 1:00AM Aug 03, 2020Observed: 51.44 ft at 1:15AM Aug 03, 2020Observed: 51.43 ft at 1:30AM Aug 03, 2020Observed: 51.43 ft at 1:45AM Aug 03, 2020Observed: 51.42 ft at 2:00AM Aug 03, 2020Observed: 51.42 ft at 2:15AM Aug 03, 2020Observed: 51.42 ft at 2:30AM Aug 03, 2020Observed: 51.41 ft at 2:45AM Aug 03, 2020Observed: 51.41 ft at 3:00AM Aug 03, 2020Observed: 51.41 ft at 3:15AM Aug 03, 2020Observed: 51.4 ft at 3:30AM Aug 03, 2020Observed: 51.4 ft at 3:45AM Aug 03, 2020Observed: 51.4 ft at 4:00AM Aug 03, 2020Observed: 51.39 ft at 4:15AM Aug 03, 2020Observed: 51.39 ft at 4:30AM Aug 03, 2020Observed: 51.39 ft at 4:45AM Aug 03, 2020Observed: 51.38 ft at 5:00AM Aug 03, 2020Observed: 51.38 ft at 5:15AM Aug 03, 2020Observed: 51.38 ft at 5:30AM Aug 03, 2020Observed: 51.37 ft at 5:45AM Aug 03, 2020Observed: 51.37 ft at 6:00AM Aug 03, 2020Observed: 51.37 ft at 6:15AM Aug 03, 2020Observed: 51.36 ft at 6:30AM Aug 03, 2020Observed: 51.36 ft at 6:45AM Aug 03, 2020Observed: 51.35 ft at 7:00AM Aug 03, 2020Observed: 51.35 ft at 7:15AM Aug 03, 2020Observed: 51.35 ft at 7:30AM Aug 03, 2020Observed: 51.34 ft at 7:45AM Aug 03, 2020Observed: 51.33 ft at 8:00AM Aug 03, 2020Observed: 51.34 ft at 8:15AM Aug 03, 2020Observed: 51.34 ft at 8:30AM Aug 03, 2020Observed: 51.33 ft at 8:45AM Aug 03, 2020Observed: 51.32 ft at 9:00AM Aug 03, 2020Observed: 51.33 ft at 9:15AM Aug 03, 2020Observed: 51.32 ft at 9:30AM Aug 03, 2020Observed: 51.31 ft at 9:45AM Aug 03, 2020Observed: 51.31 ft at 10:00AM Aug 03, 2020Observed: 51.31 ft at 10:15AM Aug 03, 2020Observed: 51.31 ft at 10:30AM Aug 03, 2020Observed: 51.3 ft at 10:45AM Aug 03, 2020Observed: 51.3 ft at 11:00AM Aug 03, 2020Observed: 51.3 ft at 11:15AM Aug 03, 2020Observed: 51.3 ft at 11:30AM Aug 03, 2020Observed: 51.3 ft at 11:45AM Aug 03, 2020Observed: 51.29 ft at 12:00PM Aug 03, 2020Observed: 51.29 ft at 12:15PM Aug 03, 2020Observed: 51.28 ft at 12:30PM Aug 03, 2020Observed: 51.28 ft at 12:45PM Aug 03, 2020Observed: 51.28 ft at 1:00PM Aug 03, 2020Observed: 51.27 ft at 1:15PM Aug 03, 2020Observed: 51.27 ft at 1:30PM Aug 03, 2020Observed: 51.27 ft at 1:45PM Aug 03, 2020Observed: 51.26 ft at 2:00PM Aug 03, 2020Observed: 51.25 ft at 2:15PM Aug 03, 2020Observed: 51.26 ft at 2:30PM Aug 03, 2020Observed: 51.25 ft at 2:45PM Aug 03, 2020Observed: 51.25 ft at 3:00PM Aug 03, 2020Observed: 51.24 ft at 3:15PM Aug 03, 2020Observed: 51.24 ft at 3:30PM Aug 03, 2020Observed: 51.24 ft at 3:45PM Aug 03, 2020Observed: 51.23 ft at 