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Hydrograph River at a Glance Download
Snake River (WA) at Lower Granite Forebay Elevation (ft)Observed: 735.54 ft at 4:00AM Jul 15, 2019Observed: 735.57 ft at 5:00AM Jul 15, 2019Observed: 735.58 ft at 6:00AM Jul 15, 2019Observed: 735.62 ft at 7:00AM Jul 15, 2019Observed: 735.67 ft at 8:00AM Jul 15, 2019Observed: 735.71 ft at 9:00AM Jul 15, 2019Observed: 735.76 ft at 10:00AM Jul 15, 2019Observed: 735.79 ft at 11:00AM Jul 15, 2019Observed: 735.72 ft at 12:00PM Jul 15, 2019Observed: 735.71 ft at 1:00PM Jul 15, 2019Observed: 735.66 ft at 2:00PM Jul 15, 2019Observed: 735.61 ft at 3:00PM Jul 15, 2019Observed: 735.56 ft at 4:00PM Jul 15, 2019Observed: 735.47 ft at 5:00PM Jul 15, 2019Observed: 735.43 ft at 6:00PM Jul 15, 2019Observed: 735.39 ft at 7:00PM Jul 15, 2019Observed: 735.32 ft at 8:00PM Jul 15, 2019Observed: 735.23 ft at 9:00PM Jul 15, 2019Observed: 735.17 ft at 10:00PM Jul 15, 2019Observed: 735.25 ft at 11:00PM Jul 15, 2019Observed: 735.22 ft at 12:00AM Jul 16, 2019Observed: 735.26 ft at 1:00AM Jul 16, 2019Observed: 735.35 ft at 2:00AM Jul 16, 2019Observed: 735.37 ft at 3:00AM Jul 16, 2019Observed: 735.43 ft at 4:00AM Jul 16, 2019Observed: 735.55 ft at 5:00AM Jul 16, 2019Observed: 735.58 ft at 6:00AM Jul 16, 2019Observed: 735.68 ft at 7:00AM Jul 16, 2019Observed: 735.79 ft at 8:00AM Jul 16, 2019Observed: 735.85 ft at 9:00AM Jul 16, 2019Observed: 735.94 ft at 10:00AM Jul 16, 2019Observed: 736.02 ft at 11:00AM Jul 16, 2019Observed: 736.05 ft at 12:00PM Jul 16, 2019Observed: 736.05 ft at 1:00PM Jul 16, 2019Observed: 736.07 ft at 2:00PM Jul 16, 2019Observed: 736.05 ft at 3:00PM Jul 16, 2019Observed: 735.93 ft at 4:00PM Jul 16, 2019Observed: 735.85 ft at 5:00PM Jul 16, 2019Observed: 735.82 ft at 6:00PM Jul 16, 2019Observed: 735.72 ft at 7:00PM Jul 16, 2019Observed: 735.65 ft at 8:00PM Jul 16, 2019Observed: 735.63 ft at 9:00PM Jul 16, 2019Observed: 735.56 ft at 10:00PM Jul 16, 2019Observed: 735.62 ft at 11:00PM Jul 16, 2019Observed: 735.62 ft at 12:00AM Jul 17, 2019Observed: 735.68 ft at 1:00AM Jul 17, 2019Observed: 735.75 ft at 2:00AM Jul 17, 2019Observed: 735.76 ft at 3:00AM Jul 17, 2019Observed: 735.81 ft at 4:00AM Jul 17, 2019Observed: 735.88 ft at 5:00AM Jul 17, 2019Observed: 735.93 ft at 6:00AM Jul 17, 2019Observed: 735.96 ft at 7:00AM Jul 17, 2019Observed: 736.03 ft at 8:00AM Jul 17, 2019Observed: 736.06 ft at 9:00AM Jul 17, 2019Observed: 736.05 ft at 10:00AM Jul 17, 2019Observed: 736.11 ft at 11:00AM Jul 17, 2019Observed: 736.16 ft at 12:00PM Jul 17, 2019Observed: 736.2 ft at 1:00PM Jul 17, 2019Highest Observation: 736.22 ft at 2:00PM Jul 17, 2019Observed: 736.19 ft at 3:00PM Jul 17, 2019Observed: 736.18 ft at 4:00PM Jul 17, 2019Observed: 736.12 ft at 5:00PM Jul 17, 2019Observed: 736.03 ft at 6:00PM Jul 17, 2019Observed: 735.96 ft at 7:00PM Jul 17, 2019Observed: 735.89 ft at 8:00PM Jul 17, 2019Observed: 735.79 ft at 9:00PM Jul 17, 2019Observed: 735.77 ft at 10:00PM Jul 