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Hydrograph River at a Glance Download
Skagit River near Concrete Stage (ft)Flow (kcfs)Observed: 15.81 ft at 10:30PM Jan 28, 2023Observed: 15.81 ft at 10:45PM Jan 28, 2023Observed: 15.8 ft at 11:00PM Jan 28, 2023Observed: 15.79 ft at 11:15PM Jan 28, 2023Observed: 15.77 ft at 11:30PM Jan 28, 2023Observed: 15.79 ft at 11:45PM Jan 28, 2023Observed: 15.79 ft at 12:00AM Jan 29, 2023Observed: 15.8 ft at 12:15AM Jan 29, 2023Observed: 15.78 ft at 12:30AM Jan 29, 2023Observed: 15.77 ft at 12:45AM Jan 29, 2023Observed: 15.78 ft at 1:00AM Jan 29, 2023Observed: 15.79 ft at 1:15AM Jan 29, 2023Observed: 15.78 ft at 1:30AM Jan 29, 2023Observed: 15.77 ft at 1:45AM Jan 29, 2023Observed: 15.78 ft at 2:00AM Jan 29, 2023Observed: 15.76 ft at 2:15AM Jan 29, 2023Observed: 15.77 ft at 2:30AM Jan 29, 2023Observed: 15.76 ft at 2:45AM Jan 29, 2023Observed: 15.78 ft at 3:00AM Jan 29, 2023Observed: 15.77 ft at 3:15AM Jan 29, 2023Observed: 15.78 ft at 3:30AM Jan 29, 2023Observed: 15.77 ft at 3:45AM Jan 29, 2023Observed: 15.76 ft at 4:00AM Jan 29, 2023Observed: 15.78 ft at 4:15AM Jan 29, 2023Observed: 15.75 ft at 4:30AM Jan 29, 2023Observed: 15.76 ft at 4:45AM Jan 29, 2023Observed: 15.75 ft at 5:00AM Jan 29, 2023Observed: 15.75 ft at 5:15AM Jan 29, 2023Observed: 15.77 ft at 5:30AM Jan 29, 2023Observed: 15.77 ft at 5:45AM Jan 29, 2023Observed: 15.77 ft at 6:00AM Jan 29, 2023Observed: 15.77 ft at 6:15AM Jan 29, 2023Observed: 15.77 ft at 6:30AM Jan 29, 2023Observed: 15.75 ft at 6:45AM Jan 29, 2023Observed: 15.76 ft at 7:00AM Jan 29, 2023Observed: 15.76 ft at 7:15AM Jan 29, 2023Observed: 15.75 ft at 7:30AM Jan 29, 2023Observed: 15.74 ft at 7:45AM Jan 29, 2023Observed: 15.74 ft at 8:00AM Jan 29, 2023Observed: 15.74 ft at 8:15AM Jan 29, 2023Observed: 15.74 ft at 8:30AM Jan 29, 2023Observed: 15.73 ft at 8:45AM Jan 29, 2023Observed: 15.75 ft at 9:00AM Jan 29, 2023Observed: 15.74 ft at 9:15AM Jan 29, 2023Observed: 15.73 ft at 9:30AM Jan 29, 2023Observed: 15.74 ft at 9:45AM Jan 29, 2023Observed: 15.74 ft at 10:00AM Jan 29, 2023Observed: 15.72 ft at 10:15AM Jan 29, 2023Observed: 15.73 ft at 10:30AM Jan 29, 2023Observed: 15.75 ft at 10:45AM Jan 29, 2023Observed: 15.73 ft at 11:00AM Jan 29, 2023Observed: 15.72 ft at 11:15AM Jan 29, 2023Observed: 15.73 ft at 11:30AM Jan 29, 2023Observed: 15.73 ft at 11:45AM Jan 29, 2023Observed: 15.72 ft at 12:00PM Jan 29, 2023Observed: 15.74 ft at 12:15PM Jan 29, 2023Observed: 15.71 ft at 12:30PM Jan 29, 2023Observed: 15.74 ft at 12:45PM Jan 29, 2023Observed: 15.72 ft at 1:00PM Jan 29, 2023Observed: 15.72 ft at 1:15PM Jan 29, 2023Observed: 15.73 ft at 1:30PM Jan 29, 2023Observed: 15.71 ft at 1:45PM Jan 29, 2023Observed: 15.71 ft at 2:00PM Jan 29, 2023Observed: 15.73 ft at 2:15PM Jan 29, 2023Observed: 15.72 ft at 2:30PM Jan 29, 2023Observed: 15.78 ft at 2:45PM Jan 29, 2023Observed: 15.81 ft at 3:00PM Jan 29, 2023Observed: 15.84 ft at 3:15PM Jan 29, 2023Observed: 15.9 ft at 3:30PM Jan 29, 2023Observed: 15.97 ft at 3:45PM Jan 29, 2023Observed: 16.04 ft