Maybe keep it sheltered on the side of the house or building that is out of the wind will help. My 14.5 has been in
some high winds and has never fallen over yet that way.
50 mph wind, that's what we call a stiff breeze here. I've done cooks in wind like that I got it done but it was a PITA for sure. Had to strap the lid down as the wind blew it off twice.
Good luck.