Cold weather advisory: Be Aware. A cold weather advisory is issued when seasonably cold air temperatures or wind chill values, but not extremely cold values, are expected or occurring. Be sure you and your loved ones dress appropriately and cover exposed skin when venturing outdoors.

The National Weather Service (NWS) had winter weather warnings in place for 11 states early on Thursday, with up to 1 foot of snow forecast for some parts of the country. Snow can disrupt travel and lead to hazardous driving conditions.

The National Weather Service issued a cold weather advisory at 2:34 p.m. on Thursday valid from Friday 10 p.m. until Sunday 10 a.m. for South Central Oregon Cascades and Siskiyou Mountains and Southern Oregon Cascades.

The long stretch of sunny and dry weather comes to an end on Thursday as clouds increase and Portland prepares for rain and potential snow.

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

But since then, things have dried out. National Weather Service meteorologist Chris Burling said Friday that overall, the Willamette Valley would continue to see cool and foggy weather for at least the next four to five days,

It should be another nice day today as our atmosphere gets set up for the winter weather pattern. Highs today will be in the 40s and 50s. We’ll have a mostly sunny start, but clouds will increase throughout the afternoon,

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.

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.

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

The National Weather Service (NWS) issued a warning for some beach counties in Oregon about so-called sneaker waves that could kill people. Sneaker waves could be lethal by knocking over unsuspecting people and pulling them into cold waters or carrying heavy driftwood logs that can pin people down.