San Joaquin River in Fresno is at flood stage. This is coming out of Friant Dam and per the map I saw, the river travels north to junction with the American and Sacramento rivers into the Delta.
https://cdec.water.ca.gov/river/rivcond.html
Merced county rivers also flooding.
Wrong link above. That shows you all the rivers in the state.
Here is the warning for the San Joaquin river
https://www.wunderground.com/US/CA/093.html