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This probabilistic forecast is issued by the Northwest River Forecast Center.

	Hydrograph			River at a Glance			Download			Probability Information Weekly Chance of Exceeding Levels Not Available Chance of Exceeding Levels During Entire Period Not Available Short-term Probabilistic Guidance (Experimental)

For official forecast click here

Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey

About this graph

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

Return to Area Map

Upstream Gauge

Downstream Gauge

Zoom Level:16

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.

	Gauge Location	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

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.

Other Real-time and/or Archive Data Sources:

U.S. Geological Survey (USGS) Data and Site Info for Concrete

Collaborative Agencies

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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