Search by city or zip code. Press enter or select the go button to submit request
Local weather forecast by
What is AHPS?
Weather Forecast Office Portland, OR
Northwest River Forecast Center
River at a Glance
Auto Refresh is OFF
About this graph
Tabular Data (UTC)
Tabular Data (PDT)
NOTE: Gauge reading affected by ocean tides.
Forecasts for the Columbia River at Vancouver are issued routinely year-round.
Scale to Flood Categories
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:
Moderate Flood Stage:
(1) 31.00 ft on 06/13/1948
(2) 30.80 ft on 06/01/1948
(3) 27.70 ft on 12/25/1964
(4) 27.60 ft on 06/04/1956
(5) 27.20 ft on 02/09/1996
Show More Historical Crests
: Preliminary values subject to further review.
Low Water Records
(1) -1.20 ft on 01/07/1937
(2) -1.10 ft on 11/08/1936
(3) -0.80 ft on 07/30/1978
(4) -0.80 ft on 07/24/1989
(5) -0.74 ft on 07/14/2001
Show More Low Water Records
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
Above 34.O ft, Expect flooding of much of downtown Vancouver, along with major flooding along the Columbia River from Vancouver downstream to Woodland along the Washington side and Portland and Sauvie Island on the Oregon side. Some lower levees may be overtopped.
Above 31.O ft, Expect major flooding. Overtopping of some lower levees is possible. Expect widespread inundation along the Columbia from Vancouver downstream to Woodland on the Washington side and Portland and Sauvie Island on the Oregon side. Tributary rivers will be backed up. Port operations and ship traffic will be affected.
Above 30 ft, Expect widespread flood inundation along the Columbia from Vancouver downstream to Woodland. Numerous islands and sloughs on the Columbia upstream and downstream of the I-5 bridge are flooded. Many industries along the river have historically ceased operations at this level.
Above 27 ft, Expect widespread flooding of low lying farmland, islands on the river, and sloughs in the Portland and Vancouver area. Historically, river traffic has been halted to prevent water from overtopping the lowest dikes along the river.
Above 24 ft, Expect numerous sloughs to begin flooding in the Portland and Vancouver area. Numerous islands on the Columbia river both upstream and downstream from the Interstate Bridge have historically begun to flood at this point. Also expect flooding of parks and lowland areas near the Sandy River confluence above this level.
Above 20 ft, Expect widespread flooding of unleveed lowland and agricultural land, along with flooding of the access road under the north end of the Interstate Bridge. Islands on the Columbia downstream from the Interstate Bridge are threatened above this level. Access to parks, trails, and some house-boat communities in and near Portland and Vancouver will be impacted.
Above 18 ft, Expect flooding of unleveed lowland, pasture, and farmland to begin. The main areas impacted have historically been from Sauvies Island downstream to Woodland. There will also be some inundation of parks and trails along the Columbia in and near Vancouver and Portland.
Above 17.0 feet, Expect flooding of some lowland access roads, parking areas, and trails on Sauvie Island, around vancouver lake, and near downtown Vancouver. Access to some house-boat communities is impaired. Recreation and camping areas at Cottonwood Beach near Washougal and on Government Island are impacted.
Above 16 ft, Expect flooding of some islands and low areas, with minor impacts for parks and trails along the river.
About This Location
Latitude: 45.631389° N, Longitude: 122.696389° W, Horizontal Datum: NAD83/WGS84
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
Older USGS topographic maps, NGVD29 benchmarks
Older USGS topographic maps, MSL benchmarks
Low Water Alerts are issued for stages below 1.0'.
This gage replaced VANW1 as the river forecast location for the Columbia River at Vancouver.
Archived/Historical Data at USACE DataQuery
Archived/Historical Data at USACE DataQuery for VANW1 old gauge
10-day Forecast/Trend, Northwest River Forecast Center
River Forecast Centers
River Stage Summary
Text Table Temp & Precip Forecasts
3-Day Detailed Precip Forecast
10-Day Temp & Precip Outlook
Lewis River Reservoir Data - updated hourly
Lower Columbia Reservoir and River conditions
COE real-time and archived data
USGS WaterWatch Oregon
USGS WaterWatch Washington
USGS River Temperatures & Water Quality Oregon
USGS River Temperatures & Water Quality Washington
Oregon Water Resources Dept - Surface Water Data
NWS Precipitation and River Forecasting
AHPS Iframes for Developers
Mobile iNWS for emergency management
AHPS Web Brochure
NRCS SNOTEL data map interface
Willamette Valley Reservoirs
USBR PacNW Reservoirs
Oregon Drought Information
Nationa Drought Information
USGS Oregon Water Science Center
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
National Weather Service
Portland Weather Forecast Office
5241 NE 122nd Avenue
Portland, OR 97230-1089
Page last modified: 27-Aug-2014 7:09 PM