Colossus could try to do a fast ball special with Kitty but if Tony is going at even half of his top speed, Colossus will still have to anticipate where Tony will be and throw ahead of time which makes him aim much more inaccurate.
Tony knows about Storm's ability and use his intelligence to bring the fight upclose for the win as Storm is not nearly as durable as Tony. Tony recently took a hit from that Micheal in New Avengers using zero point energy, I think he could take a few hits from Storm.