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Hydrograph River at a Glance Download
Lake Chelan at Chelan Forebay Elevation (ft)Highest Observation: 1090.61 ft at 12:00AM Jan 18, 2021Observed: 1090.51 ft at 7:00AM Jan 18, 2021Observed: 1090.51 ft at 12:00AM Jan 19, 2021Observed: 1090.41 ft at 7:00AM Jan 19, 2021Observed: 1090.41 ft at 12:00AM Jan 20, 2021Observed: 1090.29 ft at 7:00AM Jan 20, 2021Observed: 1090.29 ft at 12:00AM Jan 21, 2021Observed: 1090.24 ft at 7:00AM Jan 21, 2021Observed: 1090.2 ft at 12:00AM Jan 22, 2021Observed: 1090.12 ft at 7:00AM Jan 22, 2021Observed: 1090.1 ft at 12:00AM Jan 23, 2021Observed: 1090 ft at 7:00AM Jan 23, 2021Observed: 1089.99 ft at 12:00AM Jan 24, 2021Observed: 1089.88 ft at 7:00AM Jan 24, 2021Highest Forecast: 1089.85 ft 4:00PM Jan 24, 2021Forecast: 1089.82 ft 10:00PM Jan 24, 2021Forecast: 1089.8 ft 4:00AM Jan 25, 2021Forecast: 1089.77 ft 10:00AM Jan 25, 2021Forecast: 1089.75 ft 4:00PM Jan 25, 2021Forecast: 1089.72 ft 10:00PM Jan 25, 2021Forecast: 1089.7 ft 4:00AM Jan 26, 2021Forecast: 1089.67 ft 10:00AM Jan 26, 2021Forecast: 1089.64 ft 4:00PM Jan 26, 2021Forecast: 1089.62 ft 10:00PM Jan 26, 2021Forecast: 1089.59 ft 4:00AM Jan 27, 2021Forecast: 1089.57 ft 10:00AM Jan 27, 2021Forecast: 1089.54 ft 4:00PM Jan 27, 2021Forecast: 1089.51 ft 10:00PM Jan 27, 2021Forecast: 1089.49 ft 4:00AM Jan 28, 2021Forecast: 1089.46 ft 10:00AM Jan 28, 2021Forecast: 1089.43 ft 4:00PM Jan 28, 2021Forecast: 1089.41 ft 10:00PM Jan 28, 2021Forecast: 1089.38 ft 4:00AM Jan 29, 2021Forecast: 1089.36 ft 10:00AM Jan 29, 2021Forecast: 1089.33 ft 4:00PM Jan 29, 2021Forecast: 1089.3 ft 10:00PM Jan 29, 2021Forecast: 1089.28 ft 4:00AM Jan 30, 2021Forecast: 1089.25 ft 10:00AM Jan 30, 2021Forecast: 1089.22 ft 4:00PM Jan 30, 2021Forecast: 1089.2 ft 10:00PM Jan 30, 2021Forecast: 1089.19 ft 4:00AM Jan 31, 2021Forecast: 1089.17 ft 10:00AM Jan 31, 2021USGS--Water Resources of the United StatesCHDW1(plotting HFIRX) Graph Created (2:01PM Jan 24, 2021)ObservedForecast (issued 7:54AM Jan 24)Latest observed value: 1089.88 ft at 7:00 AM PST 24-Jan-2021.
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Tabular Data (UTC)
Tabular Data (PST)
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 at Stehekin Upstream Gauge
Flood Categories (in feet)
Not Available

Historic Crests
(1) 1,100.16 ft on 06/30/1981

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,100.16 ft on 06/30/1981

(P): Preliminary values subject to further review.

Low Water Records
(1) 1,079.68 ft on 04/03/1970
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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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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
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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
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2601 N. Rambo Rd.
Spokane, WA 99224
(509) 244-0110
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Page last modified: 30-Oct-2020 4:07 PM
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