Flood Watch
2025-12-26T16:00:00-08:00

A series of warm atmospheric rivers will bring moderate to heavy rain to the Valley, foothills, and mountains the week of Christmas. The prolonged period of rain will bring the risk of flooding to the Sacramento Valley, northern San Joaquin Valley, northern Sierra Nevada and adjacent foothills, as well as the Coastal Range. * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of northern California, including the following areas, the Sacramento Valley, northern San Joaquin Valley, Delta region, Sierra Nevada and adjacent foothills, and Coastal Range. * WHEN...From Saturday afternoon through next Friday afternoon. * IMPACTS...Excessive runoff will result in rises along area rivers, creeks, streams. Small streams and creeks may rise out of their banks. Flooding may occur in low-lying, poor drainage, and urban areas. Mudslides and rockslides may occur in mountain and foothill areas. * ADDITIONAL DETAILS... - Periods of moderate to heavy rain are forecast the week of Christmas. Debris flows are not expected over recent burn scars, but do anticipate enhanced runoff in/below scars. - http://www.weather.gov/safety/flood


Generation And Giant Gaps (Tadpole To Colfax-Iowa Hill Road) Paddle Report

Last Updated: 2023-06-13

The Generation and Giant Gaps Tadpole to Colfax Iowa Hill Road River Run in California is a Class III-IV river run that spans approximately 6.5 miles.


°F

°F

mph

Wind

%

Humidity

Summary

The rapids range from technical pool drops to steep chutes, and there are several obstacles to navigate, including a large boulder garden and a narrow rock chute. The best time to float this section of water is in the spring when flows are between 1,500-2,500 cfs. This section of the river is not recommended for beginner boaters, and a solid roll and rescue skills are necessary.

River Run Details

Last Updated 2023-06-13
River Levels 1390 cfs (1.86 ft)
Percent of Normal 200%
Optimal Range 500-2500 cfs
Status Too Low
Class Level IV to IV+
Elevation 717 ft
Run Length 26.8 Mi
Gradient 120 FPM
Streamflow Discharge 338 cfs
Gauge Height 0.9 ft
Reporting Streamgage USGS 11427000
       

Weather Forecast