Winter Storm Warning
2025-12-20T05:00:00-07:00

* WHAT...Light to moderate valley snow and heavy mountain snow. Several inches of accumulation below 7,000 feet, including 5 to 8 inches in Stanley and Ketchum. One to two feet accumulation above 7,000 feet, including two feet on Galena Summit. Wind gusts as high as 45 mph. * WHERE...Big Lost Highlands/Copper Basin, Frank Church Wilderness, Sawtooth/Stanley Basin, and Sun Valley Region. * WHEN...From 5 AM Thursday to 5 AM MST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes. Gusty winds could bring down tree branches.


Outlet Pettit Lake To Confluence With Alturas Lake Creek Paddle Report

Last Updated: 2025-12-16

The Whitewater River Run from Outlet Pettit Lake to Confluence with Alturas Lake Creek in Idaho is a beautiful and exciting river adventure.


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Summary

The ideal streamflow range for this run is between 500-2000 cfs, which is typically found during the spring and early summer months. This run is rated as Class III-IV, meaning it is suitable for intermediate to advanced paddlers with prior experience in whitewater.

The segment mileage for this run is approximately 10 miles, and paddlers can expect to encounter several rapids and obstacles along the way. The most notable rapids include Hell’s Half Mile, which is a technical Class IV rapid that features a series of drops and tight chutes, and The Box, which is a narrow canyon section with several technical Class III rapids.

In terms of regulations, all paddlers are required to wear a personal floatation device (PFD) at all times while on the water. Additionally, a permit is required to launch a watercraft on the river and camping is only allowed in designated campgrounds.

Overall, the Whitewater River Run from Outlet Pettit Lake to Confluence with Alturas Lake Creek is a thrilling and scenic river adventure that requires proper equipment and experience. Paddlers should always check current streamflow conditions and familiarize themselves with the river rapids and regulations before embarking on this run.

River Run Details

Last Updated 2025-12-16
River Levels 595 cfs (2.09 ft)
Percent of Normal 122%
Status
Class Level iii-iv
Elevation ft
Streamflow Discharge cfs
Gauge Height ft
Reporting Streamgage USGS 13295000
       

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