When you know that a storm is on its way, you need to ensure that you've got the things you need in your home to get through. A 3-day supply of water is essential, as is 3 day's worth of non-perishable food. You should have a number of reliable flashlights, with spare batteries. A battery powered or hand cranked radio will keep you in touch with the outside world. You'll also need a well stocked first aid kit.