Station Name: TUALATIN RIVER AT OSWEGO DAM, NEAR WEST LINN, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 151 feet

Nearest Address:
967 SW Borland Rd
West Linn, OR 97068
Clackamas County

GPS Coordinates: 45.35650877, -122.6850937

Nearby Water Temperatures

Flood Warning issued March 13 at 9:45AM PDT until March 14 at 8:17AM PDT by NWS Portland OR

Effective: Fri March 13, 2026, 9:45 AM
Expires: Fri March 13, 2026, 9:45 PM

...The Flood Warning continues for the following rivers in Oregon... Johnson Creek at Sycamore affecting Clackamas and Multnomah Counties. * WHAT...Minor flooding is forecast. * WHERE...Johnson Creek at Sycamore. * WHEN...Until tomorrow morning. * IMPACTS...Above 11.0 feet, minor flooding begins along Johnson Creek between SE 92nd Street to SE 122nd Street and between Johnson Creek and SE Harold Street. * ADDITIONAL DETAILS... - At 9:00 AM PDT Friday the stage was 6.7 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will fall to 6.4 feet late this morning. It will then rise above flood stage to 11.7 feet late this evening. It will fall below flood stage just after midnight tonight. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 945 PM PDT.

Flood Watch issued March 13 at 2:12PM PDT until March 14 at 5:00PM PDT by NWS Portland OR

Effective: Fri March 13, 2026, 2:12 PM
Expires: Sat March 14, 2026, 3:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest Oregon, including the following areas, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin Valley, West Central Willamette Valley, West Columbia River Gorge I-84 Corridor and West Columbia River Gorge of Oregon above 500 ft and southwest Washington, including the following areas, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...Through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. Landslides and debris flows are possible during this flood event. People, structures, and roads located below steep slopes, in canyons, and near the mouths of canyons may be at serious risk from rapidly moving landslides. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Warning issued March 13 at 11:20PM PDT until March 14 at 11:14AM PDT by NWS Portland OR

Effective: Fri March 13, 2026, 11:20 PM
Expires: Sat March 14, 2026, 6:00 AM

...Observed flooding changed to Minor severity and increased in duration for the following rivers in Oregon... Wilson River near Tillamook affecting Tillamook County. ...The Flood Warning continues for the following rivers in Washington...Oregon... Cowlitz River at Kelso affecting Cowlitz County. Grays River at Covered Bridge near Rosburg affecting Wahkiakum County. Johnson Creek at Sycamore affecting Clackamas and Multnomah Counties. Nehalem River near Foss affecting Clatsop and Tillamook Counties. * WHAT...Minor flooding is forecast. * WHERE...Johnson Creek at Sycamore. * WHEN...Until late tomorrow morning. * IMPACTS...Above 11.0 feet, minor flooding begins along Johnson Creek between SE 92nd Street to SE 122nd Street and between Johnson Creek and SE Harold Street. * ADDITIONAL DETAILS... - At 10:30 PM PDT Friday the stage was 5.3 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will rise above flood stage to 11.1 feet early Saturday morning. It will then fall below flood stage Saturday afternoon. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued early Saturday morning at 515 AM PDT.late tonight at 500 AM PDT.