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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
Boise River above Lucky Peak Dam Adjusted Discharge (kcfs)Observed: 0.82 kcfs at 11:59PM Sep 15, 2023Highest Observation: 3.72 kcfs at 11:59PM Sep 17, 2023Observed: 0.95 kcfs at 11:59PM Sep 18, 2023Observed: 0.74 kcfs at 11:59PM Sep 19, 2023Observed: 0.71 kcfs at 11:59PM Sep 20, 2023Observed: 0.79 kcfs at 11:59PM Sep 21, 2023Observed: 0.87 kcfs at 11:59PM Sep 22, 2023Observed: 0.83 kcfs at 11:59PM Sep 23, 2023Observed: 0.78 kcfs at 11:59PM Sep 24, 2023Forecast: 0.81 kcfs 12:00PM Sep 25, 2023Forecast: 0.81 kcfs 6:00PM Sep 25, 2023Forecast: 0.81 kcfs 12:00AM Sep 26, 2023Forecast: 0.81 kcfs 6:00AM Sep 26, 2023Forecast: 0.81 kcfs 12:00PM Sep 26, 2023Forecast: 0.81 kcfs 6:00PM Sep 26, 2023Forecast: 0.81 kcfs 12:00AM Sep 27, 2023Forecast: 0.8 kcfs 6:00AM Sep 27, 2023Forecast: 0.8 kcfs 12:00PM Sep 27, 2023Forecast: 0.8 kcfs 6:00PM Sep 27, 2023Forecast: 0.8 kcfs 12:00AM Sep 28, 2023Forecast: 0.8 kcfs 6:00AM Sep 28, 2023Forecast: 0.8 kcfs 12:00PM Sep 28, 2023Forecast: 0.81 kcfs 6:00PM Sep 28, 2023Forecast: 0.81 kcfs 12:00AM Sep 29, 2023Forecast: 0.81 kcfs 6:00AM Sep 29, 2023Forecast: 0.81 kcfs 12:00PM Sep 29, 2023Forecast: 0.8 kcfs 6:00PM Sep 29, 2023Forecast: 0.81 kcfs 12:00AM Sep 30, 2023Forecast: 0.81 kcfs 6:00AM Sep 30, 2023Forecast: 0.82 kcfs 12:00PM Sep 30, 2023Forecast: 0.84 kcfs 6:00PM Sep 30, 2023Forecast: 0.87 kcfs 12:00AM Oct 01, 2023Forecast: 0.9 kcfs 6:00AM Oct 01, 2023Forecast: 0.91 kcfs 12:00PM Oct 01, 2023Forecast: 0.94 kcfs 6:00PM Oct 01, 2023Highest Forecast: 0.95 kcfs 12:00AM Oct 02, 2023Forecast: 0.92 kcfs 6:00AM Oct 02, 2023Forecast: 0.89 kcfs 12:00PM Oct 02, 2023Forecast: 0.86 kcfs 6:00PM Oct 02, 2023Forecast: 0.84 kcfs 12:00AM Oct 03, 2023Forecast: 0.83 kcfs 6:00AM Oct 03, 2023Forecast: 0.82 kcfs 12:00PM Oct 03, 2023Forecast: 0.82 kcfs 6:00PM Oct 03, 2023Forecast: 0.82 kcfs 12:00AM Oct 04, 2023Forecast: 0.82 kcfs 6:00AM Oct 04, 2023LUCI1(plotting QAIRZ) Graph Created (7:00AM Sep 25, 2023)ObservedForecast (issued 11:27AM Sep 24)Latest observed value: 0.78 kcfs at 11:59 PM MDT 24-Sep-2023.
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Tabular Data (MDT)
XML Data
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Datum: Not Available
Metadata
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.
Zoom Level:13
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Disclaimer
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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Photos
(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)
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 Not Available Not Available  

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.
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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Page last modified: 2-Nov-2020 7:28 PM
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