The National Weather Service issued a winter weather advisory at 4:35 a.m. on Thursday valid from 7 p.m. until Friday 4 p.m. for Northern Blue Mountains of Oregon.

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

On Thursday at 4:35 a.m. a winter weather advisory was issued by the National Weather Service valid from 7 p.m. until Friday 4 p.m. for Lower Columbia Basin of Oregon.

Winter Weather Advisory for the Northern Foothills of the Blue Mountains including Pendleton, Heppner, Walla Walla, Milton-Freewater, Dayton and Waitsburg from 7 PM Thursday to 4 PM Friday...