On Thursday at 12:49 p.m. the National Weather Service issued an updated winter weather advisory valid from 4 p.m. until Friday 4 p.m. for Oregon Lower Treasure Valley as well as Harney, Baker and Malheur counties.

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 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.

School districts across northwest Oregon have announced closures or delays Wednesday morning while the region deals with freezing temperatures and snow in some areas.Corbett School District, a small district of about 1,