2026-01-05T16:00:00-08:00
* WHAT...Heavy snow expected above 5000 feet. Total snow accumulations of 1 to 2 feet above 5000 feet, with 2 to 5 feet above 6000 feet. Locally higher amounts at highest peaks. Winds gusting as high as 55 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park Counties. * WHEN...From 10 PM this evening to 4 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact this evening through Monday morning commutes. Strong winds could cause tree damage. * ADDITIONAL DETAILS...Snow levels 6500-7500 feet tonight into Saturday morning, lowering to 5000 to 6000 feet Saturday afternoon into Sunday, and further to around 4500 to 5500 feet by early Monday morning. Heaviest snow expected on Sunday.
Summary
This section features a number of challenging rapids, including the infamous "Tunnel Chute" and "Chamberlin Falls." It is best to float this section in the spring months, when the snowmelt provides enough water flow to make the rapids more manageable. The recommended flow for this section is between 1,000 and 2,000 cfs. It is important for rafters and kayakers to be experienced and skilled in navigating Class III-IV rapids, as the Tunnel Run section can be dangerous for beginners.
River Run Details
| Last Updated | 2023-06-13 |
| River Levels | 1390 cfs (1.86 ft) |
| Percent of Normal | 200% |
| Optimal Range | 700-3000 cfs |
| Status | Runnable |
| Class Level | IV- to IV |
| Elevation | 717 ft |
| Run Length | 16.5 Mi |
| Gradient | 23 FPM |
| Streamflow Discharge | 2550 cfs |
| Gauge Height | 2.7 ft |
| Reporting Streamgage | USGS 11427000 |
Weather Forecast
Nearby Streamflow Levels
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Dru Barner Campground
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Dru Barner
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Chicken Hawk Campground
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Georgetown Airport Campground
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Forbes Group Campground
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Giant Gap
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Tunnel Run (Ralston Powerhouse to Greenwood)
Big Grizzly Canyon To Oxbow Reservoir
Interbay to Oxbow (End of the World)
Yankee Jim Road to Ponderosa Way (Shirttail)
Greenwood to Mammoth Bar
Chamberlain Falls (Iowa Hill to Yankee Jim)