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Hydrograph River at a Glance Download
Columbia River at Rock Island Dam Forebay Elevation (ft)Observed: 611.34 ft at 5:00AM May 13, 2024Observed: 612.17 ft at 6:00AM May 13, 2024Observed: 611.31 ft at 7:00AM May 13, 2024Observed: 611.92 ft at 8:00AM May 13, 2024Observed: 612.38 ft at 9:00AM May 13, 2024Observed: 612.84 ft at 10:00AM May 13, 2024Observed: 612.58 ft at 11:00AM May 13, 2024Observed: 612.1 ft at 12:00PM May 13, 2024Observed: 612.28 ft at 1:00PM May 13, 2024Observed: 611.96 ft at 2:00PM May 13, 2024Observed: 611.9 ft at 3:00PM May 13, 2024Observed: 611.62 ft at 4:00PM May 13, 2024Observed: 611.31 ft at 5:00PM May 13, 2024Observed: 611.29 ft at 6:00PM May 13, 2024Observed: 611.19 ft at 7:00PM May 13, 2024Observed: 611.29 ft at 8:00PM May 13, 2024Observed: 611.48 ft at 9:00PM May 13, 2024Observed: 611.85 ft at 10:00PM May 13, 2024Observed: 611.8 ft at 11:00PM May 13, 2024Observed: 610.74 ft at 11:59PM May 13, 2024Observed: 611.74 ft at 12:00AM May 14, 2024Observed: 611.17 ft at 1:00AM May 14, 2024Observed: 611.33 ft at 2:00AM May 14, 2024Observed: 611.99 ft at 3:00AM May 14, 2024Observed: 612.03 ft at 4:00AM May 14, 2024Observed: 611.94 ft at 5:00AM May 14, 2024Observed: 611.61 ft at 6:00AM May 14, 2024Observed: 612.02 ft at 7:00AM May 14, 2024Observed: 612.12 ft at 8:00AM May 14, 2024Observed: 612.67 ft at 9:00AM May 14, 2024Observed: 612.33 ft at 10:00AM May 14, 2024Observed: 612.2 ft at 11:00AM May 14, 2024Observed: 612.1 ft at 12:00PM May 14, 2024Observed: 611.86 ft at 1:00PM May 14, 2024Observed: 611.8 ft at 2:00PM May 14, 2024Observed: 611.72 ft at 3:00PM May 14, 2024Observed: 611.67 ft at 4:00PM May 14, 2024Observed: 611.57 ft at 5:00PM May 14, 2024Observed: 611.73 ft at 6:00PM May 14, 2024Observed: 611.87 ft at 7:00PM May 14, 2024Observed: 611.75 ft at 8:00PM May 14, 2024Observed: 611.61 ft at 9:00PM May 14, 2024Observed: 611.8 ft at 10:00PM May 14, 2024Observed: 612.06 ft at 11:00PM May 14, 2024Observed: 612.3 ft at 11:59PM May 14, 2024Observed: 611.89 ft at 12:00AM May 15, 2024Observed: 612.51 ft at 1:00AM May 15, 2024Observed: 612.42 ft at 2:00AM May 15, 2024Observed: 612.33 ft at 3:00AM May 15, 2024Observed: 612.05 ft at 4:00AM May 15, 2024Observed: 611.74 ft at 5:00AM May 15, 2024Observed: 611.7 ft at 6:00AM May 15, 2024Observed: 611.49 ft at 7:00AM May 15, 2024Observed: 611.88 ft at 8:00AM May 15, 2024Observed: 612.23 ft at 9:00AM May 15, 2024Observed: 612.29 ft at 10:00AM May 15, 2024Observed: 612.26 ft at 11:00AM May 15, 2024Observed: 612.45 ft at 12:00PM May 15, 2024Observed: 612.74 ft at 1:00PM May 15, 2024Observed: 612.63 ft at 2:00PM May 15, 2024Observed: 612.8 ft at 3:00PM May 15, 2024Observed: 612.72 ft at 4:00PM May 15, 2024Observed: 612.24 ft at 5:00PM May 15, 2024Observed: 611.97 ft at 6:00PM May 15, 2024Observed: 611.69 ft at 7:00PM May 15, 2024Observed: 611.93 ft at 8:00PM May 15, 2024Observed: 611.79 ft at 9:00PM May 15, 2024Observed: 611.96 ft at 10:00PM May 15, 2024Observed: 611.73 ft at 11:00PM May 15, 2024Observed: 611.39 ft at 11:59PM May 15, 2024Observed: 611.39 ft at 12:00AM May 16, 2024Observed: 611.59 ft at 1:00AM May 16, 2024Observed: 611.28 ft at 2:00AM May 16, 2024Observed: 612.37 ft at 3:00AM May 16, 2024Observed: 612.41 ft at 4:00AM May 16, 2024Observed: 612.35 ft at 5:00AM May 16, 2024Observed: 612.26 ft at 6:00AM May 