An updated winter weather advisory was issued by the National Weather Service on Saturday at 3:54 a.m. in effect until noon for West Hills and Chehalem Mountains, Outer Southeast Portland Metro and West Columbia River Gorge I-84 Corridor.

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

A winter weather advisory was issued by the National Weather Service on Friday at 1:01 p.m. valid from Saturday 3 p.m. until Sunday 6 a.m. for Monroe County.