FS9 is able to simulate windshear. I happened to meet windshear while landing at least three times while I was virtually touring the world.
After all to simulater windshear the simulator have to simulate layers of wind, and FS9 is able to do that.
It isn't able to (and i'd like to see it implemented) simulate a tornado, as others have tried unsuccessfully to get into one, but windshear (if youre unlucky) can get you all right.

There's but one real cure for human stupidity. It's called DEATH.
At the moment mourning the assassination of sarcasm and irony for the good of the "higher".
Proud FSIX user. Active user of FS98, X-plane and novic