17, 2019Observed: 735.8 ft at 11:00PM Jul 17, 2019Observed: 735.75 ft at 12:00AM Jul 18, 2019Observed: 735.82 ft at 1:00AM Jul 18, 2019Observed: 735.93 ft at 2:00AM Jul 18, 2019Observed: 735.94 ft at 3:00AM Jul 18, 2019Observed: 736.02 ft at 4:00AM Jul 18, 2019Observed: 736.16 ft at 5:00AM Jul 18, 2019Observed: 736.19 ft at 6:00AM Jul 18, 2019Observed: 736.13 ft at 7:00AM Jul 18, 2019Highest Observation: 736.22 ft at 8:00AM Jul 18, 2019Observed: 736.17 ft at 9:00AM Jul 18, 2019Observed: 736.14 ft at 10:00AM Jul 18, 2019Observed: 736.2 ft at 11:00AM Jul 18, 2019Observed: 736.15 ft at 12:00PM Jul 18, 2019Observed: 736.11 ft at 1:00PM Jul 18, 2019Observed: 736.12 ft at 2:00PM Jul 18, 2019Observed: 736.03 ft at 3:00PM Jul 18, 2019Observed: 735.98 ft at 4:00PM Jul 18, 2019Observed: 735.9 ft at 5:00PM Jul 18, 2019Observed: 735.83 ft at 6:00PM Jul 18, 2019Observed: 735.81 ft at 7:00PM Jul 18, 2019Observed: 735.75 ft at 8:00PM Jul 18, 2019Observed: 735.68 ft at 9:00PM Jul 18, 2019Observed: 735.61 ft at 10:00PM Jul 18, 2019Observed: 735.69 ft at 11:00PM Jul 18, 2019Observed: 735.64 ft at 12:00AM Jul 19, 2019Observed: 735.67 ft at 1:00AM Jul 19, 2019Observed: 735.78 ft at 2:00AM Jul 19, 2019Observed: 735.78 ft at 3:00AM Jul 19, 2019Observed: 735.83 ft at 4:00AM Jul 19, 2019Observed: 735.94 ft at 5:00AM Jul 19, 2019Observed: 736.01 ft at 6:00AM Jul 19, 2019Observed: 735.96 ft at 7:00AM Jul 19, 2019Observed: 735.99 ft at 8:00AM Jul 19, 2019Observed: 735.98 ft at 9:00AM Jul 19, 2019Observed: 735.88 ft at 10:00AM Jul 19, 2019Observed: 735.9 ft at 11:00AM Jul 19, 2019Observed: 735.93 ft at 12:00PM Jul 19, 2019Observed: 735.86 ft at 1:00PM Jul 19, 2019Observed: 735.95 ft at 2:00PM Jul 19, 2019Observed: 735.96 ft at 3:00PM Jul 19, 2019Observed: 735.97 ft at 4:00PM Jul 19, 2019Observed: 736.01 ft at 5:00PM Jul 19, 2019Observed: 735.99 ft at 6:00PM Jul 19, 2019Observed: 735.97 ft at 7:00PM Jul 19, 2019Observed: 735.98 ft at 8:00PM Jul 19, 2019Observed: 735.95 ft at 9:00PM Jul 19, 2019Observed: 735.92 ft at 10:00PM Jul 19, 2019Observed: 735.94 ft at 11:00PM Jul 19, 2019Observed: 735.93 ft at 12:00AM Jul 20, 2019Observed: 735.92 ft at 1:00AM Jul 20, 2019Observed: 735.94 ft at 2:00AM Jul 20, 2019Observed: 735.92 ft at 3:00AM Jul 20, 2019Observed: 735.92 ft at 4:00AM Jul 20, 2019Observed: 735.94 ft at 5:00AM Jul 20, 2019Observed: 735.89 ft at 6:00AM Jul 20, 2019Observed: 735.76 ft at 7:00AM Jul 20, 2019Observed: 735.73 ft at 8:00AM Jul 20, 2019Observed: 735.55 ft at 9:00AM Jul 20, 2019Observed: 735.43 ft at 10:00AM Jul 20, 2019Observed: 735.43 ft at 11:00AM Jul 20, 2019Observed: 735.49 ft at 12:00PM Jul 20, 2019Observed: 735.43 ft at 1:00PM Jul 20, 2019Observed: 735.51 ft at 2:00PM Jul 20, 2019Observed: 735.59 ft at 3:00PM Jul 20, 2019Observed: 735.51 ft at 4:00PM Jul 20, 2019Observed: 735.59 ft at 5:00PM Jul 20, 2019Observed: 735.62 ft at 6:00PM Jul 20, 2019Observed: 735.58 ft at 7:00PM Jul 20, 2019Observed: 735.61 ft at 8:00PM Jul 20, 2019Observed: 