The longer it's parked over you, though, the higher the chances of losing power and more damage could be expected.
You probably want to make sure your vehicles are full of gas, and you might spend a few dollars to fill some coolers with ice. If you don't lose power, most of the ice will go to waste, but you'll look like a hero if power is lost.
Vehicles are full, plus have a couple cans of gas for the generator, so I should be able to keep my refrigeration going for awhile if we lose power, as seems likely. I'm not quite as ready for this as I'd like to be in that I don't have a way to hook up the generator to the house circuit. The little 5600 watt gen can't handle the whole house, but it's no problem to open every breaker except the couple in use.
Forgot to say, flooding shouldn't be too much of a problem here, I live on high ground up on the rocky ridge. Been in the same spot for 14 years now.