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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office Portland, OR Northwest River Forecast Center
Hydrograph River at a Glance Download
Johnson Creek at Milwaukie Stage (ft)Flow (cfs)Observed: 24.5 ft at 3:00AM May 22, 2013Observed: 24.48 ft at 3:30AM May 22, 2013Observed: 24.45 ft at 4:00AM May 22, 2013Observed: 24.43 ft at 4:30AM May 22, 2013Observed: 24.41 ft at 5:00AM May 22, 2013Observed: 24.4 ft at 5:30AM May 22, 2013Observed: 24.38 ft at 6:00AM May 22, 2013Observed: 24.37 ft at 6:30AM May 22, 2013Observed: 24.36 ft at 7:00AM May 22, 2013Observed: 24.34 ft at 7:30AM May 22, 2013Observed: 24.34 ft at 8:00AM May 22, 2013Observed: 24.33 ft at 8:30AM May 22, 2013Observed: 24.33 ft at 9:00AM May 22, 2013Observed: 24.34 ft at 9:30AM May 22, 2013Observed: 24.34 ft at 10:00AM May 22, 2013Observed: 24.35 ft at 10:30AM May 22, 2013Observed: 24.37 ft at 11:00AM May 22, 2013Observed: 24.36 ft at 11:30AM May 22, 2013Observed: 24.37 ft at 12:00PM May 22, 2013Observed: 24.37 ft at 12:30PM May 22, 2013Observed: 24.37 ft at 1:00PM May 22, 2013Observed: 24.37 ft at 1:30PM May 22, 2013Observed: 24.37 ft at 2:00PM May 22, 2013Observed: 24.39 ft at 2:30PM May 22, 2013Observed: 24.4 ft at 3:00PM May 22, 2013Observed: 24.39 ft at 3:30PM May 22, 2013Observed: 24.4 ft at 4:00PM May 22, 2013Observed: 24.39 ft at 4:30PM May 22, 2013Observed: 24.39 ft at 5:00PM May 22, 2013Observed: 24.39 ft at 5:30PM May 22, 2013Observed: 24.41 ft at 6:00PM May 22, 2013Observed: 24.42 ft at 6:30PM May 22, 2013Observed: 24.45 ft at 7:00PM May 22, 2013Observed: 24.53 ft at 7:30PM May 22, 2013Observed: 24.55 ft at 8:00PM May 22, 2013Observed: 24.6 ft at 8:30PM May 22, 2013Observed: 24.66 ft at 9:00PM May 22, 2013Observed: 24.75 ft at 9:30PM May 22, 2013Observed: 24.84 ft at 10:00PM May 22, 2013Observed: 24.85 ft at 10:30PM May 22, 2013Observed: 24.94 ft at 11:00PM May 22, 2013Observed: 24.98 ft at 11:30PM May 22, 2013Observed: 25.06 ft at 12:00AM May 23, 2013Observed: 25.09 ft at 12:30AM May 23, 2013Observed: 25.22 ft at 1:00AM May 23, 2013Observed: 25.33 ft at 1:30AM May 23, 2013Observed: 25.41 ft at 2:00AM May 23, 2013Observed: 25.55 ft at 2:30AM May 23, 2013Observed: 25.58 ft at 3:00AM May 23, 2013Observed: 25.58 ft at 3:30AM May 23, 2013Observed: 25.62 ft at 4:00AM May 23, 2013Observed: 25.65 ft at 4:30AM May 23, 2013Observed: 25.71 ft at 5:00AM May 23, 2013Observed: 25.79 ft at 5:30AM May 23, 2013Observed: 25.91 ft at 6:00AM May 23, 2013Observed: 26.01 ft at 6:30AM May 23, 2013Observed: 26.08 ft at 7:00AM May 23, 2013Observed: 26.1 ft at 7:30AM May 23, 2013Highest Observation: 26.11 ft at 8:00AM May 23, 2013Observed: 26.1 ft at 8:30AM May 23, 2013Observed: 26.08 ft at 9:00AM May 23, 2013Observed: 26.04 ft at 9:30AM May 23, 2013Observed: 25.97 ft at 10:00AM May 23, 2013Observed: 25.92 ft at 10:30AM May 23, 2013Observed: 25.87 ft at 11:00AM May 23, 2013Observed: 25.82 ft at 11:30AM May 23, 2013Observed: 25.75 ft at 12:00PM May 23, 2013Observed: 25.7 ft at 12:30PM May 23, 2013Observed: 25.66 ft at 1:00PM May 23, 2013Observed: 25.62 ft at 1:30PM May 23, 2013Observed: 25.57 ft at 2:00PM May 23, 2013Observed: 25.53 ft at 2:30PM May 23, 2013Observed: 25.49 ft at 3:00PM May 23, 2013Observed: 25.45 ft at 3:30PM May 23, 2013Observed: 25.42 ft at 4:00PM May 23, 2013Observed: 25.37 ft at 4:30PM May 23, 2013Observed: 25.33 ft at 5:00PM May 23, 2013Observed: 