Hurricanes are large, swirling storms. Every year from June until December it is hurricane season. Once a hurricane forms, weather forecasters predict its path. They also predict how strong it will get. There are five categories of hurricanes (1-5) and their based-on wind speed. Hurricane season 2017 was extremely active; Hurricane Irma (category 5) was one of the most powerful storms in history. This is what you should know about hurricanes (in the Caribbean).