unthinkable happened take a look at this. this is a levee in monterey, california, just south of san francisco, that has given way. the levee breached, sending floodwaters gushing toward communities below. thousands were evacuated, and it is still unclear just how bad the damage is. a desperate effort is under way right now to plug that breach and stop the flooding. across central and north california, the rain has washed away roads and flooded communities. unfortunately, there is no relief in sight. more rain is set to batter the region tomorrow. steve patterson starts our coverage tonight from springville, california. reporter: tonight, the worst-case scenario in northern california, the bajado river levee in monterey county failing, flooding homes and farmland overnight, door-to-doo evacuations and more than 60 water rescues.