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Hydrograph River at a Glance Download
Columbia River at Rocky Reach Dam Forebay Elevation (ft)Observed: 705.6 ft at 6:00PM Nov 30, 2021Observed: 705.72 ft at 7:00PM Nov 30, 2021Observed: 705.47 ft at 8:00PM Nov 30, 2021Observed: 705.59 ft at 9:00PM Nov 30, 2021Observed: 705.35 ft at 10:00PM Nov 30, 2021Observed: 705.08 ft at 11:00PM Nov 30, 2021Observed: 705.43 ft at 11:59PM Nov 30, 2021Observed: 705.43 ft at 12:00AM Dec 01, 2021Observed: 705.8 ft at 1:00AM Dec 01, 2021Observed: 705.88 ft at 2:00AM Dec 01, 2021Observed: 706.29 ft at 3:00AM Dec 01, 2021Observed: 706.52 ft at 4:00AM Dec 01, 2021Observed: 706.42 ft at 5:00AM Dec 01, 2021Observed: 705.99 ft at 6:00AM Dec 01, 2021Observed: 705.66 ft at 7:00AM Dec 01, 2021Observed: 705.32 ft at 8:00AM Dec 01, 2021Observed: 705.75 ft at 9:00AM Dec 01, 2021Observed: 705.14 ft at 10:00AM Dec 01, 2021Observed: 704.84 ft at 11:00AM Dec 01, 2021Observed: 705.35 ft at 12:00PM Dec 01, 2021Observed: 705.29 ft at 1:00PM Dec 01, 2021Observed: 705.51 ft at 2:00PM Dec 01, 2021Observed: 705.92 ft at 3:00PM Dec 01, 2021Observed: 705.85 ft at 4:00PM Dec 01, 2021Observed: 705.8 ft at 5:00PM Dec 01, 2021Observed: 705.99 ft at 6:00PM Dec 01, 2021Observed: 706.2 ft at 7:00PM Dec 01, 2021Observed: 706.29 ft at 8:00PM Dec 01, 2021Observed: 706.22 ft at 9:00PM Dec 01, 2021Observed: 706.09 ft at 10:00PM Dec 01, 2021Observed: 705.91 ft at 11:00PM Dec 01, 2021Observed: 706.06 ft at 11:59PM Dec 01, 2021Observed: 705.84 ft at 12:00AM Dec 02, 2021Observed: 706.02 ft at 1:00AM Dec 02, 2021Observed: 706.06 ft at 2:00AM Dec 02, 2021Observed: 706.29 ft at 3:00AM Dec 02, 2021Observed: 706.45 ft at 4:00AM Dec 02, 2021Observed: 706.19 ft at 5:00AM Dec 02, 2021Highest Observation: 706.65 ft at 6:00AM Dec 02, 2021Observed: 706.34 ft at 7:00AM Dec 02, 2021Observed: 706.04 ft at 8:00AM Dec 02, 2021Observed: 705.75 ft at 9:00AM Dec 02, 2021Observed: 705.61 ft at 10:00AM Dec 02, 2021Observed: 705.8 ft at 11:00AM Dec 02, 2021Observed: 705.76 ft at 12:00PM Dec 02, 2021Observed: 705.98 ft at 1:00PM Dec 02, 2021Observed: 706.29 ft at 2:00PM Dec 02, 2021Observed: 706.19 ft at 3:00PM Dec 02, 2021Observed: 705.71 ft at 4:00PM Dec 02, 2021Observed: 706.12 ft at 5:00PM Dec 02, 2021Observed: 706.22 ft at 6:00PM Dec 02, 2021Observed: 706.51 ft at 7:00PM Dec 02, 2021Observed: 706.48 ft at 8:00PM Dec 02, 2021Observed: 706.5 ft at 9:00PM Dec 02, 2021Observed: 706.48 ft at 10:00PM Dec 02, 2021Observed: 706.25 ft at 11:00PM Dec 02, 2021Observed: 706.29 ft at 11:59PM Dec 02, 2021Observed: 706.29 ft at 12:00AM Dec 03, 2021Observed: 706.24 ft at 1:00AM Dec 03, 2021Observed: 706.09 ft at 2:00AM Dec 03, 2021Observed: 706.19 ft at 3:00AM Dec 03, 2021Observed: 706.41 ft at 4:00AM Dec 03, 2021Observed: 706.44 ft at 5:00AM Dec 03, 2021Observed: 706.45 ft at 6:00AM Dec 03, 2021Observed: 706.16 ft at 7:00AM Dec 03, 2021Observed: 706.07 ft at 8:00AM Dec 03, 2021Observed: 706.09 ft at 9:00AM Dec 03, 2021Observed: 705.78 ft at 10:00AM Dec 03, 2021Observed: 705.48 ft at 11:00AM Dec 03, 2021Observed: 705.47 ft at 12:00PM Dec 03, 2021Observed: 705.33 ft