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Hydrograph River at a Glance Download
Koyukuk River at South Fork Stage (ft)Highest Observation: 23.69 ft at 10:48AM Jun 28, 2020Highest Observation: 23.69 ft at 11:48AM Jun 28, 2020Observed: 23.66 ft at 12:48PM Jun 28, 2020Highest Observation: 23.69 ft at 1:48PM Jun 28, 2020Observed: 23.64 ft at 2:48PM Jun 28, 2020Observed: 23.66 ft at 3:48PM Jun 28, 2020Observed: 23.61 ft at 4:49PM Jun 28, 2020Observed: 23.55 ft at 5:49PM Jun 28, 2020Observed: 23.63 ft at 6:48PM Jun 28, 2020Observed: 23.67 ft at 7:48PM Jun 28, 2020Highest Observation: 23.69 ft at 8:48PM Jun 28, 2020Observed: 23.67 ft at 9:48PM Jun 28, 2020Observed: 23.66 ft at 10:48PM Jun 28, 2020Observed: 23.66 ft at 11:48PM Jun 28, 2020Observed: 23.66 ft at 12:49AM Jun 29, 2020Observed: 23.66 ft at 1:55AM Jun 29, 2020Observed: 23.64 ft at 2:55AM Jun 29, 2020Highest Observation: 23.69 ft at 3:48AM Jun 29, 2020Observed: 23.66 ft at 5:01AM Jun 29, 2020Observed: 23.66 ft at 5:48AM Jun 29, 2020Observed: 23.63 ft at 6:48AM Jun 29, 2020Observed: 23.62 ft at 7:48AM Jun 29, 2020Observed: 23.67 ft at 8:48AM Jun 29, 2020Observed: 23.65 ft at 9:48AM Jun 29, 2020Observed: 23.66 ft at 10:49AM Jun 29, 2020Observed: 23.64 ft at 11:48AM Jun 29, 2020Observed: 23.6 ft at 12:48PM Jun 29, 2020Observed: 23.62 ft at 1:48PM Jun 29, 2020Observed: 23.62 ft at 2:48PM Jun 29, 2020Observed: 23.63 ft at 3:48PM Jun 29, 2020Observed: 23.62 ft at 4:55PM Jun 29, 2020Observed: 23.6 ft at 5:48PM Jun 29, 2020Observed: 23.63 ft at 6:48PM Jun 29, 2020Observed: 23.65 ft at 7:48PM Jun 29, 2020Observed: 23.63 ft at 8:49PM Jun 29, 2020Observed: 23.62 ft at 9:56PM Jun 29, 2020Observed: 23.62 ft at 10:48PM Jun 29, 2020Observed: 23.64 ft at 11:49PM Jun 29, 2020Observed: 23.63 ft at 12:48AM Jun 30, 2020Observed: 23.61 ft at 1:49AM Jun 30, 2020Observed: 23.62 ft at 2:48AM Jun 30, 2020Observed: 23.62 ft at 3:48AM Jun 30, 2020Observed: 23.62 ft at 4:48AM Jun 30, 2020Observed: 23.6 ft at 5:48AM Jun 30, 2020Observed: 23.6 ft at 6:48AM Jun 30, 2020Observed: 23.6 ft at 7:48AM Jun 30, 2020Observed: 23.61 ft at 8:48AM Jun 30, 2020Observed: 23.61 ft at 9:48AM Jun 30, 2020Observed: 23.58 ft at 10:48AM Jun 30, 2020Observed: 23.57 ft at 11:48AM Jun 30, 2020Observed: 23.6 ft at 12:48PM Jun 30, 2020Observed: 23.61 ft at 1:48PM Jun 30, 2020Observed: 23.56 ft at 2:48PM Jun 30, 2020Observed: 23.57 ft at 3:48PM Jun 30, 2020Observed: 23.57 ft at 4:49PM Jun 30, 2020Observed: 23.57 ft at 5:48PM Jun 30, 2020Observed: 23.53 ft at 6:48PM Jun 30, 2020Observed: 23.55 ft at 7:48PM Jun 30, 2020Observed: 23.57 ft at 8:48PM Jun 30, 2020Observed: 23.52 ft at 9:48PM Jun 30, 2020Observed: 23.55 ft at 10:55PM Jun 30, 2020Observed: 