4:00PM Aug 03, 2020Observed: 51.23 ft at 4:15PM Aug 03, 2020Observed: 51.23 ft at 4:30PM Aug 03, 2020Observed: 51.23 ft at 4:45PM Aug 03, 2020Observed: 51.22 ft at 5:00PM Aug 03, 2020Observed: 51.22 ft at 5:15PM Aug 03, 2020Observed: 51.22 ft at 5:30PM Aug 03, 2020Observed: 51.22 ft at 5:45PM Aug 03, 2020Observed: 51.21 ft at 6:00PM Aug 03, 2020Observed: 51.21 ft at 6:15PM Aug 03, 2020Observed: 51.21 ft at 6:30PM Aug 03, 2020Observed: 51.21 ft at 6:45PM Aug 03, 2020Observed: 51.21 ft at 7:00PM Aug 03, 2020Observed: 51.21 ft at 7:15PM Aug 03, 2020Observed: 51.19 ft at 7:30PM Aug 03, 2020Observed: 51.19 ft at 7:45PM Aug 03, 2020Observed: 51.19 ft at 8:00PM Aug 03, 2020Observed: 51.18 ft at 8:15PM Aug 03, 2020Observed: 51.18 ft at 8:30PM Aug 03, 2020Observed: 51.18 ft at 8:45PM Aug 03, 2020Observed: 51.17 ft at 9:00PM Aug 03, 2020Observed: 51.16 ft at 9:15PM Aug 03, 2020Observed: 51.18 ft at 9:30PM Aug 03, 2020Observed: 51.16 ft at 9:45PM Aug 03, 2020Observed: 51.16 ft at 10:00PM Aug 03, 2020Observed: 51.15 ft at 10:15PM Aug 03, 2020Observed: 51.14 ft at 10:30PM Aug 03, 2020Observed: 51.14 ft at 10:45PM Aug 03, 2020Observed: 51.14 ft at 11:00PM Aug 03, 2020Observed: 51.13 ft at 11:15PM Aug 03, 2020Observed: 51.12 ft at 11:30PM Aug 03, 2020Observed: 51.12 ft at 11:45PM Aug 03, 2020Observed: 51.11 ft at 12:00AM Aug 04, 2020Observed: 51.11 ft at 12:15AM Aug 04, 2020Observed: 51.11 ft at 12:30AM Aug 04, 2020Observed: 51.1 ft at 12:45AM Aug 04, 2020Observed: 51.1 ft at 1:00AM Aug 04, 2020Observed: 51.09 ft at 1:15AM Aug 04, 2020Observed: 51.09 ft at 1:30AM Aug 04, 2020Observed: 51.09 ft at 1:45AM Aug 04, 2020Observed: 51.08 ft at 2:00AM Aug 04, 2020Observed: 51.08 ft at 2:15AM Aug 04, 2020Observed: 51.07 ft at 2:30AM Aug 04, 2020Observed: 51.07 ft at 2:45AM Aug 04, 2020Observed: 51.07 ft at 3:00AM Aug 04, 2020Observed: 51.06 ft at 3:15AM Aug 04, 2020Observed: 51.06 ft at 3:30AM Aug 04, 2020Observed: 51.05 ft at 3:45AM Aug 04, 2020Observed: 51.05 ft at 4:00AM Aug 04, 2020Observed: 51.05 ft at 4:15AM Aug 04, 2020Observed: 51.05 ft at 4:30AM Aug 04, 2020Observed: 51.04 ft at 4:45AM Aug 04, 2020Observed: 51.04 ft at 5:00AM Aug 04, 2020Observed: 51.03 ft at 5:15AM Aug 04, 2020Observed: 51.03 ft at 5:30AM Aug 04, 2020Observed: 51.03 ft at 5:45AM Aug 04, 2020Observed: 51.02 ft at 6:00AM Aug 04, 2020Observed: 51.02 ft at 6:15AM Aug 04, 2020Observed: 51.02 ft at 6:30AM Aug 04, 2020Observed: 51.01 ft at 6:45AM Aug 04, 2020Observed: 51.01 