In the real World, in such circumstances, you would be legally required to nominate 2 SUITABLE diversions, BEFORE TAKE OFF.
Yes I'm well aware of that! I was trying to make a subtle point, which is obviously lost on you.
And of course, "in the real world", the weather can change after you have departed can't it, or maybe not on your planet! Must you be so naive?
If the situation warrants it then I'd rather break the law than glide serenely into a smoking hole in the ground and be responsible for 150 coffins! I think I could justify that don't you?