A winter weather advisory was issued by the National Weather Service on Thursday at 12:36 p.m. valid from Friday 4 a.m. until Saturday 4 p.m. for Northern Blue Mountains of Oregon.

A winter weather advisory was issued by the National Weather Service on Thursday at 1:48 p.m. valid for Friday between 7 a.m. and 4 p.m. for Oregon Lower Treasure Valley and Baker County.

The Cascades will see heavy snowfall with up to a foot of accumulation into Saturday, impacting mountain travel.

The National Weather Service has issued a winter storm watch for the Cascades from Central Oregon to the Canadian border starting Thursday evening and lasting through Saturday afternoon.

A Wind Advisory has been issued by the National Weather Service (NWS) Medford for Central Siskiyou County, including Interstate 5 from Grenada south to Weed, warning of strong gusts and potential power outages.

Heavy snow and high winds are forecast to impact travel on Oregon’s Cascade Mountain roads and passes from Thursday night into Saturday afternoon.

National weather forecasters are warning drivers to postpone travel or slow down in East Linn County with a winter storm expected to bring up to 15 inches of snow to the region by Saturday, Feb. 1.

Rain and snow is returning to Oregon this weekend, and low elevation snow and ice will become possible next week.

The National Weather Service has simplified some of its winter weather alerts for Wind Chill and Extreme Cold Warnings.

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

Forecasters are warning that air pollution may become trapped and adversely affect humans, due to weather conditions in the U.S.

Cold Weather Advisories have been put into place across the Pacific Northwest this week, but many might be unaware of the new cold weather terms.