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Hydrograph River at a Glance Download
Snake River (WA) at Lower Granite Forebay Elevation (ft)Observed: 733.48 ft at 9:00AM May 13, 2018Observed: 733.51 ft at 10:00AM May 13, 2018Observed: 733.51 ft at 11:00AM May 13, 2018Observed: 733.52 ft at 12:00PM May 13, 2018Observed: 733.54 ft at 1:00PM May 13, 2018Observed: 733.51 ft at 2:00PM May 13, 2018Observed: 733.42 ft at 3:00PM May 13, 2018Observed: 733.4 ft at 4:00PM May 13, 2018Observed: 733.35 ft at 5:00PM May 13, 2018Observed: 733.3 ft at 6:00PM May 13, 2018Observed: 733.24 ft at 7:00PM May 13, 2018Observed: 733.17 ft at 8:00PM May 13, 2018Observed: 733.17 ft at 9:00PM May 13, 2018Observed: 733.16 ft at 10:00PM May 13, 2018Observed: 733.16 ft at 11:00PM May 13, 2018Observed: 733.17 ft at 12:00AM May 14, 2018Observed: 733.14 ft at 1:00AM May 14, 2018Observed: 733.24 ft at 2:00AM May 14, 2018Observed: 733.29 ft at 3:00AM May 14, 2018Observed: 733.29 ft at 4:00AM May 14, 2018Observed: 733.33 ft at 5:00AM May 14, 2018Observed: 733.37 ft at 6:00AM May 14, 2018Observed: 733.43 ft at 7:00AM May 14, 2018Observed: 733.5 ft at 8:00AM May 14, 2018Observed: 733.61 ft at 9:00AM May 14, 2018Observed: 733.66 ft at 10:00AM May 14, 2018Observed: 733.62 ft at 11:00AM May 14, 2018Observed: 733.67 ft at 12:00PM May 14, 2018Observed: 733.63 ft at 1:00PM May 14, 2018Observed: 733.6 ft at 2:00PM May 14, 2018Observed: 733.58 ft at 3:00PM May 14, 2018Observed: 733.54 ft at 4:00PM May 14, 2018Observed: 733.49 ft at 5:00PM May 14, 2018Observed: 733.43 ft at 6:00PM May 14, 2018Observed: 733.39 ft at 7:00PM May 14, 2018Observed: 733.37 ft at 8:00PM May 14, 2018Observed: 733.33 ft at 9:00PM May 14, 2018Observed: 733.31 ft at 10:00PM May 14, 2018Observed: 733.31 ft at 11:00PM May 14, 2018Observed: 733.31 ft at 12:00AM May 15, 2018Observed: 733.3 ft at 1:00AM May 15, 2018Observed: 733.36 ft at 2:00AM May 15, 2018Observed: 733.36 ft at 3:00AM May 15, 2018Observed: 733.4 ft at 4:00AM May 15, 2018Observed: 733.45 ft at 5:00AM May 15, 2018Observed: 733.51 ft at 6:00AM May 15, 2018Observed: 733.62 ft at 7:00AM May 15, 2018Observed: 733.67 ft at 8:00AM May 15, 2018Observed: 733.77 ft at 9:00AM May 15, 2018Observed: 733.79 ft at 10:00AM May 15, 2018Observed: 733.86 ft at 11:00AM May 15, 2018Observed: 733.9 ft at 12:00PM May 15, 2018Observed: 733.9 ft at 1:00PM May 15, 2018Highest Observation: 733.93 ft at 2:00PM May 15, 2018Observed: 733.8 ft at 3:00PM May 15, 2018Observed: 733.74 ft at 4:00PM May 15, 2018Observed: 733.69 ft at 5:00PM May 15, 2018Observed: 733.56 ft at 6:00PM May 15, 2018Observed: 733.47 ft at 7:00PM May 15, 2018Observed: 733.37 ft at 8:00PM May 15, 2018Observed: 733.3 ft at 9:00PM May 15, 2018Observed: 733.3 ft at 10:00PM May 15, 2018Observed: 733.31 ft at 11:00PM May 15, 2018Observed: 733.31 ft at 12:00AM May 16, 2018Observed: 733.32 ft at 1:00AM May 16, 2018Observed: 733.31 ft at 2:00AM May 16, 2018Observed: 733.31 ft at 3:00AM May 16, 2018Observed: 733.31 ft at 4:00AM May 16, 2018Observed: 733.35 ft at 5:00AM May 16, 2018Observed: 733.38 ft at 6:00AM May 16, 2018Observed: 733.43 ft at 7:00AM May 16, 2018Observed: 733.42 ft at 8:00AM May 16, 2018Observed: 