Atmospheric river brings flood risk to Portland

Don't put away that raincoat just yet. Portland is set to see at least a few more days of strong rain and wind.

Why it matters: An atmospheric river is aimed at the Pacific Northwest with the potential to bring localized flooding, landslides and downed trees to some areas.

The latest: Another round of moisture is expected to roll into northwest Oregon Tuesday night and into Wednesday.

• Given all the rain that fell Monday, saturated soils and strong winds could lead to some trees coming down.
• Urban creeks and streams could flood locally, and some tributaries to the Willamette could reach minor flood stage in the Coast Range and the Cascades.

By the numbers: On the extreme edge of things, the National Weather Service said there was a 10% chance the Portland metro area would see between 6 and 8 inches of rain over a 72-hour period starting Monday.

• That's unlikely and would represent a worst-case scenario, the weather service said.

Threat level: A flood watch remains in effect for the area through 4am Friday morning.

• Officials asked residents to remain vigilant, especially those who live below steep slopes or areas that recently burned or are otherwise prone to landslides.

Yes, but: Despite all the precipitation, temperatures are expected to remain warm and little snow accumulation is expected in the Cascades below about 6,000 feet.

What's next: The rain is expected to ease by Thursday and should transition to mostly showers heading into the weekend.