Christmas travel planning is ramping up across Oregon as a wet and potentially damaging weather pattern develops ahead of the widely traveled December 19-December 23 holiday week. While temperatures are predicted to be near or above normal, precipitation intensity and mountain impacts may have a substantial impact on travel plans later this week.
Sunday is relatively peaceful, but the focus rapidly shifts to mid- and late week when a succession of Pacific systems advances inland. According to the National Weather Service in Portland, widespread rain is expected throughout western Oregon late Thursday and Friday, with heavy rains possible. Snow levels are predicted to fluctuate, increasing the likelihood of rain turning to snow or freezing rain in the Cascades and higher passes, particularly overnight.
Consistent rain is the greatest concern for the Portland metro area, potentially slowing traffic on major routes like I-5, I-84, U.S. 26, and Highway 217. Peak holiday departure times are likely to result in reduced visibility, standing water, and congestion. Travelers driving south toward Eugene, north into Washington, or east across the Columbia River Gorge may expect quickly shifting circumstances.
Mountain travel carries the highest risk. Snow, slush, or freezing rain may fall on Cascades routes such as Santiam Pass, Government Camp on U.S. 26, and Willamette Pass, depending on the time of year. According to ODOT, drivers should be prepared to use chains at times, regularly monitor pass conditions, and avoid non-essential mountain travel during active precipitation.
If severe rain or low ceilings coincide with peak holiday passenger volumes, Portland International Airport may also experience delays in air travel. Travelers are advised to come early and check the flight status often.
With above-normal precipitation forecasts in Northern California and the Pacific Northwest, flexibility will be important. Charge your electronics, stock up on emergency supplies, and plan ahead of time.
This Christmas travel time in Oregon is shaping up to be wet and timing-sensitive, necessitating early planning as holiday traffic picks up.
Leave a Reply