Rain is predicted for Oroville CA every day from WED until next TUE, according to my app.
The emergency is an ongoing train wreck. The snow pack is 170% of normal and heavy flows can occur over the next 6 weeks or more. A large storm in a few days if wet could pour a lot more water into a lake they can’t release water fast enough. This will be DWR trying to stay ahead of the game.