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Hydrograph River at a Glance Download
Ruby River at Ruby Reservoir Pool (ft)Observed: 5356.34 ft at 12:00AM Oct 11, 2020Observed: 5356.44 ft at 12:00AM Oct 12, 2020Observed: 5356.96 ft at 12:00AM Oct 13, 2020Observed: 5357.06 ft at 12:00AM Oct 14, 2020Observed: 5357.38 ft at 12:00AM Oct 15, 2020Observed: 5357.79 ft at 12:00AM Oct 16, 2020Observed: 5357.92 ft at 12:00AM Oct 17, 2020Observed: 5358.23 ft at 12:00AM Oct 18, 2020Highest Observation: 5358.83 ft at 12:00AM Oct 20, 2020ALRM8(plotting HPIRZ) Graph Created (9:37AM Oct 20, 2020)ObservedLatest observed value: 5358.83 ft at 12:00 AM MDT 20-Oct-2020.
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: Not Available
NOTE: Forecasts are not available for the Ruby River at Ruby Reservoir. Only observed stages are available for this point.
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Upstream Gauge - above Ruby Reservoir near Alder Upstream Gauge Downstream Gauge Downstream Gauge - below Ruby Reservoir near Alder
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 0
Low Stage (in feet): 0

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

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Zoom Level:16
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Gauge LocationGauge Map Marker
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.
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Latitude: 45.250000° N, Longitude: 112.116667° 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)
(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
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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
Great Falls Weather Forecast Office
5324 Tri-Hill Frontage Rd
Great Falls, MT 59404-4933
(406) 453-2081
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Page last modified: 1-Mar-2019 12:33 AM
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