Tornadoes FTW.
Oh,and get your parents to move your bedroom downstairs if it's upstairs, if its on ground floor, move to basement, or make a basement and move there.
Make sure you bring a hand/foot-powered generator, a computer, a TV, your internet router, and all your video game consoles and games in case the roof blows off and theres a flood.
Oh, remember to build a platform for everything just in case some water slops down the trapdoor!