2025-12-25T22:00:00-08:00
* WHAT...Significant and widespread flooding caused by excessive rainfall will be likely, with potential debris flow impacts across recent burn scars. * WHERE...For all areas of San Luis Obispo, Santa Barbara, Ventura and Los Angeles counties. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...This prolonged strong Atmospheric River storm system will bring periods of heavy rain from late Tuesday into Thursday evening. Potential flooding impacts include the threat of significant and widespread urban roadway flooding, a high risk of major rock/mudslides, and rapid rises in creeks, streams, and rivers which will likely lead to swift water rescues. The recent burn scars will be at risk for debris flows, possibly damaging. These flooding impacts will likely lead to significant travel delays and road closures during this busy holiday travel period. * ADDITIONAL DETAILS... - Heavy rainfall with possible thunderstorms is expected with high rainfall rates, potentially exceeding one inch per hour during the peak of the event Tuesday night into Wednesday across favored south facing slopes and near thunderstorms. Another round of heavier rain and thunderstorms will be possible on Thursday. - http://www.weather.gov/safety/flood
Summary
The ideal streamflow range for this run is between 300 and 1000 cfs, which provides the perfect balance of excitement and safety for experienced paddlers.
This segment of the river has a class rating of III-V, meaning it is appropriate only for expert paddlers who are comfortable with significant rapids and obstacles. The total segment mileage is approximately 7.5 miles, and it includes some challenging rapids such as The Chute, The Maze, and The Toilet Bowl.
One of the most significant obstacles on this run is the St. Francis Dam Disaster site, which occurred in 1928. The dam was the second-largest in California at the time and failed catastrophically, killing over 400 people. Paddlers must navigate this section carefully, as there may be debris from the dam in the water.
There are specific regulations in place for the Whitewater River Run, including a requirement for personal flotation devices, helmets, and appropriate skill level for the class rating. Additionally, paddlers should be aware of the limited access points and the potential for flash floods in the area.
River Run Details
| Last Updated | 2025-12-19 |
| River Levels | 35 cfs (3.35 ft) |
| Percent of Normal | 110% |
| Status | |
| Class Level | None |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 11109600 |
Weather Forecast
Nearby Streamflow Levels
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Streamside
|
||
Castaic Lake
|
||
Spunky
|
||
Cienaga Campground
|
||
Upper Shake Campground
|
||
Upper Shake
|
Site Of St Francis Dam Disaster To Seco Canyon At The Nf Boundary
Green Valley At The Nf Boundary To Site Of St Francis Dam Disaster
Castaic Lake State Recreational Area
Bouquet Canyon Park
Pamplico Park
Chesebrough Park
Plum Canyon Park
Castaic Lagoon
Fishing Pier
Hughes Lake
Elizabeth Lake