Assuming you're outside or in a room big enough, you could cast *levitate* on you before everything (even better have some cast it on you).  You move to your spot and cast *fog cloud* and then you can use your movement to go up (as you are under levitate) and when out of the fog cloud use *misty s*tep. But *fog cloud* has a pretty good range, so I see very few situations where going to all this trouble would make sense instead of just casting *fog cloud* on point that you are out of it.