ft at 7:00AM Aug 04, 2020Observed: 51 ft at 7:15AM Aug 04, 2020Observed: 51 ft at 7:30AM Aug 04, 2020Observed: 50.99 ft at 7:45AM Aug 04, 2020Observed: 50.99 ft at 8:00AM Aug 04, 2020Observed: 50.99 ft at 8:15AM Aug 04, 2020Observed: 50.98 ft at 8:30AM Aug 04, 2020Observed: 50.98 ft at 8:45AM Aug 04, 2020Observed: 50.98 ft at 9:00AM Aug 04, 2020Observed: 50.97 ft at 9:15AM Aug 04, 2020Observed: 50.97 ft at 9:30AM Aug 04, 2020Observed: 50.96 ft at 9:45AM Aug 04, 2020Observed: 50.96 ft at 10:00AM Aug 04, 2020Observed: 50.96 ft at 10:15AM Aug 04, 2020Observed: 50.95 ft at 10:30AM Aug 04, 2020Observed: 50.95 ft at 10:45AM Aug 04, 2020Observed: 50.95 ft at 11:00AM Aug 04, 2020Observed: 50.94 ft at 11:15AM Aug 04, 2020Observed: 50.94 ft at 11:30AM Aug 04, 2020Observed: 50.93 ft at 11:45AM Aug 04, 2020Observed: 50.93 ft at 12:00PM Aug 04, 2020Observed: 50.92 ft at 12:15PM Aug 04, 2020Observed: 50.92 ft at 12:30PM Aug 04, 2020Observed: 50.92 ft at 12:45PM Aug 04, 2020Observed: 50.91 ft at 1:00PM Aug 04, 2020Observed: 50.91 ft at 1:15PM Aug 04, 2020Observed: 50.91 ft at 1:30PM Aug 04, 2020Observed: 50.9 ft at 1:45PM Aug 04, 2020Observed: 50.9 ft at 2:00PM Aug 04, 2020Observed: 50.89 ft at 2:15PM Aug 04, 2020Observed: 50.88 ft at 2:30PM Aug 04, 2020Observed: 50.88 ft at 2:45PM Aug 04, 2020Observed: 50.88 ft at 3:00PM Aug 04, 2020Observed: 50.88 ft at 3:15PM Aug 04, 2020Observed: 50.87 ft at 3:30PM Aug 04, 2020Observed: 50.87 ft at 3:45PM Aug 04, 2020Observed: 50.86 ft at 4:00PM Aug 04, 2020Observed: 50.86 ft at 4:15PM Aug 04, 2020Observed: 50.86 ft at 4:30PM Aug 04, 2020Observed: 50.85 ft at 4:45PM Aug 04, 2020Observed: 50.84 ft at 5:00PM Aug 04, 2020Observed: 50.84 ft at 5:15PM Aug 04, 2020Observed: 50.84 ft at 5:30PM Aug 04, 2020Observed: 50.84 ft at 5:45PM Aug 04, 2020Observed: 50.83 ft at 6:00PM Aug 04, 2020Observed: 50.83 ft at 6:15PM Aug 04, 2020Observed: 50.83 ft at 6:30PM Aug 04, 2020Observed: 50.82 ft at 6:45PM Aug 04, 2020Observed: 50.82 ft at 7:00PM Aug 04, 2020Observed: 50.81 ft at 7:15PM Aug 04, 2020Observed: 50.81 ft at 7:30PM Aug 04, 2020Observed: 50.81 ft at 7:45PM Aug 04, 2020Observed: 50.8 ft at 8:00PM Aug 04, 2020Observed: 50.8 ft at 8:15PM Aug 04, 2020Observed: 50.81 ft at 8:30PM Aug 04, 2020Observed: 50.8 ft at 8:45PM Aug 04, 2020Observed: 50.8 ft at 9:00PM Aug 04, 2020Observed: 50.79 ft at 9:15PM Aug 04, 2020Observed: 50.78 ft at 9:30PM Aug 04, 2020Observed: 50.77 ft at 9:45PM Aug 04, 2020Observed: 50.77 ft