at 4:00PM Jan 29, 2023Observed: 16.07 ft at 4:15PM Jan 29, 2023Observed: 16.15 ft at 4:30PM Jan 29, 2023Observed: 16.12 ft at 4:45PM Jan 29, 2023Observed: 16.15 ft at 5:00PM Jan 29, 2023Observed: 16.19 ft at 5:15PM Jan 29, 2023Observed: 16.2 ft at 5:30PM Jan 29, 2023Observed: 16.21 ft at 5:45PM Jan 29, 2023Observed: 16.22 ft at 6:00PM Jan 29, 2023Observed: 16.21 ft at 6:15PM Jan 29, 2023Observed: 16.24 ft at 6:30PM Jan 29, 2023Observed: 16.23 ft at 6:45PM Jan 29, 2023Observed: 16.24 ft at 7:00PM Jan 29, 2023Observed: 16.24 ft at 7:15PM Jan 29, 2023Observed: 16.25 ft at 7:30PM Jan 29, 2023Observed: 16.24 ft at 7:45PM Jan 29, 2023Observed: 16.26 ft at 8:00PM Jan 29, 2023Observed: 16.28 ft at 8:15PM Jan 29, 2023Observed: 16.25 ft at 8:30PM Jan 29, 2023Observed: 16.24 ft at 8:45PM Jan 29, 2023Observed: 16.27 ft at 9:00PM Jan 29, 2023Observed: 16.25 ft at 9:15PM Jan 29, 2023Observed: 16.25 ft at 9:30PM Jan 29, 2023Observed: 16.24 ft at 9:45PM Jan 29, 2023Observed: 16.27 ft at 10:00PM Jan 29, 2023Observed: 16.25 ft at 10:15PM Jan 29, 2023Observed: 16.28 ft at 10:30PM Jan 29, 2023Observed: 16.26 ft at 10:45PM Jan 29, 2023Observed: 16.27 ft at 11:00PM Jan 29, 2023Observed: 16.26 ft at 11:15PM Jan 29, 2023Observed: 16.3 ft at 11:30PM Jan 29, 2023Observed: 16.28 ft at 11:45PM Jan 29, 2023Observed: 16.27 ft at 12:00AM Jan 30, 2023Observed: 16.27 ft at 12:15AM Jan 30, 2023Observed: 16.28 ft at 12:30AM Jan 30, 2023Observed: 16.29 ft at 12:45AM Jan 30, 2023Observed: 16.26 ft at 1:00AM Jan 30, 2023Observed: 16.27 ft at 1:15AM Jan 30, 2023Observed: 16.29 ft at 1:30AM Jan 30, 2023Observed: 16.27 ft at 1:45AM Jan 30, 2023Observed: 16.29 ft at 2:00AM Jan 30, 2023Observed: 16.27 ft at 2:15AM Jan 30, 2023Observed: 16.26 ft at 2:30AM Jan 30, 2023Observed: 16.26 ft at 2:45AM Jan 30, 2023Observed: 16.29 ft at 3:00AM Jan 30, 2023Observed: 16.28 ft at 3:15AM Jan 30, 2023Observed: 16.26 ft at 3:30AM Jan 30, 2023Observed: 16.27 ft at 3:45AM Jan 30, 2023Observed: 16.26 ft at 4:00AM Jan 30, 2023Observed: 16.32 ft at 4:15AM Jan 30, 2023Observed: 16.6 ft at 4:30AM Jan 30, 2023Observed: 16.91 ft at 4:45AM Jan 30, 2023Observed: 17.03 ft at 5:00AM Jan 30, 2023Observed: 17.07 ft at 5:15AM Jan 30, 2023Observed: 17.09 ft at 5:30AM Jan 30, 2023Observed: 17.07 ft at 5:45AM Jan 30, 2023Observed: 17.08 ft at 6:00AM Jan 30, 2023Highest Observation: 17.1 ft at 6:15AM Jan 30, 2023Observed: 17.06 ft at 6:30AM Jan 30, 2023Observed: 17.06 ft at 6:45AM Jan 30, 2023Observed: 17.06 ft at 7:00AM Jan 30, 2023Observed: 17.01 ft at 7:15AM Jan 30, 2023Observed: 17.04 ft at 7:30AM Jan 30, 2023Observed: 17.02 ft at 7:45AM Jan 30, 2023Observed: 17.02 ft at 8:00AM Jan 30, 2023Observed: 16.98 ft at 8:15AM Jan 30, 2023Observed: 17 ft at 8:30AM Jan 30, 2023Observed: 16.98 ft at 8:45AM Jan 30, 2023Observed: 17 ft at 9:00AM Jan 30, 2023Observed: 16.98 ft at 9:15AM Jan 30, 2023Observed: 16.98 ft at 9:30AM Jan 30, 2023Observed: 17 ft at 9:45AM Jan 30, 2023Observed: 16.96 ft at 10:00AM Jan 30, 2023Observed: 16.97 ft at 10:15AM Jan 30, 2023Observed: 16.97 ft