>>55+ mph to create hail the size of a golf ball, and an updraft of 90+ or more mph to create hail the size of a baseball.

Huh. If I think about it, I've been through some windstorms - one just recently - where I've had trouble walking and I've seen small cars being pushed across the street and a truck blown over. I don't recall exactly, but I think it was at 120km/h.

I guess, if the wind is pushing up, then a golfball-sized, or even a grapefruit-sized chunk of ice would be blown upwards instead of downwards.

Thanks guys, that easier to visualize.