If possible, cover yourself with a blanket or sleeping bag to deflect any flying debris. The myth that opening a window will prevent a house from exploding still persists. Opening a window does nothing but subject you to the danger of flying glass. Get out of a mobile home. Go to a shelter, if possible.
High winds can easily overturn a mobile home, even if it is tied down.
It is safer to lie in a ditch than stay inside. A MALL Go to a basement or an inside hallway on the lowest level possible. Wind speeds in a funnel tend to increase with height. In a high-rise, interior stairwells on the lowest level possible are a good place to go. Stairwells are structurally sound and offer protection from debris.