at 10:30AM Jan 30, 2023Observed: 16.98 ft at 10:45AM Jan 30, 2023Observed: 16.96 ft at 11:00AM Jan 30, 2023Observed: 16.99 ft at 11:15AM Jan 30, 2023Observed: 16.95 ft at 11:30AM Jan 30, 2023Observed: 16.97 ft at 11:45AM Jan 30, 2023Observed: 16.99 ft at 12:00PM Jan 30, 2023Observed: 17.02 ft at 12:15PM Jan 30, 2023Observed: 17.01 ft at 12:30PM Jan 30, 2023Observed: 16.98 ft at 12:45PM Jan 30, 2023Observed: 16.98 ft at 1:00PM Jan 30, 2023Observed: 16.97 ft at 1:15PM Jan 30, 2023Observed: 16.98 ft at 1:30PM Jan 30, 2023Observed: 16.97 ft at 1:45PM Jan 30, 2023Observed: 16.97 ft at 2:00PM Jan 30, 2023Observed: 16.96 ft at 2:15PM Jan 30, 2023Observed: 16.94 ft at 2:30PM Jan 30, 2023Observed: 16.92 ft at 2:45PM Jan 30, 2023Observed: 16.91 ft at 3:00PM Jan 30, 2023Observed: 16.86 ft at 3:15PM Jan 30, 2023Observed: 16.83 ft at 3:30PM Jan 30, 2023Observed: 16.74 ft at 3:45PM Jan 30, 2023Observed: 16.75 ft at 4:00PM Jan 30, 2023Observed: 16.71 ft at 4:15PM Jan 30, 2023Observed: 16.67 ft at 4:30PM Jan 30, 2023Observed: 16.63 ft at 4:45PM Jan 30, 2023Observed: 16.58 ft at 5:00PM Jan 30, 2023Observed: 16.57 ft at 5:15PM Jan 30, 2023Observed: 16.5 ft at 5:30PM Jan 30, 2023Observed: 16.47 ft at 5:45PM Jan 30, 2023Observed: 16.46 ft at 6:00PM Jan 30, 2023Observed: 16.47 ft at 6:15PM Jan 30, 2023Observed: 16.48 ft at 6:30PM Jan 30, 2023Observed: 16.48 ft at 6:45PM Jan 30, 2023Observed: 16.47 ft at 7:00PM Jan 30, 2023Observed: 16.46 ft at 7:15PM Jan 30, 2023Observed: 16.46 ft at 7:30PM Jan 30, 2023Observed: 16.47 ft at 7:45PM Jan 30, 2023Observed: 16.45 ft at 8:00PM Jan 30, 2023Observed: 16.45 ft at 8:15PM Jan 30, 2023Observed: 16.49 ft at 8:30PM Jan 30, 2023Observed: 16.47 ft at 8:45PM Jan 30, 2023Observed: 16.51 ft at 9:00PM Jan 30, 2023Observed: 16.49 ft at 9:15PM Jan 30, 2023Observed: 16.48 ft at 9:30PM Jan 30, 2023Observed: 16.47 ft at 9:45PM Jan 30, 2023Observed: 16.48 ft at 10:00PM Jan 30, 2023Forecast: 16.76 ft 4:00AM Jan 31, 2023Highest Forecast: 17.52 ft 10:00AM Jan 31, 2023Forecast: 17 ft 4:00PM Jan 31, 2023Forecast: 16.21 ft 10:00PM Jan 31, 2023Forecast: 15.94 ft 4:00AM Feb 01, 2023Forecast: 15.81 ft 10:00AM Feb 01, 2023Forecast: 15.79 ft 4:00PM Feb 01, 2023Forecast: 15.78 ft 10:00PM Feb 01, 2023Forecast: 15.92 ft 4:00AM Feb 02, 2023Forecast: 15.93 ft 10:00AM Feb 02, 2023Forecast: 15.94 ft 4:00PM Feb 02, 2023Forecast: 15.95 ft 10:00PM Feb 02, 2023Forecast: 16.73 ft 4:00AM Feb 03, 2023Forecast: 16.76 ft 10:00AM Feb 03, 2023Forecast: 16.85 ft 4:00PM Feb 03, 2023Forecast: 17.01 ft 10:00PM Feb 03, 2023Forecast: 15.94 ft 4:00AM Feb 04, 2023Forecast: 16.19 ft 10:00AM Feb 04, 2023Forecast: 16.35 ft 4:00PM Feb 04, 2023Forecast: 16.4 ft 10:00PM Feb 04, 2023Forecast: 16.39 ft 4:00AM Feb 05, 2023Forecast: 16.34 ft 10:00AM Feb 05, 2023Forecast: 16.3 ft 4:00PM Feb 05, 2023Forecast: 16.26 ft 10:00PM Feb 05, 2023Forecast: 16.24 ft 4:00AM Feb 06, 2023Forecast: 16.21 ft 10:00AM Feb 06, 2023Forecast: 16.16 ft 4:00PM Feb 06, 2023Forecast: 16.1 ft 10:00PM Feb 06, 2023USGS--Water Resources of the United StatesCONW1(plotting HGIRG) Graph Created (10:20PM Jan 30, 2023)ObservedForecast (issued 2:51PM Jan 30)Latest observed value: 16.48 ft at 10:00 PM PST 30-Jan-2023. Flood Stage is 28 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Skagit River near Concrete are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Mt Vernon
