The National Weather Service has issued winter weather advisories for much of northwest Oregon and parts of southwest Washington starting Tuesday evening. A map, available on the National Weather Service in Portland website,

The combination of cool temperatures and showery weather has meant Willamette Valley snow is possible at lower elevations throughout this week.

The National Weather Service issued an updated winter weather advisory at 4:16 p.m. on Tuesday valid from 6 p.m. until Wednesday noon for Clatsop County Coast, Tillamook County Coast, Central Coast of Oregon,