Willamette River at Portland
No watches, warnings or advisories are in effect for this area.
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 04/01/2025 4:05 PM PDTOfficial Forecast (FCST) 04/01/2025 4:19 PM PDTRecord: 33 ftLow Threshold: 1 ftCATEGORY STAGE 
Major Flooding 28 ft Moderate Flooding 24 ft Minor Flooding 18 ft Action 17 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
Gauge reading affected by ocean tides.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 30 - expect flooding of downtown Portland from Park Ave east to the Willamette and north of Burnside. Historically, Union Station begins to flood at this point and rail traffic will likely be impacted. Expect flooding of Oaks Park, along with moorages and industrial areas from Oregon City through downtown Portland into industrial NW Portland.
- 28.8 - expect the river level to reach the top of the lowest point of the downtown Portland sea-wall. Flooding of some portions of Waterfront Park is possible at this and higher stages.
- 27 - expect flooding of Front Street near the Burnside Bridge.
Gauge Location
Recent Crests
| 1. | 15.56 ft | on 04-12-2019 |
| 2. | 17.30 ft | on 03-30-2017 |
| 3. | 17.20 ft | on 06-02-2011 |
| 4. | 28.55 ft | on 02-09-1996 |
| 5. | 18.90 ft | on 02-24-1986 |
| 6. | 20.10 ft | on 02-21-1982 |
| 7. | 18.27 ft | on 12-16-1977 |
| 8. | 23.84 ft | on 01-18-1974 |
| 9. | 29.80 ft | on 12-25-1964 |
| 10. | 26.40 ft | on 06-04-1956 |
Recent Crests
| 1. | 15.56 ft | on 04-12-2019 |
| 2. | 17.30 ft | on 03-30-2017 |
| 3. | 17.20 ft | on 06-02-2011 |
| 4. | 28.55 ft | on 02-09-1996 |
| 5. | 18.90 ft | on 02-24-1986 |
| 6. | 20.10 ft | on 02-21-1982 |
| 7. | 18.27 ft | on 12-16-1977 |
| 8. | 23.84 ft | on 01-18-1974 |
| 9. | 29.80 ft | on 12-25-1964 |
| 10. | 26.40 ft | on 06-04-1956 |
| 11. | 24.80 ft | on 06-26-1950 |
| 12. | 30.00 ft | on 06-14-1948 |
| 13. | 30.00 ft | on 06-01-1948 |
| 14. | 24.80 ft | on 06-13-1933 |
| 15. | 24.40 ft | on 05-31-1928 |
| 16. | 25.30 ft | on 01-08-1923 |
| 17. | 24.30 ft | on 06-12-1921 |
| 18. | 24.00 ft | on 06-13-1913 |
| 19. | 24.00 ft | on 06-18-1903 |
| 20. | 24.20 ft | on 06-23-1899 |
| 21. | 33.00 ft | on 06-07-1894 |
| 22. | 28.70 ft | on 02-06-1890 |
| 23. | 25.70 ft | on 06-21-1887 |
| 24. | 26.20 ft | on 06-14-1882 |
| 25. | 27.30 ft | on 07-01-1880 |
| 26. | 28.20 ft | on 06-24-1876 |
Historic Crests
| 1. | 33.00 ft | on 06-07-1894 |
| 2. | 30.00 ft | on 06-14-1948 |
| 3. | 30.00 ft | on 06-01-1948 |
| 4. | 29.80 ft | on 12-25-1964 |
| 5. | 28.70 ft | on 02-06-1890 |
| 6. | 28.55 ft | on 02-09-1996 |
| 7. | 28.20 ft | on 06-24-1876 |
| 8. | 27.30 ft | on 07-01-1880 |
| 9. | 26.40 ft | on 06-04-1956 |
| 10. | 26.20 ft | on 06-14-1882 |
Historic Crests
| 1. | 33.00 ft | on 06-07-1894 |
| 2. | 30.00 ft | on 06-14-1948 |
| 3. | 30.00 ft | on 06-01-1948 |
| 4. | 29.80 ft | on 12-25-1964 |
| 5. | 28.70 ft | on 02-06-1890 |