Flood Categories (in feet)
Major Flood Stage: 32.5
Moderate Flood Stage: 30
Flood Stage: 28
Action Stage: 24.5
Low Stage (in feet): 0

Historic Crests
(1) 69.30 ft on 01/01/1815
(2) 42.21 ft on 10/21/2003
(3) 41.57 ft on 11/29/1995
(4) 40.80 ft on 11/27/1949
(5) 40.20 ft on 11/10/1990
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 29.49 ft on 11/29/2021 (P)
(2) 38.93 ft on 11/15/2021 (P)
(3) 29.44 ft on 11/13/2021 (P)
(4) 31.58 ft on 10/29/2021 (P)
(5) 30.66 ft on 02/02/2020 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
40 the Skagit River will cause severe near record flooding from Rockport downstream through Sedro Woolley. Deep and swift flood waters will inundate and damage roads...farms and business and residential areas...especially Cape Horn...Hamilton...and Thunderbird. Cockreham Island...the Nookachamps and the Sterling areas will be inundated. Levees east of Sedro Woolley may be damaged. This level at this location on the Skagit corresponds to a Phase 1 flood in the Skagit County flood system.
37 the Skagit River will cause major flooding from Rockport downstream through Sedro Woolley. Deep and swift flood waters will inundate many roads...farms...and some business and residential areas especially Cape Horn...Hamilton...and Thunderbird. Cockreham Island...the Nookachamps area and the Sterling area will be inundated. Levees east of Sedro Woolley may be damaged. This level for this location on the Skagit corresponds to a Phase 1 flood in the Skagit County flood system.
32.5 the Skagit River will cause flooding from Rockport downstream through Sedro Woolley. Flood waters will inundate low areas near the river...roads...and several residential areas mainly Cape Horn...Hamilton and Thunderbird. Some water will flow onto Cockreham Island and into the Nookachamps and Sterling areas. Flooding will also occur in headwaters...tributaries...and other streams within the Skagit Basin. This level for this location corresponds to a Phase 2 flood in the Skagit County flood system.
28 the Skagit River will flood low areas and sections of roads along the river from Rockport downstream to Sedro Woolley. This level for this location on the Skagit corresponds to a Phase 3 flood in the Skagit County flood system.
About This Location Collapse

Latitude: 48.524444° N, Longitude: 121.769722° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 28 ft 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 133.96 ft 161.96 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 130.0 ft 158.0 ft 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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Page last modified: 2-Nov-2020 7:27 PM
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