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  NOTICE:There is a service interruption for a number of stream gauges nationwide due to the Global Positioning System (GPS) Rollover that occurred on April 6 at 23:59 GMT. The National Weather Service is working with federal, state, and local partners to ensure those affected gauges obtain the necessary updates to resume data transmission. We apologize for the service interruption and hope to have the data restored as soon as possible.

Hydrograph River at a Glance Download
Boise River above Lucky Peak Dam Adjusted Discharge (kcfs)Observed: 7.51 kcfs at 11:59PM Apr 13, 2019Observed: 8.12 kcfs at 11:59PM Apr 14, 2019Observed: 7.71 kcfs at 11:59PM Apr 15, 2019Observed: 7.37 kcfs at 11:59PM Apr 16, 2019Observed: 7.34 kcfs at 11:59PM Apr 17, 2019Observed: 7.61 kcfs at 11:59PM Apr 18, 2019Observed: 9.16 kcfs at 11:59PM Apr 19, 2019Observed: 11.95 kcfs at 11:59PM Apr 20, 2019Highest Observation: 14.14 kcfs at 11:59PM Apr 21, 2019Forecast: 12.28 kcfs 12:00AM Apr 23, 2019Forecast: 11.97 kcfs 6:00AM Apr 23, 2019Forecast: 11.81 kcfs 12:00PM Apr 23, 2019Forecast: 11.72 kcfs 6:00PM Apr 23, 2019Forecast: 11.8 kcfs 12:00AM Apr 24, 2019Forecast: 12.04 kcfs 6:00AM Apr 24, 2019Forecast: 12.29 kcfs 12:00PM Apr 24, 2019Forecast: 12.42 kcfs 6:00PM Apr 24, 2019Forecast: 12.53 kcfs 12:00AM Apr 25, 2019Forecast: 12.69 kcfs 6:00AM Apr 25, 2019Forecast: 12.77 kcfs 12:00PM Apr 25, 2019Forecast: 12.74 kcfs 6:00PM Apr 25, 2019Forecast: 12.76 kcfs 12:00AM Apr 26, 2019Forecast: 13.03 kcfs 6:00AM Apr 26, 2019Forecast: 13.44 kcfs 12:00PM Apr 26, 2019Forecast: 13.84 kcfs 6:00PM Apr 26, 2019Forecast: 14.17 kcfs 12:00AM Apr 27, 2019Highest Forecast: 14.4 kcfs 6:00AM Apr 27, 2019Forecast: 14.38 kcfs 12:00PM Apr 27, 2019Forecast: 14.1 kcfs 6:00PM Apr 27, 2019Forecast: 13.73 kcfs 12:00AM Apr 28, 2019Forecast: 13.42 kcfs 6:00AM Apr 28, 2019Forecast: 13.14 kcfs 12:00PM Apr 28, 2019Forecast: 12.88 kcfs 6:00PM Apr 28, 2019Forecast: 12.71 kcfs 12:00AM Apr 29, 2019Forecast: 12.66 kcfs 6:00AM Apr 29, 2019Forecast: 12.62 kcfs 12:00PM Apr 29, 2019Forecast: 12.51 kcfs 6:00PM Apr 29, 2019Forecast: 12.32 kcfs 12:00AM Apr 30, 2019Forecast: 12.08 kcfs 6:00AM Apr 30, 2019Forecast: 11.8 kcfs 12:00PM Apr 30, 2019Forecast: 11.48 kcfs 6:00PM Apr 30, 2019Forecast: 11.24 kcfs 12:00AM May 01, 2019Forecast: 11.19 kcfs 6:00AM May 01, 2019Forecast: 11.23 kcfs 12:00PM May 01, 2019Forecast: 11.27 kcfs 6:00PM May 01, 2019Forecast: 11.29 kcfs 12:00AM May 02, 2019Forecast: 11.32 kcfs 6:00AM May 02, 2019LUCI1(plotting QAIRZ) Graph Created (6:24PM Apr 22, 2019)ObservedForecast (issued 4:34PM Apr 22)Latest observed value: 14.14 kcfs at 11:59 PM MDT 21-Apr-2019.
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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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Flood Categories (in KCFS)
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Recent Crests
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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: 43.525278° N, Longitude: 116.054167° 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  
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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
National Weather Service
Boise Weather Forecast Office
NIFC Building 3807
Boise, ID 83705-5354
(208) 334-9860
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Page last modified: 4-Mar-2019 11:28 PM
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