I have SS blizz, SSTABB, SSRWBB.... that is only a snow blizzard at best. Being as blizzards are so variable in color, the only way to tell for sure is to test breed.
That being said she cannot be a super snow blizzard. Just as Pat, and Paul have stated. I see the "normal SS blizz" pattern that might lead you to believe that..but if the genetics are not there then they are just not there.