What's the windiest situation you were in?
Mt Shasta in the winter. We were attempting Sergeants Ridge, we piled about 100 lbs. of rocks inside our tent to keep it from blowing away. We turned back because of the high winds - even on the lee side. When we got back the tent had been blown way down the hill. Fortunately only the floor was torn up and a small rip in the wall.
In Croatia, Paklenica gorge. And the wind is called Bura (known for having strong gusts, blowing from land to sea)