Hydrologic Outlook
None

ESFSEW A series of atmospheric rivers will provide rounds of increasingly impactful rainfall starting on Friday and continuing through early next week. Snow levels will remain around 5000 to 6000 feet. Expect rising rivers with potential for flooding especially for rivers flowing off the Olympics and Cascades. Urban flooding and landslides are also possible throughout this period as the soil conditions remain wet.


Boulder River Wilderness Boundary To Confluence With Stillaguamish River Paddle Report

Last Updated: December 5, 2025

The Whitewater River is located in the Boulder River Wilderness area in the state of Washington.


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Summary

The ideal streamflow range for this river is between 100 and 500 cubic feet per second (cfs), which typically occurs during the spring and early summer months. The river is rated as a Class III-IV, making it suitable for experienced paddlers with good river skills. The segment mileage for this run is approximately 10 miles, starting at the wilderness boundary and ending at the confluence with the Stillaguamish River.

There are several specific rapids and obstacles on the Whitewater River, including "Hellhole," "S-turn," "Triple Drop," and "The Maze." These rapids range from Class III to Class IV and require technical paddling skills. Paddlers should also be aware of several log jams and sweepers that can pose hazards to navigation.

The Boulder River Wilderness area has specific regulations that must be followed by all visitors. These include rules regarding camping, campfires, and human waste disposal. The area is also closed to all motorized vehicles, including bicycles, and permits are required for overnight stays. Paddlers should also be aware of fishing regulations, as the Whitewater River is home to several species of fish, including steelhead and cutthroat trout.

Overall, the Whitewater River run in the Boulder River Wilderness area offers a challenging and rewarding paddling experience for experienced paddlers. While there are specific hazards and regulations to be aware of, the beauty and excitement of this run make it a popular destination for adventurous paddlers.

River Run Details

Last Updated
River Levels 5220 cfs (8.24 ft)
Percent of Normal +100%
Optimal Range 100-500 cfs
Status Too Low
Class Level iii-iv
Elevation ft
Streamflow Discharge cfs
Gauge Height ft
Reporting Streamgage USGS 12187500
       

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