No winds over 80???, that is a 1 or 2 force storm., Hurricanes in Florida have reached force 5, 125+ and yes in inland areas. You have to remember the winds 500+ feet up and the wind at ground level are two different things.
The design and reinforcement guides would have to be amazingly strong and extend way out beyond the coaster. With time the stresses will cause fatigue.
Lets not forget the lightening. It can be a sunny day and lighten can strike something that high form miles away. The place it will likely strike is the highest thing around, offering the easiest path to the ground.
Sorry I would be very concerned about the safety of a coaster this big/high.
AKK