16, 2024Observed: 612.12 ft at 7:00AM May 16, 2024Observed: 612.16 ft at 8:00AM May 16, 2024Observed: 612.03 ft at 9:00AM May 16, 2024Observed: 611.71 ft at 10:00AM May 16, 2024Observed: 611.88 ft at 11:00AM May 16, 2024Observed: 611.79 ft at 12:00PM May 16, 2024Observed: 611.9 ft at 1:00PM May 16, 2024Observed: 611.75 ft at 2:00PM May 16, 2024Observed: 611.83 ft at 3:00PM May 16, 2024Observed: 611.64 ft at 4:00PM May 16, 2024Observed: 611.67 ft at 5:00PM May 16, 2024Observed: 611.55 ft at 6:00PM May 16, 2024Observed: 611.66 ft at 7:00PM May 16, 2024Observed: 611.69 ft at 8:00PM May 16, 2024Observed: 611.43 ft at 9:00PM May 16, 2024Observed: 611.63 ft at 10:00PM May 16, 2024Observed: 611.34 ft at 11:00PM May 16, 2024Observed: 611.91 ft at 11:59PM May 16, 2024Observed: 611.83 ft at 12:00AM May 17, 2024Observed: 612.39 ft at 1:00AM May 17, 2024Observed: 612.22 ft at 2:00AM May 17, 2024Observed: 612.42 ft at 3:00AM May 17, 2024Observed: 612.48 ft at 4:00AM May 17, 2024Observed: 612.26 ft at 5:00AM May 17, 2024Observed: 612.44 ft at 6:00AM May 17, 2024Observed: 612.73 ft at 7:00AM May 17, 2024Highest Observation: 612.92 ft at 8:00AM May 17, 2024Observed: 612.87 ft at 9:00AM May 17, 2024Observed: 612.65 ft at 10:00AM May 17, 2024Observed: 612.56 ft at 11:00AM May 17, 2024Observed: 612.23 ft at 12:00PM May 17, 2024Observed: 612.13 ft at 1:00PM May 17, 2024Observed: 611.68 ft at 2:00PM May 17, 2024Observed: 611.53 ft at 3:00PM May 17, 2024Observed: 611.36 ft at 4:00PM May 17, 2024Observed: 611.34 ft at 5:00PM May 17, 2024Observed: 611.21 ft at 6:00PM May 17, 2024Observed: 610.78 ft at 7:00PM May 17, 2024Observed: 611.42 ft at 8:00PM May 17, 2024Observed: 611.75 ft at 9:00PM May 17, 2024Observed: 611.77 ft at 10:00PM May 17, 2024Observed: 612.38 ft at 11:00PM May 17, 2024Observed: 612.83 ft at 11:59PM May 17, 2024Observed: 612.1 ft at 12:00AM May 18, 2024Observed: 612.56 ft at 1:00AM May 18, 2024Observed: 612.71 ft at 2:00AM May 18, 2024Observed: 612.7 ft at 3:00AM May 18, 2024Observed: 612.75 ft at 4:00AM May 18, 2024Observed: 612.76 ft at 5:00AM May 18, 2024Observed: 612.67 ft at 6:00AM May 18, 2024Observed: 612.42 ft at 7:00AM May 18, 2024Observed: 612.42 ft at 8:00AM May 18, 2024Observed: 612.02 ft at 9:00AM May 18, 2024Observed: 611.86 ft at 10:00AM May 18, 2024Observed: 611.45 ft at 11:00AM May 18, 2024Observed: 612.05 ft at 12:00PM May 18, 2024Observed: 611.88 ft at 1:00PM May 18, 2024Observed: 611.81 ft at 2:00PM May 18, 2024Observed: 611.91 ft at 3:00PM May 18, 2024Observed: 612.18 ft at 4:00PM May 18, 2024Observed: 611.88 ft at 5:00PM May 18, 2024Observed: 611.7 ft at 6:00PM May 18, 2024Observed: 611.98 ft at 7:00PM May 18, 2024Observed: 611.96 ft at 8:00PM May 18, 2024Observed: 611.95 ft at 9:00PM May 18, 2024Observed: 612.01 ft at 10:00PM May 18, 2024Observed: 612.59 ft at 11:00PM May 18, 2024Observed: 612.55 ft at 11:59PM May 18, 2024Observed: 612.2 ft at 12:00AM May 19, 2024Observed: 612.66 ft at 1:00AM May 19, 2024Observed: 612.76 ft at 2:00AM May 19, 2024Observed: 612.63 ft at 3:00AM May 19, 2024Observed: 612.49 ft at 4:00AM May 19, 2024Observed: 612.38 ft at 5:00AM May 19, 2024Observed: 612.2 ft at 6:00AM May 19, 2024Observed: 612.36 ft at 7:00AM May 19, 2024Observed: 612.73 ft at 8:00AM May 19, 2024Observed: 611.21 ft at 9:00AM May 19, 2024Observed: 611.25 ft at 10:00AM May 19, 2024Observed: 612.17 ft at 11:00AM