At least in my general area of Florida, we look at the category over the name, but people tend to be lax over even that.
-Category 1-2: is a bad rainy day, sucks if it's a work/school day, no boards on windows.
-Category 3: is a really bad rainy day, school might be canceled provided you're in the cone of death, you'll still have to go to work, no boards on windows except for a few people who just decide to live in caves all hurricane season, might want to clear the junk out of your yard.
-Category 4: okay fair enough school is canceled, work is at your boss's discretion, tend to be more worried about the tornadoes spinning off them.
-Category 5: batten down the hatches, board the windows, hide in the hallway, work is canceled.