25.27 ft at 5:30PM May 23, 2013Observed: 25.22 ft at 6:00PM May 23, 2013Observed: 25.2 ft at 6:30PM May 23, 2013Observed: 25.18 ft at 7:00PM May 23, 2013Observed: 25.17 ft at 7:30PM May 23, 2013Observed: 25.19 ft at 8:00PM May 23, 2013Observed: 25.19 ft at 8:30PM May 23, 2013Observed: 25.17 ft at 9:00PM May 23, 2013Observed: 25.15 ft at 9:30PM May 23, 2013Observed: 25.14 ft at 10:00PM May 23, 2013Observed: 25.12 ft at 10:30PM May 23, 2013Observed: 25.1 ft at 11:00PM May 23, 2013Observed: 25.08 ft at 11:30PM May 23, 2013Observed: 25.08 ft at 12:00AM May 24, 2013Observed: 25.09 ft at 12:30AM May 24, 2013Observed: 25.11 ft at 1:00AM May 24, 2013Observed: 25.13 ft at 1:30AM May 24, 2013Observed: 25.15 ft at 2:00AM May 24, 2013Observed: 25.16 ft at 2:30AM May 24, 2013Observed: 25.16 ft at 3:00AM May 24, 2013Observed: 25.17 ft at 3:30AM May 24, 2013Observed: 25.17 ft at 4:00AM May 24, 2013Observed: 25.22 ft at 4:30AM May 24, 2013Observed: 25.25 ft at 5:00AM May 24, 2013Observed: 25.25 ft at 5:30AM May 24, 2013Observed: 25.27 ft at 6:00AM May 24, 2013Observed: 25.29 ft at 6:30AM May 24, 2013Observed: 25.27 ft at 7:00AM May 24, 2013Observed: 25.25 ft at 7:30AM May 24, 2013Observed: 25.23 ft at 8:00AM May 24, 2013Observed: 25.24 ft at 8:30AM May 24, 2013Observed: 25.26 ft at 9:00AM May 24, 2013Observed: 25.29 ft at 9:30AM May 24, 2013Observed: 25.36 ft at 10:00AM May 24, 2013Observed: 25.43 ft at 10:30AM May 24, 2013Observed: 25.48 ft at 11:00AM May 24, 2013Observed: 25.5 ft at 11:30AM May 24, 2013Observed: 25.52 ft at 12:00PM May 24, 2013Observed: 25.49 ft at 12:30PM May 24, 2013Observed: 25.47 ft at 1:00PM May 24, 2013Observed: 25.46 ft at 1:30PM May 24, 2013Observed: 25.46 ft at 2:00PM May 24, 2013Observed: 25.45 ft at 2:30PM May 24, 2013Observed: 25.44 ft at 3:00PM May 24, 2013Observed: 25.42 ft at 3:30PM May 24, 2013Observed: 25.41 ft at 4:00PM May 24, 2013Observed: 25.38 ft at 4:30PM May 24, 2013Observed: 25.37 ft at 5:00PM May 24, 2013Observed: 25.33 ft at 5:30PM May 24, 2013Observed: 25.27 ft at 6:00PM May 24, 2013Observed: 25.25 ft at 6:30PM May 24, 2013Observed: 25.23 ft at 7:00PM May 24, 2013Observed: 25.2 ft at 7:30PM May 24, 2013Observed: 25.19 ft at 8:00PM May 24, 2013Observed: 25.17 ft at 8:30PM May 24, 2013Observed: 25.16 ft at 9:00PM May 24, 2013Observed: 25.12 ft at 9:30PM May 24, 2013Observed: 25.11 ft at 10:00PM May 24, 2013Observed: 25.09 ft at 10:30PM May 24, 2013Observed: 25.09 ft at 11:00PM May 24, 2013Observed: 25.08 ft at 11:30PM May 24, 2013Observed: 25.08 ft at 12:00AM May 25, 2013Observed: 25.1 ft at 12:30AM May 25, 2013Observed: 25.1 ft at 1:00AM May 25, 2013Observed: 25.11 ft at 1:30AM May 25, 2013USGS--Water Resources of the United StatesMIWO3(plotting HGIRG) Graph Created (2:33AM May 25, 2013)ObservedLatest observed value: 25.11 ft at 1:30 AM PDT 25-May-2013.
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NOTE: Forecasts for the Johnson Creek at Milwaukie are issued routinely year-round.
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Upstream Gauge - near Sycamore Upstream Gauge Downstream Gauge Downstream Gauge - at Portland
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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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Latitude: 45.453333° N, Longitude: 122.643333° 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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