Short-lived, weak atmospheric river possible in Oregon Friday

PORTLAND, Ore. (KOIN) -- A late-season, minor atmospheric river is expected to impact parts of the West Coast Friday and into the weekend.

A short-lived atmospheric river will increase rain accumulation across the Portland area and much of western Oregon and Washington starting Friday afternoon. Compared to most winter atmospheric rivers, this one will increase the rain potential, but will be short-lived with little impacts.

Friday's rain timeline

A powerful spring...