2025-12-19T17:00:00-07:00
...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...Heavy snow expected. There is a likelihood of major winter weather impacts to isolated extreme winter storm impacts. Total snow accumulations between 8 to 14 inches for Lolo Pass and 16 to 24 inches for Lost Trail Pass. Winds gusting between 35 and 45 mph. * WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass. * WHEN...From 5 PM this afternoon to 5 PM MST Friday. * IMPACTS...For MAJOR winter weather impacts, expect considerable disruptions to normal activities. Dangerous or impossible traveling conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes, especially over higher passes. Gusty winds could bring down tree branches, leading to power outages. * ADDITIONAL DETAILS...Snow will briefly change over to rain at Lolo Pass Thursday night, before switching back to snow early Friday morning. For Lost Trail Pass, snowfall rates will exceed one inch per hour for several hours Thursday night into Friday morning.
Summary
The ideal streamflow range for this run is between 800-2000 cfs, which typically occurs in the late spring and early summer months. The segment mileage for this run is approximately 10 miles, with a class rating of III-IV.
Specific river rapids and obstacles on Rock Creek include House Rock, a large boulder in the middle of the river that requires precise navigation, and the Staircase, a series of drops and chutes that require technical maneuvering. Other notable rapids include Fang, Thunderbolt, and Big Rock.
There are specific regulations in place for the Rock Creek area, including a permit requirement for commercial outfitters and a limit on the number of launches per day. In addition, boaters are required to follow Leave No Trace principles and pack out all trash and waste.
River Run Details
| Last Updated | 2025-06-28 |
| River Levels | 485 cfs (3.01 ft) |
| Percent of Normal | 51% |
| Status | |
| Class Level | None |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 12332000 |
Weather Forecast
Nearby Streamflow Levels
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
West Fork of Rock Creek Cabin
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Stony Campground
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Squaw Rock
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Stony Cabin
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Cy's Place
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Morrison Camp
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Rock Creek