Active AlertsSandy River at Lewis and Clark State Park, OR
Flood Warning
Flood Watch
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
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. - ForecastThe 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.