at 1:00PM Dec 03, 2021Observed: 705.39 ft at 2:00PM Dec 03, 2021Observed: 705.36 ft at 3:00PM Dec 03, 2021Observed: 705.51 ft at 4:00PM Dec 03, 2021Observed: 705.41 ft at 5:00PM Dec 03, 2021Observed: 705.42 ft at 6:00PM Dec 03, 2021Observed: 705.44 ft at 7:00PM Dec 03, 2021Observed: 705.38 ft at 8:00PM Dec 03, 2021Observed: 705.24 ft at 9:00PM Dec 03, 2021Observed: 705.3 ft at 10:00PM Dec 03, 2021Observed: 705.2 ft at 11:00PM Dec 03, 2021Observed: 705.32 ft at 11:59PM Dec 03, 2021Observed: 705.72 ft at 12:00AM Dec 04, 2021Observed: 705.58 ft at 1:00AM Dec 04, 2021Observed: 705.5 ft at 2:00AM Dec 04, 2021Observed: 705.71 ft at 3:00AM Dec 04, 2021Observed: 705.56 ft at 4:00AM Dec 04, 2021Observed: 705.36 ft at 5:00AM Dec 04, 2021Observed: 705.19 ft at 6:00AM Dec 04, 2021Observed: 704.87 ft at 7:00AM Dec 04, 2021Observed: 704.51 ft at 8:00AM Dec 04, 2021Observed: 704.35 ft at 9:00AM Dec 04, 2021Observed: 704.88 ft at 10:00AM Dec 04, 2021Observed: 705.28 ft at 11:00AM Dec 04, 2021Observed: 705.7 ft at 12:00PM Dec 04, 2021Observed: 706.05 ft at 1:00PM Dec 04, 2021Observed: 706.05 ft at 2:00PM Dec 04, 2021Observed: 706 ft at 3:00PM Dec 04, 2021Observed: 705.84 ft at 4:00PM Dec 04, 2021Observed: 705.78 ft at 5:00PM Dec 04, 2021Observed: 705.74 ft at 6:00PM Dec 04, 2021Observed: 705.88 ft at 7:00PM Dec 04, 2021Observed: 705.84 ft at 8:00PM Dec 04, 2021Observed: 705.89 ft at 9:00PM Dec 04, 2021Observed: 705.94 ft at 10:00PM Dec 04, 2021Observed: 706.03 ft at 11:00PM Dec 04, 2021Observed: 706.12 ft at 11:59PM Dec 04, 2021Observed: 705.57 ft at 12:00AM Dec 05, 2021Observed: 706.13 ft at 1:00AM Dec 05, 2021Observed: 706.07 ft at 2:00AM Dec 05, 2021Observed: 705.67 ft at 3:00AM Dec 05, 2021Observed: 705.49 ft at 4:00AM Dec 05, 2021Observed: 705.14 ft at 5:00AM Dec 05, 2021Observed: 704.84 ft at 6:00AM Dec 05, 2021Observed: 704.72 ft at 7:00AM Dec 05, 2021Observed: 704.54 ft at 8:00AM Dec 05, 2021Observed: 704.81 ft at 9:00AM Dec 05, 2021Observed: 704.82 ft at 10:00AM Dec 05, 2021Observed: 705.05 ft at 11:00AM Dec 05, 2021Observed: 705.16 ft at 12:00PM Dec 05, 2021Observed: 705.08 ft at 1:00PM Dec 05, 2021Observed: 704.85 ft at 2:00PM Dec 05, 2021Observed: 704.64 ft at 3:00PM Dec 05, 2021Observed: 704.25 ft at 4:00PM Dec 05, 2021Observed: 704.15 ft at 5:00PM Dec 05, 2021Observed: 704.39 ft at 6:00PM Dec 05, 2021Observed: 704.66 ft at 7:00PM Dec 05, 2021Observed: 704.97 ft at 8:00PM Dec 05, 2021Observed: 705.24 ft at 9:00PM Dec 05, 2021Observed: 705.22 ft at 10:00PM Dec 05, 2021Observed: 705.32 ft at 11:00PM Dec 05, 2021Observed: 705.45 ft at 11:59PM Dec 05, 2021Observed: 705.03 ft at 12:00AM Dec 06, 2021Observed: 705.53 ft at 1:00AM Dec 06, 2021Observed: 705.54 ft at 2:00AM Dec 06, 2021Observed: 705.71 ft at 3:00AM Dec 06, 2021Observed: 705.96 ft at 4:00AM Dec 06, 2021Observed: 706.22 ft at 5:00AM Dec 06, 2021Observed: 706.23 ft at 6:00AM Dec 06, 2021Observed: 706.24 ft at 7:00AM Dec 06, 2021Observed: 706.06 ft at 8:00AM Dec 06, 2021Observed: 706.08 ft at 9:00AM Dec 06, 2021Observed: 705.97 ft at 10:00AM Dec 06, 2021Observed: 705.91 ft at 11:00AM Dec 06, 2021Observed: 705.88 ft at 12:00PM