Hydrologic Outlook
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ESFSEW Another moderately strong atmospheric river will impact western Washington starting as early as Saturday night and extending into Wednesday. Rain, heavy at times, is likely. The snow level will be 5000 feet rising to 8000 ft during the heaviest rainfall on Monday before dropping to 3000 to 4000 feet Monday night into Tuesday. In addition, soils will still be nearly saturated and rivers elevated or still above flood stage. Expect rising rivers with the potential for flooding. Urban flooding, landslides, and debris flows are also possible throughout this period. Please monitor the latest river forecasts from the National Weather Service for additional information.


Sinister Peak Mountain Peaks

Last Updated: December 12, 2025

Sinister Peak is a prominent mountain located in the Pacific Ranges of the North Cascades in Washington, United States.


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