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Hydrograph River at a Glance Download
Columbia River at Rocky Reach Dam Forebay Elevation (ft)Observed: 705.93 ft at 1:00PM Oct 09, 2021Observed: 706.14 ft at 2:00PM Oct 09, 2021Observed: 706.15 ft at 3:00PM Oct 09, 2021Observed: 706.37 ft at 4:00PM Oct 09, 2021Observed: 706.25 ft at 5:00PM Oct 09, 2021Observed: 705.67 ft at 6:00PM Oct 09, 2021Observed: 705.42 ft at 7:00PM Oct 09, 2021Observed: 705.43 ft at 8:00PM Oct 09, 2021Observed: 705.29 ft at 9:00PM Oct 09, 2021Observed: 705.33 ft at 10:00PM Oct 09, 2021Observed: 705.6 ft at 11:00PM Oct 09, 2021Observed: 705.64 ft at 11:59PM Oct 09, 2021Observed: 705.64 ft at 12:00AM Oct 10, 2021Observed: 705.21 ft at 1:00AM Oct 10, 2021Observed: 705.98 ft at 2:00AM Oct 10, 2021Observed: 706.03 ft at 3:00AM Oct 10, 2021Observed: 706.15 ft at 4:00AM Oct 10, 2021Observed: 706.31 ft at 5:00AM Oct 10, 2021Observed: 706.72 ft at 6:00AM Oct 10, 2021Observed: 706.65 ft at 7:00AM Oct 10, 2021Observed: 706.54 ft at 8:00AM Oct 10, 2021Observed: 706.72 ft at 9:00AM Oct 10, 2021Observed: 706.58 ft at 10:00AM Oct 10, 2021Observed: 706.47 ft at 11:00AM Oct 10, 2021Observed: 706.27 ft at 12:00PM Oct 10, 2021Observed: 705.9 ft at 1:00PM Oct 10, 2021Observed: 705.98 ft at 2:00PM Oct 10, 2021Observed: 705.9 ft at 3:00PM Oct 10, 2021Observed: 705.93 ft at 4:00PM Oct 10, 2021Observed: 705.76 ft at 5:00PM Oct 10, 2021Observed: 705.54 ft at 6:00PM Oct 10, 2021Observed: 705.05 ft at 7:00PM Oct 10, 2021Observed: 704.99 ft at 8:00PM Oct 10, 2021Observed: 705.08 ft at 9:00PM Oct 10, 2021Observed: 705.24 ft at 10:00PM Oct 10, 2021Observed: 705.07 ft at 11:00PM Oct 10, 2021Observed: 704.99 ft at 11:59PM Oct 10, 2021Observed: 705.88 ft at 12:00AM Oct 11, 2021Observed: 705.39 ft at 1:00AM Oct 11, 2021Observed: 705.45 ft at 2:00AM Oct 11, 2021Observed: 705.47 ft at 3:00AM Oct 11, 2021Observed: 705.75 ft at 4:00AM Oct 11, 2021Observed: 705.86 ft at 5:00AM Oct 11, 2021Observed: 705.41 ft at 6:00AM Oct 11, 2021Observed: 705.3 ft at 7:00AM Oct 11, 2021Observed: 705.78 ft at 8:00AM Oct 11, 2021Observed: 706.01 ft at 9:00AM Oct 11, 2021Observed: 706.62 ft at 1:00PM Oct 11, 2021Observed: 706.09 ft at 2:00PM Oct 11, 2021Observed: 706.03 ft at 3:00PM Oct 11, 2021Observed: 706.38 ft at 4:00PM Oct 11, 2021Observed: 706.61 ft at 5:00PM Oct 11, 2021Observed: 706.56 ft at 6:00PM Oct 11, 2021Observed: 706.41 ft at 7:00PM Oct 11, 2021Observed: 706.26 ft at 8:00PM Oct 11, 2021Observed: 706.25 ft at 9:00PM Oct 11, 2021Observed: 706.4 ft at 10:00PM Oct 11, 2021Highest Observation: 706.89 ft at 11:00PM Oct 11, 2021Observed: 706.67 ft at 11:59PM Oct 11, 2021Observed: 706.67 ft at 12:00AM Oct 12, 2021Observed: 706.77 ft at 1:00AM Oct 12, 2021Observed: 706.86 ft at 2:00AM Oct 12, 2021Observed: 706.71 ft at 3:00AM Oct 12, 2021Observed: 706.72 ft at 4:00AM Oct 12, 2021Observed: 706.78 ft at 5:00AM Oct 12, 2021Observed: 706.54 ft at 6:00AM Oct 12, 2021Observed: 705.98 ft at 7:00AM Oct 12, 2021Observed: 705.61 ft at 8:00AM Oct 12, 2021Observed: 706.12 ft at 9:00AM Oct 12, 2021Observed: 705.98 ft at 10:00AM Oct 12, 2021Observed: 706.17 ft at 11:00AM Oct 12, 2021Observed: 706.13 ft at 12:00PM Oct 12, 2021Observed: 706.15 ft at 1:00PM Oct 12, 2021Observed: 706.13 ft at 2:00PM Oct 12, 2021Observed: 706.46 ft at 3:00PM Oct 12, 2021Observed: 706.43 ft at 4:00PM Oct 12, 2021Observed: 706.35 ft at 5:00PM Oct 12, 2021Observed: 706.1 ft at 6:00PM