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Hydrograph River at a Glance Download
Lake Chelan at Chelan Forebay Elevation (ft)Observed: 1090.22 ft at 11:59PM May 19, 2022Observed: 1090.06 ft at 12:00AM May 20, 2022Observed: 1090.16 ft at 7:00AM May 20, 2022Observed: 1090.28 ft at 11:59PM May 20, 2022Observed: 1090.21 ft at 12:00AM May 21, 2022Observed: 1090.37 ft at 7:00AM May 21, 2022Observed: 1090.49 ft at 11:59PM May 21, 2022Observed: 1090.4 ft at 12:00AM May 22, 2022Observed: 1090.53 ft at 7:00AM May 22, 2022Observed: 1090.65 ft at 11:59PM May 22, 2022Observed: 1090.58 ft at 12:00AM May 23, 2022Observed: 1090.74 ft at 7:00AM May 23, 2022Observed: 1090.9 ft at 11:59PM May 23, 2022Observed: 1090.82 ft at 12:00AM May 24, 2022Observed: 1090.99 ft at 7:00AM May 24, 2022Observed: 1091.16 ft at 11:59PM May 24, 2022Observed: 1091.02 ft at 12:00AM May 25, 2022Observed: 1091.22 ft at 7:00AM May 25, 2022Observed: 1091.36 ft at 11:59PM May 25, 2022Observed: 1091.25 ft at 12:00AM May 26, 2022Highest Observation: 1091.41 ft at 7:00AM May 26, 2022Forecast: 1091.5 ft 5:00PM May 26, 2022Forecast: 1091.56 ft 11:00PM May 26, 2022Forecast: 1091.61 ft 5:00AM May 27, 2022Forecast: 1091.68 ft 11:00AM May 27, 2022Forecast: 1091.75 ft 5:00PM May 27, 2022Forecast: 1091.83 ft 11:00PM May 27, 2022Forecast: 1091.91 ft 5:00AM May 28, 2022Forecast: 1091.99 ft 11:00AM May 28, 2022Forecast: 1092.06 ft 5:00PM May 28, 2022Forecast: 1092.13 ft 11:00PM May 28, 2022Forecast: 1092.18 ft 5:00AM May 29, 2022Forecast: 1092.23 ft 11:00AM May 29, 2022Forecast: 1092.28 ft 5:00PM May 29, 2022Forecast: 1092.33 ft 11:00PM May 29, 2022Forecast: 1092.37 ft 5:00AM May 30, 2022Forecast: 1092.41 ft 11:00AM May 30, 2022Forecast: 1092.45 ft 5:00PM May 30, 2022Forecast: 1092.48 ft 11:00PM May 30, 2022Forecast: 1092.52 ft 5:00AM May 31, 2022Forecast: 1092.56 ft 11:00AM May 31, 2022Forecast: 1092.6 ft 5:00PM May 31, 2022Forecast: 1092.65 ft 11:00PM May 31, 2022Forecast: 1092.7 ft 5:00AM Jun 01, 2022Forecast: 1092.75 ft 11:00AM Jun 01, 2022Forecast: 1092.81 ft 5:00PM Jun 01, 2022Forecast: 1092.86 ft 11:00PM Jun 01, 2022Forecast: 1092.91 ft 5:00AM Jun 02, 2022Highest Forecast: 1092.97 ft 11:00AM Jun 02, 2022USGS--Water Resources of the United StatesCHDW1(plotting HFIRX) Graph Created (11:16AM May 26, 2022)ObservedForecast (issued 9:34AM May 26)Latest observed value: 1091.41 ft at 7:00 AM PDT 26-May-2022.
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Tabular Data (UTC)
Tabular Data (PDT)
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RSS Files
Datum: Not Available
NOTE: Gauge reading affected by reservoir operations.

NOTE: Forecasts for the Lake Chelan at Chelan are issued routinely year-round.

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Upstream Gauge - at Purple Point near Stehekin Upstream Gauge
Flood Categories (in feet)
Not Available

Historic Crests
(1) 1,100.16 ft on 06/30/1981
(2) 1,099.82 ft on 07/02/2021 (P)
(3) 1,099.81 ft on 07/09/2019
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(P): Preliminary values subject to further review.

Recent Crests
(1) 1,099.82 ft on 07/02/2021 (P)
(2) 1,099.78 ft on 07/28/2020
(3) 1,099.81 ft on 07/09/2019
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(P): Preliminary values subject to further review.

Low Water Records
(1) 1,079.68 ft on 04/03/1970
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Zoom Level:11
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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.
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6000 Flows in excess of 6000cfs may damage the stream restoration work in the Chelan River Gorge downstream of the Chelan Dam.
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Latitude: 47.836389° N, Longitude: 120.060278° 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)
(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

Current/Historical Observations:

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NWS Information
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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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