Predicating snowfall in the Willamette Valley is extremely difficult because of the interplay of cool Arctic air interacting with warmer and moisture-filled ocean air. Many of Oregon's mountain ...

A winter weather advisory is in effect from midnight Tuesday to noon Wednesday for much of the northwest, including the Willamette Valley ... In southern Oregon, multiple inches are forecast even in ...

Highways in the Coast Range — between the Willamette Valley and the Oregon Coast — are forecast to see snow, and even up to an inch is possible at coastal cities such as Tillamook and Astoria.