Dec 06, 2021Observed: 705.88 ft at 1:00PM Dec 06, 2021Observed: 705.96 ft at 2:00PM Dec 06, 2021Observed: 706.13 ft at 3:00PM Dec 06, 2021Observed: 706.14 ft at 4:00PM Dec 06, 2021Observed: 705.93 ft at 5:00PM Dec 06, 2021Observed: 705.8 ft at 6:00PM Dec 06, 2021Observed: 705.54 ft at 7:00PM Dec 06, 2021Observed: 705.43 ft at 8:00PM Dec 06, 2021Observed: 705.4 ft at 9:00PM Dec 06, 2021Observed: 705.28 ft at 10:00PM Dec 06, 2021Observed: 705.14 ft at 11:00PM Dec 06, 2021Observed: 705.15 ft at 11:59PM Dec 06, 2021Observed: 705.8 ft at 12:00AM Dec 07, 2021Observed: 705.25 ft at 1:00AM Dec 07, 2021Observed: 705.3 ft at 2:00AM Dec 07, 2021Observed: 705.25 ft at 3:00AM Dec 07, 2021Observed: 705.59 ft at 4:00AM Dec 07, 2021Observed: 705.66 ft at 5:00AM Dec 07, 2021Observed: 705.41 ft at 6:00AM Dec 07, 2021Observed: 705.16 ft at 7:00AM Dec 07, 2021Observed: 705.37 ft at 8:00AM Dec 07, 2021Observed: 705.55 ft at 9:00AM Dec 07, 2021Observed: 705.72 ft at 10:00AM Dec 07, 2021Observed: 706.16 ft at 11:00AM Dec 07, 2021Observed: 706.15 ft at 12:00PM Dec 07, 2021Observed: 706.12 ft at 1:00PM Dec 07, 2021Observed: 706.16 ft at 2:00PM Dec 07, 2021Observed: 706.37 ft at 3:00PM Dec 07, 2021Observed: 706.36 ft at 4:00PM Dec 07, 2021Highest Forecast: 706.36 ft 10:00PM Dec 07, 2021Highest Forecast: 706.36 ft 4:00AM Dec 08, 2021Highest Forecast: 706.36 ft 10:00AM Dec 08, 2021Highest Forecast: 706.36 ft 4:00PM Dec 08, 2021Highest Forecast: 706.36 ft 10:00PM Dec 08, 2021Highest Forecast: 706.36 ft 4:00AM Dec 09, 2021Highest Forecast: 706.36 ft 10:00AM Dec 09, 2021Highest Forecast: 706.36 ft 4:00PM Dec 09, 2021Highest Forecast: 706.36 ft 10:00PM Dec 09, 2021Highest Forecast: 706.36 ft 4:00AM Dec 10, 2021Highest Forecast: 706.36 ft 10:00AM Dec 10, 2021Highest Forecast: 706.36 ft 4:00PM Dec 10, 2021Highest Forecast: 706.36 ft 10:00PM Dec 10, 2021Highest Forecast: 706.36 ft 4:00AM Dec 11, 2021Highest Forecast: 706.36 ft 10:00AM Dec 11, 2021Highest Forecast: 706.36 ft 4:00PM Dec 11, 2021Highest Forecast: 706.36 ft 10:00PM Dec 11, 2021Highest Forecast: 706.36 ft 4:00AM Dec 12, 2021Highest Forecast: 706.36 ft 10:00AM Dec 12, 2021Highest Forecast: 706.36 ft 4:00PM Dec 12, 2021Highest Forecast: 706.36 ft 10:00PM Dec 12, 2021Highest Forecast: 706.36 ft 4:00AM Dec 13, 2021Highest Forecast: 706.36 ft 10:00AM Dec 13, 2021Highest Forecast: 706.36 ft 4:00PM Dec 13, 2021Highest Forecast: 706.36 ft 10:00PM Dec 13, 2021Highest Forecast: 706.36 ft 4:00AM Dec 14, 2021Highest Forecast: 706.36 ft 10:00AM Dec 14, 2021Highest Forecast: 706.36 ft 4:00PM Dec 14, 2021USGS--Water Resources of the United StatesRRHW1(plotting HFIRX) Graph Created (5:31PM Dec 7, 2021)ObservedForecast (issued 4:51PM Dec 7)Latest observed value: 706.36 ft at 4:00 PM PST 7-Dec-2021.
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About this graph
Tabular Data (UTC)
Tabular Data (PST)
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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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: 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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