733.57 ft at 9:00AM May 16, 2018Observed: 733.59 ft at 10:00AM May 16, 2018Observed: 733.65 ft at 11:00AM May 16, 2018Observed: 733.64 ft at 12:00PM May 16, 2018Observed: 733.67 ft at 1:00PM May 16, 2018Observed: 733.66 ft at 2:00PM May 16, 2018Observed: 733.62 ft at 3:00PM May 16, 2018Observed: 733.67 ft at 4:00PM May 16, 2018Observed: 733.66 ft at 5:00PM May 16, 2018Observed: 733.64 ft at 6:00PM May 16, 2018Observed: 733.66 ft at 7:00PM May 16, 2018Observed: 733.66 ft at 8:00PM May 16, 2018Observed: 733.66 ft at 9:00PM May 16, 2018Observed: 733.68 ft at 10:00PM May 16, 2018Observed: 733.68 ft at 11:00PM May 16, 2018Observed: 733.7 ft at 12:00AM May 17, 2018Observed: 733.71 ft at 1:00AM May 17, 2018Observed: 733.72 ft at 2:00AM May 17, 2018Observed: 733.71 ft at 3:00AM May 17, 2018Observed: 733.73 ft at 4:00AM May 17, 2018Observed: 733.74 ft at 5:00AM May 17, 2018Observed: 733.72 ft at 6:00AM May 17, 2018Observed: 733.71 ft at 7:00AM May 17, 2018Observed: 733.63 ft at 8:00AM May 17, 2018Observed: 733.53 ft at 9:00AM May 17, 2018Observed: 733.45 ft at 10:00AM May 17, 2018Observed: 733.33 ft at 11:00AM May 17, 2018Observed: 733.27 ft at 12:00PM May 17, 2018Observed: 733.21 ft at 1:00PM May 17, 2018Observed: 733.21 ft at 2:00PM May 17, 2018Observed: 733.19 ft at 3:00PM May 17, 2018Observed: 733.2 ft at 4:00PM May 17, 2018Observed: 733.24 ft at 5:00PM May 17, 2018Observed: 733.3 ft at 6:00PM May 17, 2018Observed: 733.31 ft at 7:00PM May 17, 2018Observed: 733.35 ft at 8:00PM May 17, 2018Observed: 733.39 ft at 9:00PM May 17, 2018Observed: 733.44 ft at 10:00PM May 17, 2018Observed: 733.47 ft at 11:00PM May 17, 2018Observed: 733.5 ft at 12:00AM May 18, 2018Observed: 733.51 ft at 1:00AM May 18, 2018Observed: 733.52 ft at 2:00AM May 18, 2018Observed: 733.54 ft at 3:00AM May 18, 2018Observed: 733.56 ft at 4:00AM May 18, 2018Observed: 733.55 ft at 5:00AM May 18, 2018Observed: 733.55 ft at 6:00AM May 18, 2018Observed: 733.51 ft at 7:00AM May 18, 2018Observed: 733.51 ft at 8:00AM May 18, 2018Observed: 733.48 ft at 9:00AM May 18, 2018Observed: 733.48 ft at 10:00AM May 18, 2018Observed: 733.48 ft at 11:00AM May 18, 2018Observed: 733.48 ft at 12:00PM May 18, 2018Observed: 733.45 ft at 1:00PM May 18, 2018Observed: 733.47 ft at 2:00PM May 18, 2018Observed: 733.47 ft at 3:00PM May 18, 2018Observed: 733.46 ft at 4:00PM May 18, 2018Observed: 733.48 ft at 5:00PM May 18, 2018Observed: 733.51 ft at 6:00PM May 18, 2018Observed: 733.51 ft at 7:00PM May 18, 2018Observed: 733.51 ft at 8:00PM May 18, 2018Observed: 733.51 ft at 9:00PM May 18, 2018Observed: 733.51 ft at 10:00PM May 18, 2018Observed: 733.51 ft at 11:00PM May 18, 2018Observed: 733.51 ft at 12:00AM May 19, 2018Observed: 733.51 ft at 1:00AM May 19, 2018Observed: 733.51 ft at 2:00AM May 19, 2018Observed: 733.48 ft at 3:00AM May 19, 2018Observed: 733.45 ft at 4:00AM May 19, 2018Observed: 733.41 ft at 5:00AM May 19, 2018Observed: 733.4 ft at 6:00AM May 19, 2018Observed: 733.37 ft at 7:00AM May 19, 2018Observed: 733.34 ft at 8:00AM May 19, 2018Observed: 733.31 ft at 9:00AM May 19, 2018Observed: 733.3 ft at 10:00AM May 19, 2018Observed: 733.27 ft at 11:00AM May 19, 2018Observed: 733.26 ft at 12:00PM May 19, 2018Observed: 