| 6. | 28.55 ft | on 02-09-1996 |
| 7. | 28.20 ft | on 06-24-1876 |
| 8. | 27.30 ft | on 07-01-1880 |
| 9. | 26.40 ft | on 06-04-1956 |
| 10. | 26.20 ft | on 06-14-1882 |
| 11. | 25.70 ft | on 06-21-1887 |
| 12. | 25.30 ft | on 01-08-1923 |
| 13. | 24.80 ft | on 06-26-1950 |
| 14. | 24.80 ft | on 06-13-1933 |
| 15. | 24.40 ft | on 05-31-1928 |
| 16. | 24.30 ft | on 06-12-1921 |
| 17. | 24.20 ft | on 06-23-1899 |
| 18. | 24.00 ft | on 06-13-1913 |
| 19. | 24.00 ft | on 06-18-1903 |
| 20. | 23.84 ft | on 01-18-1974 |
| 21. | 20.10 ft | on 02-21-1982 |
| 22. | 18.90 ft | on 02-24-1986 |
| 23. | 18.27 ft | on 12-16-1977 |
| 24. | 17.30 ft | on 03-30-2017 |
| 25. | 17.20 ft | on 06-02-2011 |
| 26. | 15.56 ft | on 04-12-2019 |
Low Water Records
| 1. | -2.20 ft | on 12-08-1990 |
| 2. | -0.58 ft | on 07-14-2001 |
| 3. | -0.57 ft | on 10-07-2019 |
| 4. | -0.51 ft | on 10-10-2001 |
| 5. | -0.44 ft | on 07-15-2001 |
| 6. | -0.43 ft | on 09-21-2003 |
| 7. | -0.40 ft | on 09-26-2005 |
| 8. | -0.35 ft | on 10-12-2001 |
| 9. | -0.35 ft | on 09-08-2001 |
| 10. | -0.31 ft | on 10-07-2023 |
Low Water Records
| 1. | -2.20 ft | on 12-08-1990 |
| 2. | -0.58 ft | on 07-14-2001 |
| 3. | -0.57 ft | on 10-07-2019 |
| 4. | -0.51 ft | on 10-10-2001 |
| 5. | -0.44 ft | on 07-15-2001 |
| 6. | -0.43 ft | on 09-21-2003 |
| 7. | -0.40 ft | on 09-26-2005 |
| 8. | -0.35 ft | on 10-12-2001 |
| 9. | -0.35 ft | on 09-08-2001 |
| 10. | -0.31 ft | on 10-07-2023 |
| 11. | -0.29 ft | on 09-20-2003 |
| 12. | -0.28 ft | on 09-10-2016 |
| 13. | -0.27 ft | on 10-24-2001 |
| 14. | -0.25 ft | on 09-28-2005 |
| 15. | -0.24 ft | on 11-04-2007 |
| 16. | -0.23 ft | on 10-30-2006 |
| 17. | -0.22 ft | on 09-09-2023 |
| 18. | -0.22 ft | on 09-24-2023 |
| 19. | -0.20 ft | on 09-17-2006 |
| 20. | -0.20 ft | on 09-06-2010 |
| 21. | -0.18 ft | on 10-02-2002 |
| 22. | -0.13 ft | on 09-21-2007 |
| 23. | -0.10 ft | on 09-23-2008 |
| 24. | 0.00 ft | on 10-24-2023 |
| 25. | 0.00 ft | on 09-08-2007 |
| 26. | 0.25 ft | on 09-06-2022 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 29.55 ft |
| moderate Flooding | 25.55 ft |
| minor Flooding | 19.55 ft |
| action | 18.55 ft |
| Latest Value | 10.89 ft |
| Gauge Zero | 1.55 ft |
Probability Information
No Images Available
Unique Local Info
Low Water Alerts are issued for stages below 1.0'
10-day Forecast/Trend, Northwest River Forecast Center
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.
Resources
Hydrologic Resource Links
- River Forecast Centers
- Text Products
- Past Precipitation
- Forecast Precipitation
- Text Table Temp & Precip Forecasts
- 3-Day Detailed Precip Forecast
- 10-Day Temp & Precip Outlook
- Lewis Dams - USGS data (scroll down to Lewis basin)
- Lewis Reservoirs Summary
- Lower Columbia Reservoir and River conditions
- USACE DataQuery
- 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
- USGS Oregon river levels
- USGS Washington river levels