Forum:Blizard vs whirlwind

hi i was wondering if i can use black whirlwind's effect if i normal summen blizard and use its effect or do i have to choose? i think u can't but there is allot of discussion at my locals about it and the judge isn't shure about it(if ure answer is already given by someone else i would like you to confirm it so i can be more sertain )many thank