* WHAT...Snow expected. Total snow accumulations between 2 and 6 inches with higher snow totals expected at and above pass level with 7 to 10 inches of snow for Galena Summit. Very gusty winds developing late Friday into Friday night. * WHERE...Sawtooth/Stanley Basin and Sun Valley Region. * WHEN...Until 5 AM MST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday commutes.
The Headwaters to Confluence with Alturas Lake Creek segment of the Whitewater River in Idaho is a popular kayaking and rafting destination. The ideal streamflow range for this segment is between 300 and 1,000 cubic feet per second (cfs). The class rating for this segment is Class II-III, with some sections reaching Class IV during high water conditions.
The segment has a total mileage of approximately 12 miles, with numerous rapids and obstacles along the way. Some of the most notable rapids include Trestle Rapids, Moon Falls, and Jake's Falls. Trestle Rapids is a Class III rapid with a large boulder in the middle of the river that creates a challenging obstacle for kayakers and rafters. Moon Falls is a Class IV rapid that requires precise navigation to avoid rocks and drops. Jake's Falls is a Class III+ rapid that features a steep drop and large waves.
There are specific regulations that apply to this segment of the Whitewater River. All boaters must wear personal flotation devices and helmets. Additionally, motorized watercraft are not allowed on this section of the river, and all boaters must adhere to Leave No Trace principles to preserve the natural environment around the river.
| Last Updated | 2025-12-03 |
| River Levels | 595 cfs (2.09 ft) |
| Percent of Normal | 89% |
| Status | |
| Class Level | ii-iii |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 13295000 |
| Location | Reservations | Toilets |
|---|---|---|
Pettit Lake
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Pettit Lake Campground
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Alturas Tent Camping Area
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Smokey Bear
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Smokey Bear Campground
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Smokey Bear (Alturas) Campground
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