at 10:00PM Aug 04, 2020Observed: 50.77 ft at 10:15PM Aug 04, 2020Observed: 50.76 ft at 10:30PM Aug 04, 2020Observed: 50.76 ft at 10:45PM Aug 04, 2020Observed: 50.76 ft at 11:00PM Aug 04, 2020Observed: 50.76 ft at 11:15PM Aug 04, 2020Observed: 50.75 ft at 11:30PM Aug 04, 2020Observed: 50.74 ft at 11:45PM Aug 04, 2020Observed: 50.74 ft at 12:00AM Aug 05, 2020Observed: 50.74 ft at 12:15AM Aug 05, 2020Observed: 50.73 ft at 12:30AM Aug 05, 2020Observed: 50.73 ft at 12:45AM Aug 05, 2020Observed: 50.73 ft at 1:00AM Aug 05, 2020Observed: 50.72 ft at 1:15AM Aug 05, 2020Observed: 50.72 ft at 1:30AM Aug 05, 2020Observed: 50.72 ft at 1:45AM Aug 05, 2020Observed: 50.71 ft at 2:00AM Aug 05, 2020Observed: 50.71 ft at 2:15AM Aug 05, 2020Observed: 50.7 ft at 2:30AM Aug 05, 2020Observed: 50.7 ft at 2:45AM Aug 05, 2020Observed: 50.7 ft at 3:00AM Aug 05, 2020Observed: 50.69 ft at 3:15AM Aug 05, 2020Observed: 50.69 ft at 3:30AM Aug 05, 2020Observed: 50.69 ft at 3:45AM Aug 05, 2020Observed: 50.68 ft at 4:00AM Aug 05, 2020Observed: 50.68 ft at 4:15AM Aug 05, 2020Observed: 50.67 ft at 4:30AM Aug 05, 2020Observed: 50.67 ft at 4:45AM Aug 05, 2020Observed: 50.67 ft at 5:00AM Aug 05, 2020Observed: 50.66 ft at 5:15AM Aug 05, 2020Observed: 50.66 ft at 5:30AM Aug 05, 2020Observed: 50.65 ft at 5:45AM Aug 05, 2020Observed: 50.65 ft at 6:00AM Aug 05, 2020Observed: 50.65 ft at 6:15AM Aug 05, 2020Observed: 50.64 ft at 6:30AM Aug 05, 2020Observed: 50.64 ft at 6:45AM Aug 05, 2020Observed: 50.64 ft at 7:00AM Aug 05, 2020Observed: 50.63 ft at 7:15AM Aug 05, 2020Observed: 50.63 ft at 7:30AM Aug 05, 2020Observed: 50.63 ft at 7:45AM Aug 05, 2020Observed: 50.63 ft at 8:00AM Aug 05, 2020Observed: 50.62 ft at 8:15AM Aug 05, 2020Observed: 50.62 ft at 8:30AM Aug 05, 2020Observed: 50.62 ft at 8:45AM Aug 05, 2020Observed: 50.61 ft at 9:00AM Aug 05, 2020Observed: 50.61 ft at 9:15AM Aug 05, 2020Observed: 50.6 ft at 9:30AM Aug 05, 2020Observed: 50.6 ft at 9:45AM Aug 05, 2020Observed: 50.59 ft at 10:00AM Aug 05, 2020Observed: 50.59 ft at 10:15AM Aug 05, 2020Observed: 50.59 ft at 10:30AM Aug 05, 2020Observed: 50.58 ft at 10:45AM Aug 05, 2020Observed: 50.58 ft at 11:00AM Aug 05, 2020Observed: 50.57 ft at 11:15AM Aug 05, 2020Observed: 50.56 ft at 11:30AM Aug 05, 2020Observed: 50.56 ft at 11:45AM Aug 05, 2020Observed: 50.56 ft at 12:00PM Aug 05, 2020Observed: 50.55 ft at 12:15PM Aug 05, 2020Observed: 50.55 ft at 12:30PM Aug 05, 2020Observed: 50.54 ft at 12:45PM Aug 05, 