Can you prevent a flood? Maybe you can't control the weather, but you can take small steps to control the environment in your home when the rain is pouring down. Shop-Vacs are great ways to get the water out of low-lying areas. Remember during all of these processes to wear your gloves and masks. Use sand bags to prevent water from rushing in your doorways. Then when it's dry, close off unsealed entries and windows as well.
For supplies and ways to help control flooding, check the link below.