An Atmospheric River Event will bring moderate to heavy rain this
evening through Monday evening. The prolonged period of rain  will
bring the risk of flooding to the Sacramento Valley, Shasta County,
northern Sierra Nevada and adjacent foothills, as well as the
Coastal Range. This will be for elevations below 4000 feet.

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...A portion of northern California below 4000 feet in
elevation, including the following areas, Sacramento Valley,
Motherlode, Mountains Southwestern Shasta County to Western Colusa
County, Northeast Foothills, and Shasta Lake Area / Northern
Shasta County.

* WHEN...From this evening through Monday 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...
- http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.