2020Observed: 50.54 ft at 1:00PM Aug 05, 2020Observed: 50.53 ft at 1:15PM Aug 05, 2020Observed: 50.53 ft at 1:30PM Aug 05, 2020Observed: 50.53 ft at 1:45PM Aug 05, 2020Observed: 50.52 ft at 2:00PM Aug 05, 2020Observed: 50.52 ft at 2:15PM Aug 05, 2020Observed: 50.51 ft at 2:30PM Aug 05, 2020Observed: 50.51 ft at 2:45PM Aug 05, 2020Observed: 50.51 ft at 3:00PM Aug 05, 2020Observed: 50.5 ft at 3:15PM Aug 05, 2020Observed: 50.5 ft at 3:30PM Aug 05, 2020Observed: 50.49 ft at 3:45PM Aug 05, 2020Observed: 50.49 ft at 4:00PM Aug 05, 2020Observed: 50.49 ft at 4:15PM Aug 05, 2020Observed: 50.48 ft at 4:30PM Aug 05, 2020Observed: 50.47 ft at 4:45PM Aug 05, 2020Observed: 50.47 ft at 5:00PM Aug 05, 2020Observed: 50.48 ft at 5:15PM Aug 05, 2020Observed: 50.46 ft at 5:30PM Aug 05, 2020Observed: 50.46 ft at 5:45PM Aug 05, 2020Observed: 50.45 ft at 6:00PM Aug 05, 2020Observed: 50.45 ft at 6:15PM Aug 05, 2020Observed: 50.46 ft at 6:30PM Aug 05, 2020Observed: 50.45 ft at 6:45PM Aug 05, 2020Observed: 50.43 ft at 7:00PM Aug 05, 2020Highest Forecast: 50.34 ft 12:00AM Aug 06, 2020Forecast: 50.24 ft 6:00AM Aug 06, 2020Forecast: 50.13 ft 12:00PM Aug 06, 2020Forecast: 50.02 ft 6:00PM Aug 06, 2020Forecast: 49.91 ft 12:00AM Aug 07, 2020Forecast: 49.8 ft 6:00AM Aug 07, 2020Forecast: 49.69 ft 12:00PM Aug 07, 2020Forecast: 49.58 ft 6:00PM Aug 07, 2020Forecast: 49.47 ft 12:00AM Aug 08, 2020Forecast: 49.36 ft 6:00AM Aug 08, 2020Forecast: 49.25 ft 12:00PM Aug 08, 2020Forecast: 49.13 ft 6:00PM Aug 08, 2020Forecast: 49.02 ft 12:00AM Aug 09, 2020Forecast: 48.9 ft 6:00AM Aug 09, 2020Forecast: 48.77 ft 12:00PM Aug 09, 2020Forecast: 48.65 ft 6:00PM Aug 09, 2020Forecast: 48.52 ft 12:00AM Aug 10, 2020Forecast: 48.4 ft 6:00AM Aug 10, 2020Forecast: 48.27 ft 12:00PM Aug 10, 2020Forecast: 48.14 ft 6:00PM Aug 10, 2020Forecast: 48.02 ft 12:00AM Aug 11, 2020Forecast: 47.89 ft 6:00AM Aug 11, 2020Forecast: 47.76 ft 12:00PM Aug 11, 2020Forecast: 47.63 ft 6:00PM Aug 11, 2020Forecast: 47.5 ft 12:00AM Aug 12, 2020Forecast: 47.37 ft 6:00AM Aug 12, 2020Forecast: 47.25 ft 12:00PM Aug 12, 2020Forecast: 47.12 ft 6:00PM Aug 12, 2020MACI1(plotting HPIRZ) Graph Created (7:48PM Aug 5, 2020)ObservedForecast (issued 2:47PM Aug 5)Latest observed value: 50.43 ft at 7:00 PM MDT 5-Aug-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:
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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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