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Hydrograph River at a Glance Download
Trail Creek (ID) at Ketchum Stage (ft)Flow (cfs)Highest Observation: 6 ft at 5:15AM Jan 19, 2021Observed: 5.96 ft at 5:30AM Jan 19, 2021Observed: 5.91 ft at 5:45AM Jan 19, 2021Observed: 5.85 ft at 6:00AM Jan 19, 2021Observed: 5.76 ft at 6:15AM Jan 19, 2021Observed: 5.81 ft at 6:45PM Jan 19, 2021Observed: 5.95 ft at 7:00PM Jan 19, 2021Observed: 5.95 ft at 5:45AM Jan 20, 2021Observed: 5.84 ft at 6:00AM Jan 20, 2021Observed: 5.78 ft at 7:00PM Jan 20, 2021Observed: 5.95 ft at 7:15PM Jan 20, 2021Observed: 5.96 ft at 10:15AM Jan 23, 2021Observed: 5.88 ft at 10:30AM Jan 23, 2021Observed: 5.81 ft at 10:45AM Jan 23, 2021Observed: 5.81 ft at 2:15PM Jan 23, 2021Observed: 5.91 ft at 2:30PM Jan 23, 2021Observed: 5.97 ft at 5:30AM Jan 24, 2021Observed: 5.77 ft at 5:45AM Jan 24, 2021Observed: 5.8 ft at 6:15PM Jan 24, 2021Observed: 5.91 ft at 6:30PM Jan 24, 2021Observed: 5.91 ft at 9:00AM Jan 25, 2021Observed: 5.82 ft at 9:15AM Jan 25, 2021Observed: 5.79 ft at 5:30PM Jan 25, 2021Observed: 5.9 ft at 5:45PM Jan 25, 2021Observed: 5.9 ft at 5:15AM Jan 26, 2021Observed: 5.77 ft at 7:45PM Jan 26, 2021Observed: 5.85 ft at 8:00PM Jan 26, 2021Observed: 5.93 ft at 8:15PM Jan 26, 2021Highest Observation: 6 ft at 8:30PM Jan 26, 2021USGS--Water Resources of the United StatesTCKI1(plotting HGIRG) Graph Created (11:03PM Jan 27, 2021)ObservedLatest observed value: 6 ft at 8:30 PM MST 26-Jan-2021. Flood Stage is 7 ft
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Tabular Data (UTC)
Tabular Data (MST)
XML Data
RSS Files
Datum: Not Available
NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts are not available for the Trail Creek (ID) at Ketchum. Only observed stages are available for this point.

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Downstream Gauge Downstream Gauge - at Gimlet
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 7
Action Stage: 6.5
Low Stage (in feet): -9999

Historic Crests
(1) 7.83 ft on 06/08/2017
(2) 7.04 ft on 06/29/2011
(3) 7.03 ft on 06/07/2019
(4) 6.94 ft on 06/05/2012
(5) 6.70 ft on 05/31/2018
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(P): Preliminary values subject to further review.

Recent Crests
(1) 7.03 ft on 06/07/2019
(2) 6.70 ft on 05/31/2018
(3) 7.83 ft on 06/08/2017
(4) 6.56 ft on 06/06/2016
(5) 6.35 ft on 06/09/2015
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(P): Preliminary values subject to further review.

Low Water Records
(1) -0.02 ft on 02/24/1969
(2) 0.23 ft on 01/21/1967
(3) 0.24 ft on 01/24/1965
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For more information on your flood risk go to

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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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7 or 451 cfs... Lowland flooding from near Corral Creek and Trail Creek to the confluence of the Big Wood River. Flooding through areas of Sun Valley and the golf course and Boundary Campground.
6.5 or 284 cfs... Near bankfull from near Corral Creek and Trail Creek to the confluence of the Big Wood River.
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Latitude: 43.677800° N, Longitude: 114.361100° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 7 ft 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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Pocatello Weather Forecast Office
1945 Beechcraft Ave
Pocatello, ID 83204
(208) 232-9306
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Page last modified: 30-Oct-2020 4:08 PM
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