Station Name: JOHNSON CREEK AT MILWAUKIE, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 36 feet

Nearest Address:
2008 SE Milport Rd
Milwaukie, OR 97222
Clackamas County

GPS Coordinates: 45.452897, -122.6431496

Nearby Water Temperatures

Flood Warning issued March 12 at 4:44PM PDT until March 14 at 1:12PM PDT by NWS Portland OR

Effective: Thu March 12, 2026, 4:44 PM
Expires: Fri March 13, 2026, 11:00 AM

...The Flood Warning is extended 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 early Saturday afternoon. * IMPACTS...Above 13.0 feet, expect flooding to begin at numerous locations along Johnson Creek. Evacuations of several homes have historically taken place at this and higher stages. * ADDITIONAL DETAILS... - At 4:30 PM PDT Thursday the stage was 10.8 feet. - Bankfull stage is 10.0 feet. - Forecast...The river will briefly rise above flood stage to 11.2 feet late this afternoon. It will then fall below flood stage this evening to 8.9 feet late tonight. Additional rainfall on Friday will cause it to again rise above flood stage again tomorrow afternoon to 13.0 feet by late tomorrow evening. It will then fall below flood stage again Saturday morning as rainfall ends. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by Friday morning at 1100 AM PDT.

Flood Watch issued March 12 at 3:56PM PDT until March 14 at 5:00PM PDT by NWS Portland OR

Effective: Thu March 12, 2026, 3:56 PM
Expires: Fri March 13, 2026, 5:30 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.

Avalanche Warning issued March 12 at 6:53PM PDT by NWS Portland OR

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu March 12, 2026, 6:53 PM
Expires: Fri March 13, 2026, 6:30 PM

AVWPQR The following message is transmitted at the request of the Northwest Avalanche Center. ...The Northwest Avalanche Center in Seattle has issued an Avalanche Warning... * WHAT...A very dangerous natural avalanche cycle continues as heavy precipitation, rising snow levels, and extreme winds impact the region. Very large natural avalanches are likely and may run long distances into low-elevation canyon runouts. * WHERE...Areas near Mt Hood. * WHEN...In effect from Thu 18:30 PDT to Fri 18:30 PDT. * IMPACTS...Very large natural avalanches are expected. These will be more than enough to bury, injure, and kill backcountry travelers. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Avoid all areas where avalanches can start, run, or stop. This includes steep alpine slopes, sparsely forested slopes, and winding canyong runouts with small trees. Consult https://www.nwac.us/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.

Flood Warning issued March 13 at 3:46AM PDT until March 13 at 6:00AM PDT by NWS Portland OR

Effective: Fri March 13, 2026, 3:46 AM
Expires: Fri March 13, 2026, 6:00 AM

* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of northwest Oregon, including the following county, Multnomah. * WHEN...Until 600 AM PDT. * IMPACTS...Streams continue to rise due to excess runoff from rainfall. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS... - At 346 AM PDT, Doppler radar and automated rain gauges indicated heavy rain. Flooding is already occurring in the warned area. Between 2.5 and 3.5 inches of rain have fallen. - Additional rainfall amounts of 1.5 to 2.5 inches are possible in the warned area. - Some locations that will experience flooding include... Gresham, Troutdale, Fairview and Wood Village. - The Tualatin River at Dilly and the Nehalem River near Foss are currently at action stage, with multiple other rivers forecasted to reach action stage or minor flood stage by Friday afternoon. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.

Winter Storm Warning issued March 12 at 10:42PM PDT until March 13 at 5:00AM PDT by NWS Portland OR

Effective: Thu March 12, 2026, 10:42 PM
Expires: Fri March 13, 2026, 5:00 AM

* WHAT...Heavy snow expected above 3000 to 3500ft. Additional snow accumulations up to 4 to 6 inches with locally higher amounts possible along the crests. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades. * WHEN...Until 5 AM PDT Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snow levels will continue to rise above 5000 ft through early Friday morning.

Consider postponing travel until weather conditions improve. If you must travel, be sure to slow down and allow extra time. If your car becomes trapped in deep snow, be sure to keep your car off to stay safe from potential carbon monoxide poisoning. If you are using a generator, be sure to keep it outdoors and away from windows and vents. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.