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Hydrograph River at a Glance Download
Lake Chelan at Chelan Forebay Elevation (ft)Observed: 1085.15 ft at 11:59PM Mar 19, 2023Highest Observation: 1085.2 ft at 12:00AM Mar 20, 2023Observed: 1085.13 ft at 7:00AM Mar 20, 2023Observed: 1085.11 ft at 11:59PM Mar 20, 2023Observed: 1085.12 ft at 12:00AM Mar 21, 2023Observed: 1085.1 ft at 7:00AM Mar 21, 2023Observed: 1085.09 ft at 11:59PM Mar 21, 2023Observed: 1085.07 ft at 12:00AM Mar 22, 2023Observed: 1085.03 ft at 7:00AM Mar 22, 2023Observed: 1085.03 ft at 11:59PM Mar 22, 2023Observed: 1085.03 ft at 12:00AM Mar 23, 2023Observed: 1085.01 ft at 7:00AM Mar 23, 2023Observed: 1085.03 ft at 11:59PM Mar 23, 2023Observed: 1085.02 ft at 12:00AM Mar 24, 2023Observed: 1085.01 ft at 7:00AM Mar 24, 2023Observed: 1085 ft at 7:00AM Mar 25, 2023Observed: 1084.99 ft at 11:59PM Mar 25, 2023Observed: 1085 ft at 12:00AM Mar 26, 2023Observed: 1084.99 ft at 7:00AM Mar 26, 2023Highest Forecast: 1084.98 ft 5:00PM Mar 26, 2023Forecast: 1084.97 ft 11:00PM Mar 26, 2023Forecast: 1084.96 ft 5:00AM Mar 27, 2023Forecast: 1084.95 ft 11:00AM Mar 27, 2023Forecast: 1084.94 ft 5:00PM Mar 27, 2023Forecast: 1084.93 ft 11:00PM Mar 27, 2023Forecast: 1084.92 ft 5:00AM Mar 28, 2023Forecast: 1084.91 ft 11:00AM Mar 28, 2023Forecast: 1084.9 ft 5:00PM Mar 28, 2023Forecast: 1084.89 ft 11:00PM Mar 28, 2023Forecast: 1084.88 ft 5:00AM Mar 29, 2023Forecast: 1084.87 ft 11:00AM Mar 29, 2023Forecast: 1084.86 ft 5:00PM Mar 29, 2023Forecast: 1084.85 ft 11:00PM Mar 29, 2023Forecast: 1084.84 ft 5:00AM Mar 30, 2023Forecast: 1084.83 ft 11:00AM Mar 30, 2023Forecast: 1084.82 ft 5:00PM Mar 30, 2023Forecast: 1084.81 ft 11:00PM Mar 30, 2023Forecast: 1084.8 ft 5:00AM Mar 31, 2023Forecast: 1084.79 ft 11:00AM Mar 31, 2023Forecast: 1084.78 ft 5:00PM Mar 31, 2023Forecast: 1084.77 ft 11:00PM Mar 31, 2023Forecast: 1084.76 ft 5:00AM Apr 01, 2023Forecast: 1084.75 ft 11:00AM Apr 01, 2023Forecast: 1084.74 ft 5:00PM Apr 01, 2023Forecast: 1084.73 ft 11:00PM Apr 01, 2023Forecast: 1084.72 ft 5:00AM Apr 02, 2023Forecast: 1084.71 ft 11:00AM Apr 02, 2023USGS--Water Resources of the United StatesCHDW1(plotting HFIRX) Graph Created (12:46PM Mar 26, 2023)ObservedForecast (issued 10:01AM Mar 26)Latest observed value: 1084.99 ft at 7:00 AM PDT 26-Mar-2023.
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Tabular Data (UTC)
Tabular Data (PDT)
XML Data
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
(3) 1,099.81 ft on 07/09/2019
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(P): Preliminary values subject to further review.

Recent Crests
(1) 1,099.52 ft on 07/31/2022 (P)
(2) 1,099.82 ft on 07/02/2021
(3) 1,099.78 ft on 07/28/2020
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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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Gauge LocationGauge Map Marker
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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If you notice any errors in the below information, please contact our Webmaster
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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