May 19, 2024Observed: 612.8 ft at 12:00PM May 19, 2024Observed: 612.46 ft at 1:00PM May 19, 2024Observed: 612.23 ft at 2:00PM May 19, 2024Observed: 611.24 ft at 3:00PM May 19, 2024Observed: 610.74 ft at 4:00PM May 19, 2024Observed: 611.01 ft at 5:00PM May 19, 2024Observed: 611.39 ft at 6:00PM May 19, 2024Observed: 611.57 ft at 7:00PM May 19, 2024Observed: 611.42 ft at 8:00PM May 19, 2024Observed: 611.41 ft at 9:00PM May 19, 2024Observed: 611.78 ft at 10:00PM May 19, 2024Observed: 612.2 ft at 11:00PM May 19, 2024Observed: 612.71 ft at 11:59PM May 19, 2024Observed: 612.71 ft at 12:00AM May 20, 2024Observed: 612.62 ft at 1:00AM May 20, 2024Observed: 612.73 ft at 2:00AM May 20, 2024Observed: 612.65 ft at 3:00AM May 20, 2024Highest Forecast: 612.17 ft 5:00AM May 20, 2024Highest Forecast: 612.17 ft 11:00AM May 20, 2024Highest Forecast: 612.17 ft 5:00PM May 20, 2024Highest Forecast: 612.17 ft 11:00PM May 20, 2024Highest Forecast: 612.17 ft 5:00AM May 21, 2024Highest Forecast: 612.17 ft 11:00AM May 21, 2024Highest Forecast: 612.17 ft 5:00PM May 21, 2024Highest Forecast: 612.17 ft 11:00PM May 21, 2024Highest Forecast: 612.17 ft 5:00AM May 22, 2024Highest Forecast: 612.17 ft 11:00AM May 22, 2024Highest Forecast: 612.17 ft 5:00PM May 22, 2024Highest Forecast: 612.17 ft 11:00PM May 22, 2024Highest Forecast: 612.17 ft 5:00AM May 23, 2024Highest Forecast: 612.17 ft 11:00AM May 23, 2024Highest Forecast: 612.17 ft 5:00PM May 23, 2024Highest Forecast: 612.17 ft 11:00PM May 23, 2024Highest Forecast: 612.17 ft 5:00AM May 24, 2024Highest Forecast: 612.17 ft 11:00AM May 24, 2024Highest Forecast: 612.17 ft 5:00PM May 24, 2024Highest Forecast: 612.17 ft 11:00PM May 24, 2024Highest Forecast: 612.17 ft 5:00AM May 25, 2024Highest Forecast: 612.17 ft 11:00AM May 25, 2024Highest Forecast: 612.17 ft 5:00PM May 25, 2024Highest Forecast: 612.17 ft 11:00PM May 25, 2024Highest Forecast: 612.17 ft 5:00AM May 26, 2024Highest Forecast: 612.17 ft 11:00AM May 26, 2024Highest Forecast: 612.17 ft 5:00PM May 26, 2024Highest Forecast: 612.17 ft 11:00PM May 26, 2024USGS--Water Resources of the United StatesRISW1(plotting HFIRX) Graph Created (4:16AM May 20, 2024)ObservedForecast (issued 3:56PM May 19)Latest observed value: 612.65 ft at 3:00 AM PDT 20-May-2024.
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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 Rock Island Dam are issued routinely year-round.

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Upstream Gauge - at Rocky Reach Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Wanapum Dam
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 0
Low Stage (in feet): 609

Historic Crests
(1) 612.90 ft on 07/05/2017
(2) 612.89 ft on 08/26/2018
(3) 612.86 ft on 01/21/2019
(4) 612.69 ft on 01/26/2022
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 612.45 ft on 06/23/2023 (P)
(2) 612.69 ft on 01/26/2022
(3) 612.60 ft on 06/04/2021
(4) 612.63 ft on 08/22/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 610.55 ft on 03/14/2021
Zoom Level:13
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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: 47.332500° N, Longitude: 120.080000° 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
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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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