Minecraft wiki entry for Thunderstorm_survival, associated text: If you are surrounded by a non-flammable block and you are completely enclosed from the outside, you should be safe. There are a number of things you can do so that you don't get bored. First of all, you can just dig down and start mining, and maybe explore a cave if you find one, but make sure you have enough materials and equipment for safety. Another thing you can do is organize your chests, and start crafting things for when you go outside again. Finally, putting decorations around your house is a great thing to do on a stormy day. If one has an indoor farm, they can also farm during storms. Though as monsters (especially creepers) spawn on the outside, going out after the storm is over may be a bit difficult.