[The thing about having powers that let you teleport yourself and others around is that it's the sort of thing that's very helpful during a flood. So it's definitely the time to put them to use to help whoever might need to move things or make their way to the treehouses.
Cisco will mostly be moving around the place, mostly avoiding the most dangerous areas. Ocassionally he will go back to the treehouse to rest because who knew doing heroics could be so tiring.]