Oct 12, 2021Observed: 705.91 ft at 7:00PM Oct 12, 2021Observed: 705.67 ft at 8:00PM Oct 12, 2021Observed: 705.58 ft at 9:00PM Oct 12, 2021Observed: 705.4 ft at 10:00PM Oct 12, 2021Observed: 705.9 ft at 11:00PM Oct 12, 2021Observed: 706.21 ft at 11:59PM Oct 12, 2021Observed: 706.19 ft at 12:00AM Oct 13, 2021Observed: 706.47 ft at 1:00AM Oct 13, 2021Observed: 706.52 ft at 2:00AM Oct 13, 2021Observed: 706.86 ft at 3:00AM Oct 13, 2021Observed: 706.58 ft at 4:00AM Oct 13, 2021Observed: 706.59 ft at 5:00AM Oct 13, 2021Observed: 706.55 ft at 6:00AM Oct 13, 2021Observed: 706.67 ft at 7:00AM Oct 13, 2021Observed: 706.13 ft at 8:00AM Oct 13, 2021Observed: 706.23 ft at 9:00AM Oct 13, 2021Observed: 706.35 ft at 10:00AM Oct 13, 2021Observed: 706.33 ft at 11:00AM Oct 13, 2021Observed: 706.36 ft at 12:00PM Oct 13, 2021Observed: 706.38 ft at 1:00PM Oct 13, 2021Observed: 706.23 ft at 2:00PM Oct 13, 2021Observed: 706.09 ft at 3:00PM Oct 13, 2021Observed: 705.91 ft at 4:00PM Oct 13, 2021Observed: 705.61 ft at 5:00PM Oct 13, 2021Observed: 705.19 ft at 6:00PM Oct 13, 2021Observed: 705.03 ft at 7:00PM Oct 13, 2021Observed: 705.03 ft at 8:00PM Oct 13, 2021Observed: 705.05 ft at 9:00PM Oct 13, 2021Observed: 704.94 ft at 10:00PM Oct 13, 2021Observed: 705.06 ft at 11:00PM Oct 13, 2021Observed: 705.47 ft at 11:59PM Oct 13, 2021Observed: 705.47 ft at 12:00AM Oct 14, 2021Observed: 705.47 ft at 1:00AM Oct 14, 2021Observed: 705.7 ft at 2:00AM Oct 14, 2021Observed: 705.64 ft at 3:00AM Oct 14, 2021Observed: 705.96 ft at 4:00AM Oct 14, 2021Observed: 706.01 ft at 5:00AM Oct 14, 2021Observed: 705.8 ft at 6:00AM Oct 14, 2021Observed: 705.47 ft at 7:00AM Oct 14, 2021Observed: 705.95 ft at 8:00AM Oct 14, 2021Observed: 706.22 ft at 9:00AM Oct 14, 2021Observed: 706.47 ft at 10:00AM Oct 14, 2021Observed: 706.34 ft at 11:00AM Oct 14, 2021Observed: 706.11 ft at 12:00PM Oct 14, 2021Observed: 706.48 ft at 1:00PM Oct 14, 2021Observed: 706.4 ft at 2:00PM Oct 14, 2021Observed: 706.35 ft at 3:00PM Oct 14, 2021Observed: 706.05 ft at 4:00PM Oct 14, 2021Observed: 705.56 ft at 5:00PM Oct 14, 2021Observed: 705.16 ft at 6:00PM Oct 14, 2021Observed: 704.64 ft at 7:00PM Oct 14, 2021Observed: 704.69 ft at 8:00PM Oct 14, 2021Observed: 704.76 ft at 9:00PM Oct 14, 2021Observed: 704.73 ft at 10:00PM Oct 14, 2021Observed: 704.97 ft at 11:00PM Oct 14, 2021Observed: 705.14 ft at 11:59PM Oct 14, 2021Observed: 705.14 ft at 12:00AM Oct 15, 2021Observed: 705.28 ft at 1:00AM Oct 15, 2021Observed: 705.09 ft at 2:00AM Oct 15, 2021Observed: 705.63 ft at 3:00AM Oct 15, 2021Observed: 706.27 ft at 4:00AM Oct 15, 2021Observed: 706.52 ft at 5:00AM Oct 15, 2021Observed: 706.44 ft at 6:00AM Oct 15, 2021Observed: 706.43 ft at 7:00AM Oct 15, 2021Observed: 706.52 ft at 8:00AM Oct 15, 2021Observed: 706.57 ft at 9:00AM Oct 15, 2021Observed: 706.4 ft at 10:00AM Oct 15, 2021Observed: 706.67 ft at 11:00AM Oct 15, 2021Observed: 706.24 ft at 12:00PM Oct 15, 2021Observed: 705.95 ft at 1:00PM Oct 15, 2021Observed: 706.31 ft at 2:00PM Oct 15, 2021Observed: 706.26 ft at 3:00PM Oct 15, 2021Observed: 706.17 ft at 4:00PM Oct 15, 2021Observed: 706.04 ft at 5:00PM Oct 15, 2021Observed: 705.5 ft at 6:00PM Oct 15, 2021Observed: 705.29 ft at 7:00PM Oct 15, 2021Observed: 705.36 ft at 8:00PM Oct 15, 2021Observed: 704.74 ft at 9:00PM Oct 15, 2021Observed: 704.78 ft at 10:00PM Oct 15, 2021Observed: 705.46 ft at 11:00PM Oct 15, 2021Observed: 705.93 ft at 11:59PM Oct 15, 