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 continues to be 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...Through 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
The river features several obstacles, including boulders and rapids, making it best suited for intermediate and advanced paddlers. The best time of year to float this section of water is in the spring, when the water levels are high, with a recommended flow of 500-1000 cfs. Paddlers should use caution when navigating the river, as there are several sections with strong currents and potential hazards. Overall, the Yankee Jim Road to Ponderosa Way Shirttail River Run offers an exciting and challenging adventure for experienced paddlers.
| Last Updated | 2023-06-13 |
| River Levels | 1390 cfs (1.86 ft) |
| Percent of Normal | 200% |
| Optimal Range | 500-5000 cfs |
| Status | Runnable |
| Class Level | II to III |
| Elevation | 717 ft |
| Run Length | 5.0 Mi |
| Gradient | 21 FPM |
| Streamflow Discharge | 955 cfs |
| Gauge Height | 1.5 ft |
| Reporting Streamgage | USGS 11427000 |