23.57 ft at 11:48PM Jun 30, 2020Observed: 23.56 ft at 12:48AM Jul 01, 2020Observed: 23.57 ft at 1:48AM Jul 01, 2020Observed: 23.57 ft at 2:48AM Jul 01, 2020Observed: 23.56 ft at 3:48AM Jul 01, 2020Observed: 23.57 ft at 4:48AM Jul 01, 2020Observed: 23.57 ft at 5:48AM Jul 01, 2020Observed: 23.6 ft at 6:48AM Jul 01, 2020Observed: 23.59 ft at 7:48AM Jul 01, 2020Observed: 23.57 ft at 8:55AM Jul 01, 2020Observed: 23.55 ft at 9:55AM Jul 01, 2020Observed: 23.55 ft at 10:48AM Jul 01, 2020Observed: 23.55 ft at 11:48AM Jul 01, 2020Observed: 23.53 ft at 12:48PM Jul 01, 2020Observed: 23.52 ft at 1:48PM Jul 01, 2020Observed: 23.52 ft at 2:48PM Jul 01, 2020Observed: 23.52 ft at 3:48PM Jul 01, 2020Observed: 23.52 ft at 4:49PM Jul 01, 2020Observed: 23.46 ft at 5:55PM Jul 01, 2020Observed: 23.47 ft at 6:48PM Jul 01, 2020Observed: 23.35 ft at 7:48PM Jul 01, 2020Observed: 23.29 ft at 8:48PM Jul 01, 2020Observed: 23.18 ft at 9:48PM Jul 01, 2020Observed: 23.39 ft at 10:48PM Jul 01, 2020Observed: 23.47 ft at 11:48PM Jul 01, 2020Observed: 23.47 ft at 12:48AM Jul 02, 2020Observed: 23.47 ft at 1:49AM Jul 02, 2020Observed: 23.5 ft at 2:48AM Jul 02, 2020Observed: 23.47 ft at 3:48AM Jul 02, 2020Observed: 23.48 ft at 4:48AM Jul 02, 2020Observed: 23.52 ft at 5:48AM Jul 02, 2020Observed: 23.53 ft at 6:48AM Jul 02, 2020Observed: 23.53 ft at 7:48AM Jul 02, 2020Observed: 23.53 ft at 8:48AM Jul 02, 2020Observed: 23.52 ft at 9:48AM Jul 02, 2020Observed: 23.51 ft at 10:49AM Jul 02, 2020Observed: 23.52 ft at 11:48AM Jul 02, 2020Observed: 23.5 ft at 12:48PM Jul 02, 2020Observed: 23.51 ft at 1:48PM Jul 02, 2020Observed: 23.49 ft at 2:48PM Jul 02, 2020Observed: 23.47 ft at 3:49PM Jul 02, 2020Observed: 23.41 ft at 4:48PM Jul 02, 2020Observed: 23.4 ft at 5:48PM Jul 02, 2020Observed: 23.34 ft at 6:48PM Jul 02, 2020Observed: 23.32 ft at 7:48PM Jul 02, 2020Observed: 23.3 ft at 8:48PM Jul 02, 2020Observed: 23.23 ft at 9:48PM Jul 02, 2020Observed: 23.33 ft at 10:48PM Jul 02, 2020Observed: 23.38 ft at 11:49PM Jul 02, 2020Observed: 23.42 ft at 12:55AM Jul 03, 2020Observed: 23.43 ft at 2:01AM Jul 03, 2020Observed: 23.43 ft at 2:48AM Jul 03, 2020Observed: 23.44 ft at 3:48AM Jul 03, 2020Observed: 23.42 ft at 4:48AM Jul 03, 2020Observed: 23.47 ft at 5:48AM Jul 03, 2020Observed: 23.49 ft at 6:48AM Jul 03, 2020Observed: 23.47 ft at 7:48AM Jul 03, 2020Observed: 23.47 ft at 9:48AM Jul 03, 2020Observed: 23.47 ft at 10:48AM Jul 03, 2020Observed: 23.46 ft at 11:48AM Jul 03, 2020Observed: 23.45 ft at 12:48PM Jul 03, 2020Observed: 23.47 ft at 1:47PM Jul 03, 2020Observed: 23.45 ft at 2:48PM Jul 03, 2020Observed: 23.44 ft at 3:48PM Jul 03, 2020Observed: 23.41 ft at 4:48PM Jul 03, 2020Observed: 23.35 ft at 5:48PM Jul 