It blows down the street with the rest of the structure. Florida homes are now built by code for 130 mph winds. :-(
Even our tool shed (which is built by a local company) is built to code and secured for 130 mph.
When we added an addition a few years ago, we had to bring every part of the house up to Miami-Dade code (our county uses Miami Dade code and if the addition is more than 1/4 of the existing home sq footage, entire house must be upgraded.)
So that meant all new windows, new doors, new roof, etc. The hurricane straps to hold the roof over the deck must have had a zillion holes in them, LOL. The carpenters complaing A LOT, but I'm glad now that everything is up to code.