Hi... I remember hearing how you want to OPEN certain windows sometimes when a tornado is approaching. Assuming we get 80-90 mph sustained winds here, and one of my windows breaks, is it ever a good idea to open more to allow the air to flow through, instead of too much pressure building up inside the house, possibly lifting off the roof? I am surrounded by trees, as is most of Gainesville, which could cause other, possibly worse problems than some broken windows. I am in a fairly strong cement block house from the mid-50s. Putting up plywood is not really an option for me. Even if I wanted to, I believe most of the wood has sold out aleady. People here seem to be stocking up on supplies, but not really covering windows. Thanks for any help.