back in california outside sacramento this man grateful his son is alive. this tree crashing into his son s car minutes before he was set to go to work. i can t think what would have been if he were walking up the walkway. reporter: near the san francisco airport, trevor stines neighborhood under water. my whole garage is up to my knee caps. everything is floating around. reporter: that storm already dropping more than a dozen touchdowns in the heartland. we have a basement, but there wasn t time. once you see the tornado, there s no time. reporter: millions bracing for a potential nor easter. we ve heard a chorus of chain saws here today. it s a massive clean up operation going on. all of that rain did put a dent