Columbia River at Longview
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.
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Observed (OBS) 04/03/2025 3:18 AM PDTOfficial Forecast (FCST) 04/02/2025 3:54 PM PDTRecord: 24 ftCATEGORY STAGE 
Major Flooding 18 ft Moderate Flooding 15 ft Minor Flooding 13.5 ft Action 12 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
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
- 19 - expect major widespread flooding of lowland areas, along with flooding of some areas in and near Longview. Water levels have historically neared the tops of several levees at this stage.
- 18 - expect major and widespread flooding of lowland areas along the Columbia from Kalama downstream to Clatskanie, including flooding of some areas in and near Longview. Water levels have historically neared the tops of some levees at this stage.
- 17 - expect flooding of most islands on the Columbia River near Longview and Rainier, along with extensive flooding of unleveed farmland, mainly on the Washington side of the river.
Gauge Info
| Coordinates | 46.1056, -122.954 |
| RFC | NWRFC |
| State | WA |
| WFO | PQR |
| County | Cowlitz |
| Data Provider(s) | |
| NOAA National Ocean Service | NOAA National Ocean Service |
| USGS | 14245300 |
Gauge Location
Recent Crests
| 1. | 13.90 ft | on 03-30-2017 |
| 2. | 13.37 ft | on 01-02-2006 |
| 3. | 13.18 ft | on 12-31-2005 |
| 4. | 18.40 ft | on 02-09-1996 |
| 5. | 13.01 ft | on 02-25-1986 |
Recent Crests
| 1. | 13.90 ft | on 03-30-2017 |
| 2. | 13.37 ft | on 01-02-2006 |
| 3. | 13.18 ft | on 12-31-2005 |
| 4. | 18.40 ft | on 02-09-1996 |
| 5. | 13.01 ft | on 02-25-1986 |
| 6. | 14.00 ft | on 12-15-1977 |
| 7. | 16.40 ft | on 01-19-1974 |
| 8. | 15.00 ft | on 06-12-1972 |
| 9. | 16.10 ft | on 01-31-1965 |
| 10. | 18.90 ft | on 12-25-1964 |
| 11. | 16.00 ft | on 06-12-1961 |
| 12. | 14.80 ft | on 05-23-1957 |
| 13. | 18.00 ft | on 06-08-1956 |
| 14. | 14.20 ft | on 05-23-1951 |
| 15. | 16.70 ft | on 05-26-1950 |
| 16. | 14.40 ft | on 05-18-1949 |
| 17. | 20.30 ft | on 06-06-1948 |
| 18. | 24.00 ft | on 06-07-1894 |
Historic Crests
| 1. | 24.00 ft | on 06-07-1894 |
| 2. | 20.30 ft | on 06-06-1948 |
| 3. | 18.90 ft | on 12-25-1964 |
| 4. | 18.40 ft | on 02-09-1996 |
| 5. | 18.00 ft | on 06-08-1956 |
Historic Crests
| 1. | 24.00 ft | on 06-07-1894 |
| 2. | 20.30 ft | on 06-06-1948 |
| 3. | 18.90 ft | on 12-25-1964 |
| 4. | 18.40 ft | on 02-09-1996 |
| 5. | 18.00 ft | on 06-08-1956 |
| 6. | 16.70 ft | on 05-26-1950 |
| 7. | 16.40 ft | on 01-19-1974 |
| 8. | 16.10 ft | on 01-31-1965 |
| 9. | 16.00 ft | on 06-12-1961 |
| 10. | 15.00 ft | on 06-12-1972 |
| 11. | 14.80 ft | on 05-23-1957 |
| 12. | 14.40 ft | on 05-18-1949 |
| 13. | 14.20 ft | on 05-23-1951 |
| 14. | 14.00 ft | on 12-15-1977 |
| 15. | 13.90 ft | on 03-30-2017 |
| 16. | 13.37 ft | on 01-02-2006 |
| 17. | 13.18 ft | on 12-31-2005 |
| 18. | 13.01 ft | on 02-25-1986 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 17.66 ft |
| moderate Flooding | 14.66 ft |
| minor Flooding | 13.16 ft |
| action | 11.66 ft |
| Latest Value | 5.76 ft |
| Gauge Zero | -0.34 ft |
Probability Information
No Images Available
Unique Local Info
Gage datum = -0.34 ft, NGVD29
National Ocean Service data and info
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