Frost Advisory
2026-04-03T09:00:00-07:00

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Interior Del Norte, Coastal and Interior Humboldt, Coastal and Interior Mendocino, Northern and Western Lake County * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Fog may form in some valleys, which could raise temperatures and reduce the risk of frost. Confidence is low on which valleys will see fog. Valleys that remain clear could see temperatures near or below freezing.

Mad River (Segment 2) Paddle Report

Paddle Report

California

Last Updated: 2025-06-28

The Mad River is a Class III-IV whitewater river located in northern California.

Summary

Segment 2 of the river run spans approximately 9 miles and is ideal for intermediate and advanced kayakers and rafters. The ideal streamflow range for this segment is between 500-1500 cfs, with the peak season running from March to May.

The Class III-IV rating of this run provides a challenging and exciting experience for experienced whitewater enthusiasts. The river features various rapids and obstacles, including Steelhead Falls, Rattlesnake, and Horseshoe Bend. The rapids are technical and require precise maneuvering skills, making it a thrilling ride for paddlers.

There are specific regulations to note for this area. The Mad River is managed by the Bureau of Land Management and requires a permit for all commercial and non-commercial use. Additionally, all boats must be inspected for invasive species before entering the river. Camping is allowed in designated areas, but fires are prohibited along the riverbanks.

Overall, the Mad River (Segment 2) is a must-do for advanced whitewater enthusiasts seeking a challenging and exciting adventure. Make sure to check water levels and obtain the necessary permits before embarking on this adventurous journey.

°F

mph

Wind

%

Humidity

15-Day Weather Outlook

River Run Details

Last Updated	2025-06-28
River Levels	107 cfs (0.42 ft)
Percent of Normal	104%
Status
Class Level	iii-iv
Elevation	ft
Streamflow Discharge	cfs
Gauge Height	ft
Reporting Streamgage	USGS 11478500

Explore Interactive Map

Frost Advisory
Until 2026-04-03T09:00:00-07:00 • National Weather Service
* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Interior Del Norte, Coastal and Interior Humboldt, Coastal and Interior Mendocino, Northern and Western Lake County * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Fog may form in some valleys, which could raise temperatures and reduce the risk of frost. Confidence is low on which valleys will see fog. Valleys that remain clear could see temperatures near or below freezing.