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Snowfall forces this early closing for North Cascades Highway

Highway 20, the state’s northernmost pass across the North Cascades, will close for the winter season at 6 p.m. Wednesday, Nov. 10.

Also called Highway 20 or State Route 20, the scenic road connecting Skagit County to the Methow Valley typically closes because of avalanche danger after the first significant snowfall of winter, according to the Washington State Department of Transportation.

A closing date of Nov. 15 was set about two weeks ago, but several feet of snow has fallen since last weekend.

“We hoped to stay open until Nov. 15, but with snow today and warmer/wet conditions on the way, the risk of avalanche is too great,” WSDOT said on Twitter

The closure point will be Milepost 134, east of the mountain village of Newhalem at the Ross Dam Trailhead, WSDOT said.

Highway 20 usually opens in May, allowing Whatcom County residents easier access to warmer spring weather in Eastern Washington.

Robert Mittendorf
The Bellingham Herald
Robert Mittendorf covers civic issues, weather, traffic and how people are coping with the high cost of housing for The Bellingham Herald. A journalist since 1984, he also served 22 years as a volunteer firefighter for South Whatcom Fire Authority before retiring in 2025.
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