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Hydrograph River at a Glance Download
Lake Chelan at Chelan Forebay Elevation (ft)Observed: 1090.38 ft at 11:59PM Apr 22, 2024Observed: 1090.39 ft at 12:00AM Apr 23, 2024Observed: 1090.4 ft at 7:00AM Apr 23, 2024Observed: 1090.38 ft at 11:59PM Apr 23, 2024Observed: 1090.39 ft at 12:00AM Apr 24, 2024Observed: 1090.43 ft at 7:00AM Apr 24, 2024Observed: 1090.47 ft at 11:59PM Apr 24, 2024Observed: 1090.43 ft at 12:00AM Apr 25, 2024Observed: 1090.47 ft at 7:00AM Apr 25, 2024Observed: 1090.47 ft at 11:59PM Apr 25, 2024Observed: 1090.46 ft at 12:00AM Apr 26, 2024Observed: 1090.49 ft at 7:00AM Apr 26, 2024Observed: 1090.49 ft at 11:59PM Apr 26, 2024Observed: 1090.49 ft at 12:00AM Apr 27, 2024Observed: 1090.51 ft at 7:00AM Apr 27, 2024Observed: 1090.52 ft at 11:59PM Apr 27, 2024Observed: 1090.52 ft at 12:00AM Apr 28, 2024Observed: 1090.55 ft at 7:00AM Apr 28, 2024Observed: 1090.63 ft at 11:59PM Apr 28, 2024Observed: 1090.62 ft at 12:00AM Apr 29, 2024Highest Observation: 1090.69 ft at 7:00AM Apr 29, 2024Forecast: 1090.69 ft 5:00PM Apr 29, 2024Forecast: 1090.68 ft 11:00PM Apr 29, 2024Forecast: 1090.68 ft 5:00AM Apr 30, 2024Forecast: 1090.67 ft 11:00AM Apr 30, 2024Forecast: 1090.67 ft 5:00PM Apr 30, 2024Forecast: 1090.66 ft 11:00PM Apr 30, 2024Forecast: 1090.65 ft 5:00AM May 01, 2024Forecast: 1090.66 ft 11:00AM May 01, 2024Forecast: 1090.67 ft 5:00PM May 01, 2024Forecast: 1090.69 ft 11:00PM May 01, 2024Forecast: 1090.71 ft 5:00AM May 02, 2024Forecast: 1090.72 ft 11:00AM May 02, 2024Forecast: 1090.74 ft 5:00PM May 02, 2024Forecast: 1090.75 ft 11:00PM May 02, 2024Forecast: 1090.77 ft 5:00AM May 03, 2024Forecast: 1090.79 ft 11:00AM May 03, 2024Forecast: 1090.81 ft 5:00PM May 03, 2024Forecast: 1090.83 ft 11:00PM May 03, 2024Forecast: 1090.85 ft 5:00AM May 04, 2024Forecast: 1090.87 ft 11:00AM May 04, 2024Forecast: 1090.89 ft 5:00PM May 04, 2024Forecast: 1090.92 ft 11:00PM May 04, 2024Forecast: 1090.94 ft 5:00AM May 05, 2024Forecast: 1090.97 ft 11:00AM May 05, 2024Forecast: 1091 ft 5:00PM May 05, 2024Forecast: 1091.03 ft 11:00PM May 05, 2024Forecast: 1091.05 ft 5:00AM May 06, 2024Highest Forecast: 1091.08 ft 11:00AM May 06, 2024USGS--Water Resources of the United StatesCHDW1(plotting HFIRX) Graph Created (2:16PM Apr 29, 2024)ObservedForecast (issued 10:50AM Apr 29)Latest observed value: 1090.69 ft at 7:00 AM PDT 29-Apr-2024.
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Tabular Data (UTC)
Tabular Data (PDT)
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Datum: Not Available
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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
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,099.32 ft on 06/17/2023 (P)
(2) 1,099.53 ft on 08/03/2022
(3) 1,099.82 ft on 07/02/2021
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1,079.68 ft on 04/03/1970
Show More Low Water Records
Zoom Level:11
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Gauge LocationGauge Map Marker
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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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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)		 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  

Current/Historical Observations:
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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.
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