Winter Storm Warning
2026-02-19T22:00:00-08:00

* WHAT...Heavy snow with additional snow accumulations up to 1 foot between 1000 and 3000 feet, 2 to 3 feet above 3000 feet, and up to 4 feet at peaks. Light snowfall accumulations up to 2 inches below 1000 feet in Shasta and Tehama Counties. Winds gusting as high 45 to 55 mph. * WHERE...Portions of Northern California, now including elevations below 1000 ft in Shasta and Tehama Counties * WHEN...Until 10 PM PST Thursday. * IMPACTS...Dangerous to near impossible travel conditions with chain controls and road closures. Additional power outages from downed trees and power lines. Low visibility due to a combination of gusty wind and heavy snow. * ADDITIONAL DETAILS...Snow levels remain around 1500 to 2500 feet through Thursday in the Sierra Foothills with potential to see snow levels as low as 1000 feet. Snow levels potentially down to 300 feet along the southern Cascades, Shasta County, and Tehama County in the morning hours.

Tunnel Run (Ralston Powerhouse To Greenwood) Paddle Report

Paddle Report

California

Last Updated: 2023-06-13

The Tunnel Run section of the American River in California is a Class III-IV river run, with a total distance of 7.5 miles from Ralston Powerhouse to Greenwood.

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.

°F

mph

Wind

%

Humidity

15-Day Weather Outlook

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	1150 cfs
Gauge Height	1.7 ft
Reporting Streamgage	USGS 11427000

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Winter Storm Warning
Until 2026-02-19T16:15:00-08:00 • National Weather Service
* WHAT...Heavy snow with additional snow accumulations up to 1 foot between 1000 and 3000 feet, 2 to 3 feet above 3000 feet, and up to 4 feet at peaks. Light snowfall accumulations up to 2 inches below 1000 feet in Shasta and Tehama Counties. Winds gusting as high 45 to 55 mph. * WHERE...Portions of Northern California, now including elevations below 1000 ft in Shasta and Tehama Counties * WHEN...Until 10 PM PST Thursday. * IMPACTS...Dangerous to near impossible travel conditions with chain controls and road closures. Additional power outages from downed trees and power lines. Low visibility due to a combination of gusty wind and heavy snow. * ADDITIONAL DETAILS...Snow levels remain around 1500 to 2500 feet through Thursday in the Sierra Foothills with potential to see snow levels as low as 1000 feet. Snow levels potentially down to 300 feet along the southern Cascades, Shasta County, and Tehama County in the morning hours.

TUNNEL RUN (RALSTON POWERHOUSE TO GREENWOOD)

Paddle Report • Streamflow Levels • Weather Forecast

February 19, 2026

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	1150 cfs
Gauge Height	1.7 ft
Reporting Streamgage	Nf American R A North Fork Dam Ca USGS 11427000

Realtime River Levels

Nf American R A North Fork Dam Ca
USGS 11427000

Tunnel Run (Ralston Powerhouse to Greenwood) Preview

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5-Day Hourly Forecast Detail

Nearby Streamflow Levels

Pilot C Bl Mutton Canyon Nr Georgetown Ca 2.4cfs	2cfs
Pilot C Ab Stumpy Meadows Res Ca 2.7cfs	3cfs
Nf American R A North Fork Dam Ca 1150.0cfs	1150cfs
Deer C Nr Cameron Park Ca 7.8cfs	8cfs
Deer C Nr Smartville Ca 299.0cfs	299cfs
Blackwood C Nr Tahoe City Ca 46.1cfs	46cfs