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Hydrograph River at a Glance Download
Boise River above Lucky Peak Dam Adjusted Discharge (kcfs)Observed: 15.09 kcfs at 11:59PM May 19, 2023Observed: 15.95 kcfs at 11:59PM May 20, 2023Observed: 16.72 kcfs at 11:59PM May 21, 2023Highest Observation: 17.21 kcfs at 11:59PM May 22, 2023Observed: 16.74 kcfs at 11:59PM May 23, 2023Observed: 14.52 kcfs at 11:59PM May 24, 2023Observed: 13.44 kcfs at 11:59PM May 25, 2023Observed: 12.23 kcfs at 11:59PM May 26, 2023Observed: 11.52 kcfs at 11:59PM May 27, 2023Observed: 10.98 kcfs at 11:59PM May 28, 2023Forecast: 10.29 kcfs 12:00PM May 29, 2023Forecast: 10.05 kcfs 6:00PM May 29, 2023Forecast: 9.85 kcfs 12:00AM May 30, 2023Forecast: 9.7 kcfs 6:00AM May 30, 2023Forecast: 9.58 kcfs 12:00PM May 30, 2023Forecast: 9.58 kcfs 6:00PM May 30, 2023Forecast: 9.81 kcfs 12:00AM May 31, 2023Forecast: 10.14 kcfs 6:00AM May 31, 2023Forecast: 10.45 kcfs 12:00PM May 31, 2023Forecast: 10.86 kcfs 6:00PM May 31, 2023Forecast: 11.28 kcfs 12:00AM Jun 01, 2023Forecast: 11.52 kcfs 6:00AM Jun 01, 2023Highest Forecast: 11.52 kcfs 12:00PM Jun 01, 2023Forecast: 11.38 kcfs 6:00PM Jun 01, 2023Forecast: 11.18 kcfs 12:00AM Jun 02, 2023Forecast: 10.93 kcfs 6:00AM Jun 02, 2023Forecast: 10.64 kcfs 12:00PM Jun 02, 2023Forecast: 10.34 kcfs 6:00PM Jun 02, 2023Forecast: 10.07 kcfs 12:00AM Jun 03, 2023Forecast: 9.83 kcfs 6:00AM Jun 03, 2023Forecast: 9.6 kcfs 12:00PM Jun 03, 2023Forecast: 9.39 kcfs 6:00PM Jun 03, 2023Forecast: 9.24 kcfs 12:00AM Jun 04, 2023Forecast: 9.11 kcfs 6:00AM Jun 04, 2023Forecast: 9 kcfs 12:00PM Jun 04, 2023Forecast: 9.04 kcfs 6:00PM Jun 04, 2023Forecast: 9.19 kcfs 12:00AM Jun 05, 2023Forecast: 9.3 kcfs 6:00AM Jun 05, 2023Forecast: 9.32 kcfs 12:00PM Jun 05, 2023Forecast: 9.36 kcfs 6:00PM Jun 05, 2023Forecast: 9.44 kcfs 12:00AM Jun 06, 2023Forecast: 9.48 kcfs 6:00AM Jun 06, 2023Forecast: 9.42 kcfs 12:00PM Jun 06, 2023Forecast: 9.44 kcfs 6:00PM Jun 06, 2023Forecast: 9.69 kcfs 12:00AM Jun 07, 2023Forecast: 9.96 kcfs 6:00AM Jun 07, 2023Forecast: 10.09 kcfs 12:00PM Jun 07, 2023Forecast: 10.23 kcfs 6:00PM Jun 07, 2023Forecast: 10.39 kcfs 12:00AM Jun 08, 2023Forecast: 10.46 kcfs 6:00AM Jun 08, 2023LUCI1(plotting QAIRZ) Graph Created (9:15AM May 29, 2023)ObservedForecast (issued 8:44AM May 29)Latest observed value: 10.98 kcfs at 11:59 PM MDT 28-May-2023.
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
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Datum: Not Available
NOTE: The blue dots represent the estimated daily average natural inflow to the Boise River system above Lucky Peak Dam. The 7 day forecast is for total Boise River natural inflow above Lucky Peak Dam. This includes the Boise River South Fork, Middle Fork, North Fork, Mores Creek and other ungauged small tributaries.

NOTE: Forecasts for the Boise River above Lucky Peak Dam are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Locations
Flood Categories (in KCFS)
Not Available

Historic Crests
(1) 24,109 cfs on 05/07/2017
(2) 22,786 cfs on 04/27/2012
(3) 18,787 cfs on 05/15/2011
(4) 17,685 cfs on 06/05/2010
(5) 17,394 cfs on 04/09/2019
(6) 11,316 cfs on 04/13/2016
(7) 9,977 cfs on 05/09/2018
(8) 9,773 cfs on 05/28/2014
(9) 7,517 cfs on 05/14/2013
(10) 5,076 cfs on 05/06/2015

(P): Preliminary values subject to further review.

Recent Crests
(1) 17,394 cfs on 04/09/2019
(2) 9,977 cfs on 05/09/2018
(3) 24,109 cfs on 05/07/2017
(4) 11,316 cfs on 04/13/2016
(5) 5,076 cfs on 05/06/2015
(6) 9,773 cfs on 05/28/2014
(7) 7,517 cfs on 05/14/2013
(8) 22,786 cfs on 04/27/2012
(9) 18,787 cfs on 05/15/2011
(10) 17,685 cfs on 06/05/2010

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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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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(1) Boise River Basin above Lucky Peak Dam
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Latitude: 43.525556° N, Longitude: 116.055278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS flow Not Available 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
Other Not Available Not Available  

Current/Historical Observations:

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NWS Information
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Boise Weather Forecast Office
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Boise, ID 83705-5354
(208) 334-9860
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