I have a new to me 255 wellcraft. Unfortunately the winter cover, mooring cover and the top all have rotted and are completely useless. I have a tarp over the boat but it keep blowing off. I have all the seats along with any cushions in the cabin out and stored in my basement. If the cover blows off how bad will that be for the boat if I don't catch it for a week or so (the boat is not stored near my house). I live in a snow covered area. We get rain, snow and then sub zero temperatures.