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 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.

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,

High pressure is keeping weather over the Portland metro area dry and clear with cold overnight temperatures. The cold weather advisory issued overnight and into Sunday morning has lifted, but chilly temperatures are forecast to return tonight to parts of the southern Oregon coast.

The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

"Light winds and limited air movement will lead to a period of stagnant air conditions," NWS said, warning of "deteriorating air quality for people with respiratory problems" and "visibility one quarter mile or less in dense fog," which "could make driving conditions hazardous."

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

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.

Storm Watch is in place for much of the high terrain of Oregon but shares the same weather alert as parts of Hawaii.

While no blockbuster storms are heading for the Northwest, some opportunities for rain and snow will return and storm travel... Read Story