Winter Weather Advisory
2025-12-20T11:00:00-07:00

...ATMOSPHERIC RIVER TO BRING SIGNIFICANT MOUNTAIN SNOW... .A plume of subtropical moisture associated with an atmospheric river will bring significant mountain snow Thursday into Friday. Snow levels will rise above 5,000 feet Thursday night before quickly dropping Friday morning as strong cold front passes. The heaviest snow accumulations will impact higher elevations above 6,000 feet, especially across the Clearwater and Bitterroot Mountains. * WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 6 to 12 inches at Lookout Pass. Winds gusting as high as 35 mph. * WHERE...I-90 Lookout Pass to Haugan. * WHEN...From 1 PM this afternoon to 11 AM MST Saturday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. * ADDITIONAL DETAILS...Snow levels will briefly rise above 5,000 feet Thursday night with snow changing to rain at Lookout Pass. Snow levels will drop below 3,000 feet Friday morning as a cold front passes with snow resuming.

Pebble Creek Headwaters, Sec. 10, T11n, R25w To Mainstem, Sec. 28, T12n, R25w Paddle Report

Paddle Report

Montana

Last Updated: 2025-12-18

The Pebble Creek Headwaters to Mainstem section of the Whitewater River Run in Montana is a popular and challenging whitewater stretch for experienced kayakers and rafters.

°F

mph

Wind

%

Humidity

Summary

The ideal streamflow range for this section is between 200 and 500 cfs, but it can be run up to 1,000 cfs with caution. The class rating for this section is primarily III-IV, with some V at high water levels. The segment mileage is approximately 10 miles.

Some of the specific rapids and obstacles on this stretch include Boof or Consequences, a 10-foot waterfall drop, and the Narrows, a tight and technical section with multiple hydraulics and steep drops. It is important to note that this section is only recommended for experienced paddlers due to the technical nature of the rapids and potential hazards.

Specific regulations to the area include a permit system for commercial outfitters and a requirement for all boaters to wear personal flotation devices. It is also important to respect private property and keep the area clean and free of litter.

River Run Details

Last Updated	2025-12-18
River Levels	14000 cfs (10.91 ft)
Percent of Normal	140%
Status
Class Level	None
Elevation	ft
Streamflow Discharge	cfs
Gauge Height	ft
Reporting Streamgage	USGS 12388700

Explore Interactive Map

Winter Weather Advisory
Until 2025-12-19T02:45:00-07:00 • National Weather Service
...ATMOSPHERIC RIVER TO BRING SIGNIFICANT MOUNTAIN SNOW... .A plume of subtropical moisture associated with an atmospheric river will bring significant mountain snow Thursday into Friday. Snow levels will rise above 5,000 feet Thursday night before quickly dropping Friday morning as strong cold front passes. The heaviest snow accumulations will impact higher elevations above 6,000 feet, especially across the Clearwater and Bitterroot Mountains. * WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations of 6 to 12 inches at Lookout Pass. Winds gusting as high as 35 mph. * WHERE...I-90 Lookout Pass to Haugan. * WHEN...From 1 PM this afternoon to 11 AM MST Saturday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. * ADDITIONAL DETAILS...Snow levels will briefly rise above 5,000 feet Thursday night with snow changing to rain at Lookout Pass. Snow levels will drop below 3,000 feet Friday morning as a cold front passes with snow resuming.