How much snow is expected in the affected areas?

The NWS expects total snow accumulations of 4 to 8 inches above 4,500 feet in the Cascades and 4,000 feet in Western Okanogan County.

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Cascades Blanketed in Snow as Winter Arrives Early in Washington

Q: What areas of Washington are affected by the winter weather advisories?

The winter weather advisories cover the Cascades of Whatcom and Skagit Counties, including Mount Baker, as well as Western Okanogan County, including Washington Pass.

18 Oct

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Summary

NWS issues winter weather advisories for mountain regions of Washington
4-8 inches of snow expected above 4,500 feet, hazardous travel conditions
Drivers urged to slow down, allow extra time, and stay informed on road conditions

Cascades Blanketed in Snow as Winter Arrives Early in Washington

As of October 18th, 2025, the National Weather Service (NWS) has issued winter weather advisories for the mountain regions of Washington state. The advisories, issued from the NWS offices in Seattle and Spokane, highlight the risk of travel difficulties, slippery roads, and hazardous conditions, particularly for motorists and backcountry visitors.

The advisories cover the Cascades of Whatcom and Skagit Counties, including Mount Baker, as well as Western Okanogan County, including Washington Pass. In these areas, the NWS expects total snow accumulations of 4 to 8 inches above 4,500 feet and 4,000 feet, respectively, from Saturday evening through Sunday evening.

The NWS has warned that roads, especially bridges and overpasses, may become slick and hazardous, making travel very difficult. Motorists and recreational visitors in these mountain regions are strongly advised to monitor NWS updates and the Washington State Department of Transportation's real-time travel alerts before and during their journeys.