Winter Weather Advisory
2026-04-16T09:00:00-06:00

* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 3 to 7 inches above 5,000 feet, including area mountain passes. Total snow accumulations of up to 2 inches in lower elevation valley areas. * WHERE...Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, Williams Creek Summit, Salmon, Shoup, Highway 28 Tendoy to Lone Pine, and Bannock Pass. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...An elevated risk exists for snow squalls to produce poor visibility and gusty winds as the front arrives Wednesday evening across mountain pass areas.

Paddle Report

Idaho

Last Updated: 2020-07-08

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The Whitewater River Run from Headwaters To Hammer Creek in Idaho is a popular destination for adrenaline junkies looking for a challenging rafting experience.

Summary

The ideal streamflow range for this run is between 700 and 2,000 cfs, ensuring a thrilling ride with plenty of rapids to navigate.

This run is rated as a Class III-IV, with some sections reaching Class V during high water levels. It covers a distance of approximately 19 miles and features several rapids and obstacles, including the notorious "Devil's Tooth" rapid.

Specific regulations to the area include a permit requirement for commercial rafting companies and a minimum age limit of 14 years for rafters. Additionally, all rafters must wear a personal flotation device and follow Leave No Trace principles to ensure minimal environmental impact.

Regional Streamflow Levels

Blackbird Creek Near Cobalt 12.4cfs	12cfs
Mf Salmon River At Mf Lodge Nr Yellow Pine Id 3550.0cfs	3550cfs
Middle Fork Salmon River At Mouth Nr Shoup Id 6000.0cfs	6000cfs
Napias Creek Below Arnett Creek Near Leesburg 62.8cfs	63cfs
Salmon River Nr Shoup Id 4120.0cfs	4120cfs
Pahsimeroi River At Ellis Id 173.0cfs	173cfs

15-Day Long Term Forecast

River Run Details

Last Updated	2020-07-08
River Levels	12 cfs (0.65 ft)
Percent of Normal	141%
Status
Class Level	iii-iv
Elevation	ft
Streamflow Discharge	cfs
Gauge Height	ft
Reporting Streamgage	USGS 13306336

Explore Interactive Map

Winter Weather Advisory
Until 2026-04-16T09:00:00-06:00 • National Weather Service
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 3 to 7 inches above 5,000 feet, including area mountain passes. Total snow accumulations of up to 2 inches in lower elevation valley areas. * WHERE...Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, Williams Creek Summit, Salmon, Shoup, Highway 28 Tendoy to Lone Pine, and Bannock Pass. * WHEN...From 6 PM Wednesday to 9 AM MDT Thursday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Wednesday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...An elevated risk exists for snow squalls to produce poor visibility and gusty winds as the front arrives Wednesday evening across mountain pass areas.

HEADWATERS TO HAMMER CREEK

Paddle Report • Streamflow Levels • Weather Forecast

April 15, 2026

Last Updated	2020-07-08
River Levels	12 cfs (0.65 ft)
Percent of Normal	141%
Status
Class Level	iii-iv
Elevation	ft
Streamflow Discharge	cfs
Gauge Height	ft
Reporting Streamgage	USGS 13306336