That's why I quit using covers, we live on top of a very high ridge, and the wind gets pretty bad at times all year long.
I have found that if you keep up with the maintenance, that is, seals, sealant and wax among other things which should be done on a regular bases anyway. You won't have any problems.
When I first got married years ago, we lived in a mobile home which basically is a glorified travel trailer, I never put a cover on it. LOL
Before you guys that live in mobile homes get on me, I'm not putting down mobile homes, in fact, now that I'm older, I'm considering getting rid of my house and buying another one. A lot less to keep up with.
2015 Jay Flight 23 RB
2014 Silverado LT 1500 with a 5.3 V8 Ecotec3