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Hydrograph River at a Glance Download
Lake Chelan at Chelan Forebay Elevation (ft)Observed: 1089.64 ft at 11:59PM Apr 05, 2024Observed: 1089.63 ft at 12:00AM Apr 06, 2024Observed: 1089.72 ft at 7:00AM Apr 06, 2024Observed: 1089.72 ft at 11:59PM Apr 06, 2024Observed: 1089.71 ft at 12:00AM Apr 07, 2024Observed: 1089.74 ft at 7:00AM Apr 07, 2024Observed: 1089.8 ft at 11:59PM Apr 07, 2024Observed: 1089.75 ft at 12:00AM Apr 08, 2024Observed: 1089.85 ft at 7:00AM Apr 08, 2024Observed: 1089.86 ft at 11:59PM Apr 08, 2024Observed: 1089.83 ft at 12:00AM Apr 09, 2024Observed: 1089.86 ft at 7:00AM Apr 09, 2024Observed: 1089.87 ft at 11:59PM Apr 09, 2024Observed: 1089.86 ft at 12:00AM Apr 10, 2024Highest Observation: 1089.88 ft at 7:00AM Apr 10, 2024Observed: 1089.87 ft at 11:59PM Apr 10, 2024Observed: 1089.87 ft at 12:00AM Apr 11, 2024Observed: 1089.87 ft at 7:00AM Apr 11, 2024Highest Observation: 1089.88 ft at 11:59PM Apr 11, 2024Observed: 1089.87 ft at 12:00AM Apr 12, 2024Highest Observation: 1089.88 ft at 7:00AM Apr 12, 2024Forecast: 1089.89 ft 5:00AM Apr 13, 2024Highest Forecast: 1089.9 ft 11:00AM Apr 13, 2024Forecast: 1089.89 ft 5:00PM Apr 13, 2024Forecast: 1089.87 ft 11:00PM Apr 13, 2024Forecast: 1089.86 ft 5:00AM Apr 14, 2024Forecast: 1089.85 ft 11:00AM Apr 14, 2024Forecast: 1089.84 ft 5:00PM Apr 14, 2024Forecast: 1089.82 ft 11:00PM Apr 14, 2024Forecast: 1089.81 ft 5:00AM Apr 15, 2024Forecast: 1089.8 ft 11:00AM Apr 15, 2024Forecast: 1089.78 ft 5:00PM Apr 15, 2024Forecast: 1089.77 ft 11:00PM Apr 15, 2024Forecast: 1089.76 ft 5:00AM Apr 16, 2024Forecast: 1089.75 ft 11:00AM Apr 16, 2024Forecast: 1089.73 ft 5:00PM Apr 16, 2024Forecast: 1089.72 ft 11:00PM Apr 16, 2024Forecast: 1089.71 ft 5:00AM Apr 17, 2024Forecast: 1089.7 ft 11:00AM Apr 17, 2024Forecast: 1089.68 ft 5:00PM Apr 17, 2024Forecast: 1089.67 ft 11:00PM Apr 17, 2024Forecast: 1089.66 ft 5:00AM Apr 18, 2024Forecast: 1089.64 ft 11:00AM Apr 18, 2024Forecast: 1089.63 ft 5:00PM Apr 18, 2024Forecast: 1089.62 ft 11:00PM Apr 18, 2024Forecast: 1089.61 ft 5:00AM Apr 19, 2024Forecast: 1089.59 ft 11:00AM Apr 19, 2024Forecast: 1089.58 ft 5:00PM Apr 19, 2024Forecast: 1089.57 ft 11:00PM Apr 19, 2024USGS--Water Resources of the United StatesCHDW1(plotting HFIRX) Graph Created (11:01PM Apr 12, 2024)ObservedForecast (issued 4:07PM Apr 12)Latest observed value: 1089.88 ft at 7:00 AM PDT 12-Apr-2024.
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Tabular Data (PDT)
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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) 1,099.32 ft on 06/17/2023 (P)
(2) 1,099.53 ft on 08/03/2022
(3) 1,099.82 ft on 07/02/2021
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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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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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2601 N. Rambo Rd.
Spokane, WA 99224
(509) 244-0110
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