It shows you are non-pilot asking such question. No sane pilot would be tempted to be close to a CB not to mention of flying into one. We pilots try to stay away at least 20 miles from any such weather system (and this is what airline pilots are being told too). And at this point I would refrain from making statements about what destroyed Air Asia flight - often such guesses (even educated guesses) aren't very close to what really happened.