2021Observed: 705.93 ft at 12:00AM Oct 16, 2021Observed: 706.36 ft at 1:00AM Oct 16, 2021Observed: 706.29 ft at 2:00AM Oct 16, 2021Observed: 706.63 ft at 3:00AM Oct 16, 2021Observed: 706.56 ft at 4:00AM Oct 16, 2021Observed: 706.74 ft at 5:00AM Oct 16, 2021Observed: 706.35 ft at 6:00AM Oct 16, 2021Observed: 706.31 ft at 7:00AM Oct 16, 2021Observed: 706.17 ft at 8:00AM Oct 16, 2021Observed: 706.33 ft at 9:00AM Oct 16, 2021Observed: 706.36 ft at 10:00AM Oct 16, 2021Observed: 706.5 ft at 11:00AM Oct 16, 2021Highest Forecast: 706.74 ft 5:00PM Oct 16, 2021Highest Forecast: 706.74 ft 11:00PM Oct 16, 2021Highest Forecast: 706.74 ft 5:00AM Oct 17, 2021Highest Forecast: 706.74 ft 11:00AM Oct 17, 2021Highest Forecast: 706.74 ft 5:00PM Oct 17, 2021Highest Forecast: 706.74 ft 11:00PM Oct 17, 2021Highest Forecast: 706.74 ft 5:00AM Oct 18, 2021Highest Forecast: 706.74 ft 11:00AM Oct 18, 2021Highest Forecast: 706.74 ft 5:00PM Oct 18, 2021Highest Forecast: 706.74 ft 11:00PM Oct 18, 2021Highest Forecast: 706.74 ft 5:00AM Oct 19, 2021Highest Forecast: 706.74 ft 11:00AM Oct 19, 2021Highest Forecast: 706.74 ft 5:00PM Oct 19, 2021Highest Forecast: 706.74 ft 11:00PM Oct 19, 2021Highest Forecast: 706.74 ft 5:00AM Oct 20, 2021Highest Forecast: 706.74 ft 11:00AM Oct 20, 2021Highest Forecast: 706.74 ft 5:00PM Oct 20, 2021Highest Forecast: 706.74 ft 11:00PM Oct 20, 2021Highest Forecast: 706.74 ft 5:00AM Oct 21, 2021Highest Forecast: 706.74 ft 11:00AM Oct 21, 2021Highest Forecast: 706.74 ft 5:00PM Oct 21, 2021Highest Forecast: 706.74 ft 11:00PM Oct 21, 2021Highest Forecast: 706.74 ft 5:00AM Oct 22, 2021Highest Forecast: 706.74 ft 11:00AM Oct 22, 2021Highest Forecast: 706.74 ft 5:00PM Oct 22, 2021Highest Forecast: 706.74 ft 11:00PM Oct 22, 2021Highest Forecast: 706.74 ft 5:00AM Oct 23, 2021Highest Forecast: 706.74 ft 11:00AM Oct 23, 2021USGS--Water Resources of the United StatesRRHW1(plotting HFIRX) Graph Created (12:16PM Oct 16, 2021)ObservedForecast (issued 10:06AM Oct 16)Latest observed value: 706.5 ft at 11:00 AM PDT 16-Oct-2021.
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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.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Columbia River at Rocky Reach Dam are issued routinely year-round.

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Upstream Gauge - at Wells Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Rock Island Dam
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 0
Low Stage (in feet): 704

Historic Crests
(1) 780.89 ft on 05/08/2021 (P)
(2) 780.83 ft on 12/04/2020
(3) 780.74 ft on 02/10/2018
(4) 780.72 ft on 05/18/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 780.89 ft on 05/08/2021 (P)
(2) 780.83 ft on 12/04/2020
(3) 780.72 ft on 05/18/2019
(4) 780.74 ft on 02/10/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 776.97 ft on 03/29/2021
Zoom Level:13
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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: 47.530278° N, Longitude: 120.296944° 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  
Additional Information Collapse
courtesy of US Army Corp of Engineers
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
Spokane Weather Forecast Office
2601 N. Rambo Rd.
Spokane, WA 99224
(509) 244-0110
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Page last modified: 2-Nov-2020 7:27 PM
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