03, 2020Observed: 23.35 ft at 6:48PM Jul 03, 2020Observed: 23.31 ft at 7:48PM Jul 03, 2020Observed: 23.24 ft at 8:49PM Jul 03, 2020Observed: 23.21 ft at 9:48PM Jul 03, 2020Observed: 23.32 ft at 10:48PM Jul 03, 2020Observed: 23.39 ft at 11:48PM Jul 03, 2020Observed: 23.42 ft at 12:48AM Jul 04, 2020Observed: 23.42 ft at 1:48AM Jul 04, 2020Observed: 23.38 ft at 2:48AM Jul 04, 2020Observed: 23.45 ft at 3:48AM Jul 04, 2020Observed: 23.42 ft at 4:48AM Jul 04, 2020Observed: 23.42 ft at 5:48AM Jul 04, 2020Observed: 23.42 ft at 6:48AM Jul 04, 2020Observed: 23.41 ft at 7:48AM Jul 04, 2020Observed: 23.42 ft at 8:48AM Jul 04, 2020Observed: 23.42 ft at 9:48AM Jul 04, 2020Observed: 23.42 ft at 10:48AM Jul 04, 2020Observed: 23.4 ft at 11:48AM Jul 04, 2020Observed: 23.41 ft at 2:48PM Jul 04, 2020Observed: 23.39 ft at 3:48PM Jul 04, 2020Observed: 23.34 ft at 4:49PM Jul 04, 2020Observed: 23.29 ft at 5:48PM Jul 04, 2020Observed: 23.22 ft at 6:48PM Jul 04, 2020Observed: 23.22 ft at 7:48PM Jul 04, 2020Observed: 23.22 ft at 8:48PM Jul 04, 2020Observed: 23.12 ft at 9:48PM Jul 04, 2020Observed: 23.28 ft at 10:48PM Jul 04, 2020Observed: 23.27 ft at 11:48PM Jul 04, 2020Observed: 23.31 ft at 12:48AM Jul 05, 2020Observed: 23.36 ft at 1:48AM Jul 05, 2020Observed: 23.33 ft at 2:56AM Jul 05, 2020Observed: 23.32 ft at 3:56AM Jul 05, 2020Observed: 23.34 ft at 4:49AM Jul 05, 2020Observed: 23.35 ft at 5:48AM Jul 05, 2020Observed: 23.38 ft at 6:48AM Jul 05, 2020Observed: 23.37 ft at 7:49AM Jul 05, 2020Observed: 23.38 ft at 8:48AM Jul 05, 2020SFKA2(plotting HGIRZ) Graph Created (10:02AM Jul 5, 2020)ObservedLatest observed value: 23.38 ft at 8:48 AM AKDT 5-Jul-2020.
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About this graph
Tabular Data (UTC)
Tabular Data (AKDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Stage and discharge data do not meet quality standards of USGS gages.

NOTE: Forecasts are not available for the Koyukuk River at South Fork. Only observed stages are available for this point.

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Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:14
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Gauge LocationGauge Map Marker
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.
About This Location Collapse

Latitude: 67.019722° N, Longitude: 150.292778° 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)
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  
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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.
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Page last modified: 1-Mar-2019 12:31 AM
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