PORTLAND, Ore. (KOIN) — Wet and windy weather returns to western Oregon and southwest Washington on Tuesday along with heavy mountain snow.
A powerful spring storm will drop temperatures below average by nearly 10 degrees this week. Soaking rain is expected to impact much of the Willamette Valley, including Portland, by Tuesday afternoon through early Wednesday morning.
Wind speeds will gust close to 25 mph throughout the day on Tuesday. Gusty conditions will make highs in the low to mid-50s feel slightly cooler across the region.
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The heaviest of the rain is expected late Tuesday night into Wednesday morning. That’s where nearly an inch and a quarter of rain is expected to accumulate along the Willamette Valley through Wednesday evening.
Cooler temperatures combined with moisture will help drop the snow elevation levels to nearly 2,500 feet this week. A Winter Storm Warning is in place across the Cascades in Oregon as nearly two feet of snow arrives by Thursday morning.
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The heaviest snowfall is expected throughout Wednesday afternoon and evening. Mountain pass travel will likely be difficult.
Rain and snow chances start to decrease on Wednesday afternoon. A few isolated, non-severe thunderstorms are possible across the afternoon and evening. The Oregon Coast and Willamette Valley could see a few bolts of lightning and hear a rumble of thunder throughout the day.
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A cooling trend is expected to take place this week. Afternoon highs will sit nearly 10 degrees below average by Wednesday. Temperatures will gradually begin to warm late in the week back into the 60s. This also comes as a brief drying trend takes shape across the Pacific Northwest…