PORTLAND, Ore. (KOIN) -- Get ready for a stormy weekend as an atmospheric river arrives in the Pacific Northwest, bringing soaking rain, strong winds and potential coastal and urban flooding.

Parts of the Willamette Valley could see up to 2 inches of rain accumulation from the storm, while the Oregon Coast could see between 3 to 5 inches of rain.

Winds will be up to 45 mph in the Willamette Valley, with Saturday likely the windiest.

But how will it all break down day-by-day? Here's what you need to know.

Friday's Atmospheric River Storm Timeline

The cold front and associated atmospheric river will bring rainfall into the region by Friday morning. Expect showers by the early morning hours for the coastline and showers to begin in Portland and the Willamette Valley by 7 a.m. to 9 a.m. T

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