Hi TODO We bought our Montana 07. the winter 07-08 we stayed at the Oregon Coast and the wind blew 60 to 70 miles an hour and nothing happened. We had a couple more times at 50 mph. I did learn how to tie them with a strap like a women bonnet it keep the noise down a little and make you feel they will suvive the winds. We spend a year in New Mexico on I-40 and the winds blew weekly up to 60 mph and no problems, we are now between Tucson and Phoenix Az and have had 45mph once still look great. Hope this helps.
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