735.62 ft at 9:00PM Jul 20, 2019Observed: 735.62 ft at 10:00PM Jul 20, 2019Observed: 735.64 ft at 11:00PM Jul 20, 2019Observed: 735.64 ft at 12:00AM Jul 21, 2019Observed: 735.64 ft at 1:00AM Jul 21, 2019Observed: 735.64 ft at 2:00AM Jul 21, 2019Observed: 735.64 ft at 3:00AM Jul 21, 2019Observed: 735.64 ft at 4:00AM Jul 21, 2019Observed: 735.64 ft at 5:00AM Jul 21, 2019Observed: 735.65 ft at 6:00AM Jul 21, 2019Observed: 735.63 ft at 7:00AM Jul 21, 2019Observed: 735.64 ft at 8:00AM Jul 21, 2019Observed: 735.65 ft at 9:00AM Jul 21, 2019Observed: 735.67 ft at 10:00AM Jul 21, 2019Observed: 735.71 ft at 11:00AM Jul 21, 2019Observed: 735.75 ft at 12:00PM Jul 21, 2019Observed: 735.77 ft at 1:00PM Jul 21, 2019Observed: 735.82 ft at 2:00PM Jul 21, 2019Observed: 735.81 ft at 3:00PM Jul 21, 2019Observed: 735.85 ft at 4:00PM Jul 21, 2019Observed: 735.87 ft at 5:00PM Jul 21, 2019Observed: 735.86 ft at 6:00PM Jul 21, 2019Observed: 735.87 ft at 7:00PM Jul 21, 2019Observed: 735.93 ft at 8:00PM Jul 21, 2019Observed: 735.96 ft at 9:00PM Jul 21, 2019Observed: 735.95 ft at 10:00PM Jul 21, 2019Observed: 735.98 ft at 11:00PM Jul 21, 2019Observed: 735.98 ft at 12:00AM Jul 22, 2019Observed: 735.95 ft at 1:00AM Jul 22, 2019Highest Forecast: 735.64 ft 5:00AM Jul 22, 2019Highest Forecast: 735.64 ft 11:00AM Jul 22, 2019Highest Forecast: 735.64 ft 5:00PM Jul 22, 2019Highest Forecast: 735.64 ft 11:00PM Jul 22, 2019Highest Forecast: 735.64 ft 5:00AM Jul 23, 2019Highest Forecast: 735.64 ft 11:00AM Jul 23, 2019Highest Forecast: 735.64 ft 5:00PM Jul 23, 2019Highest Forecast: 735.64 ft 11:00PM Jul 23, 2019Highest Forecast: 735.64 ft 5:00AM Jul 24, 2019Highest Forecast: 735.64 ft 11:00AM Jul 24, 2019Highest Forecast: 735.64 ft 5:00PM Jul 24, 2019Highest Forecast: 735.64 ft 11:00PM Jul 24, 2019Highest Forecast: 735.64 ft 5:00AM Jul 25, 2019Highest Forecast: 735.64 ft 11:00AM Jul 25, 2019Highest Forecast: 735.64 ft 5:00PM Jul 25, 2019Highest Forecast: 735.64 ft 11:00PM Jul 25, 2019Highest Forecast: 735.64 ft 5:00AM Jul 26, 2019Highest Forecast: 735.64 ft 11:00AM Jul 26, 2019Highest Forecast: 735.64 ft 5:00PM Jul 26, 2019Highest Forecast: 735.64 ft 11:00PM Jul 26, 2019Highest Forecast: 735.64 ft 5:00AM Jul 27, 2019Highest Forecast: 735.64 ft 11:00AM Jul 27, 2019Highest Forecast: 735.64 ft 5:00PM Jul 27, 2019Highest Forecast: 735.64 ft 11:00PM Jul 27, 2019Highest Forecast: 735.64 ft 5:00AM Jul 28, 2019Highest Forecast: 735.64 ft 11:00AM Jul 28, 2019Highest Forecast: 735.64 ft 5:00PM Jul 28, 2019Highest Forecast: 735.64 ft 11:00PM Jul 28, 2019LGDW1(plotting HFIRX) Graph Created (3:16AM Jul 22, 2019)ObservedForecast (issued 9:54AM Jul 21)Latest observed value: 735.95 ft at 1:00 AM PDT 22-Jul-2019.
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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
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.
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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