733.24 ft at 1:00PM May 19, 2018Observed: 733.24 ft at 2:00PM May 19, 2018Observed: 733.23 ft at 3:00PM May 19, 2018Observed: 733.21 ft at 4:00PM May 19, 2018Observed: 733.22 ft at 5:00PM May 19, 2018Observed: 733.23 ft at 6:00PM May 19, 2018Observed: 733.21 ft at 7:00PM May 19, 2018Observed: 733.26 ft at 8:00PM May 19, 2018Observed: 733.32 ft at 9:00PM May 19, 2018Observed: 733.38 ft at 10:00PM May 19, 2018Observed: 733.44 ft at 11:00PM May 19, 2018Observed: 733.51 ft at 12:00AM May 20, 2018Observed: 733.55 ft at 1:00AM May 20, 2018Observed: 733.61 ft at 2:00AM May 20, 2018Observed: 733.66 ft at 3:00AM May 20, 2018Observed: 733.62 ft at 4:00AM May 20, 2018Observed: 733.61 ft at 5:00AM May 20, 2018Observed: 733.59 ft at 6:00AM May 20, 2018Observed: 733.59 ft at 7:00AM May 20, 2018Observed: 733.58 ft at 8:00AM May 20, 2018Highest Forecast: 733.44 ft 11:00AM May 20, 2018Highest Forecast: 733.44 ft 5:00PM May 20, 2018Highest Forecast: 733.44 ft 11:00PM May 20, 2018Highest Forecast: 733.44 ft 5:00AM May 21, 2018Highest Forecast: 733.44 ft 11:00AM May 21, 2018Highest Forecast: 733.44 ft 5:00PM May 21, 2018Highest Forecast: 733.44 ft 11:00PM May 21, 2018Highest Forecast: 733.44 ft 5:00AM May 22, 2018Highest Forecast: 733.44 ft 11:00AM May 22, 2018Highest Forecast: 733.44 ft 5:00PM May 22, 2018Highest Forecast: 733.44 ft 11:00PM May 22, 2018Highest Forecast: 733.44 ft 5:00AM May 23, 2018Highest Forecast: 733.44 ft 11:00AM May 23, 2018Highest Forecast: 733.44 ft 5:00PM May 23, 2018Highest Forecast: 733.44 ft 11:00PM May 23, 2018Highest Forecast: 733.44 ft 5:00AM May 24, 2018Highest Forecast: 733.44 ft 11:00AM May 24, 2018Highest Forecast: 733.44 ft 5:00PM May 24, 2018Highest Forecast: 733.44 ft 11:00PM May 24, 2018Highest Forecast: 733.44 ft 5:00AM May 25, 2018Highest Forecast: 733.44 ft 11:00AM May 25, 2018Highest Forecast: 733.44 ft 5:00PM May 25, 2018Highest Forecast: 733.44 ft 11:00PM May 25, 2018Highest Forecast: 733.44 ft 5:00AM May 26, 2018Highest Forecast: 733.44 ft 11:00AM May 26, 2018Highest Forecast: 733.44 ft 5:00PM May 26, 2018Highest Forecast: 733.44 ft 11:00PM May 26, 2018Highest Forecast: 733.44 ft 5:00AM May 27, 2018LGDW1(plotting HFIRX) Graph Created (8:46AM May 20, 2018)ObservedForecast (issued 4:53AM May 20)Latest observed value: 733.58 ft at 8:00 AM PDT 20-May-2018.
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by reservoir operations.

NOTE: Forecasts for the Snake River (WA) at Lower Granite are issued routinely year-round.

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Upstream Gauge - near Anatone Upstream Gauge Downstream Gauge Downstream Gauge - at Little Goose Dam
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.
Zoom Level:9
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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.
About This Location Collapse

Latitude: 46.650000° N, Longitude: 117.410000° 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:
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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
Spokane Weather Forecast Office
2601 N. Rambo Rd.
Spokane, WA 99224
(509) 244-0110
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