But it's not a blizzard. Its massive shards of falling ice.
bliz·zard
(blzrd)n.
1.
a. A violent snowstorm with winds blowing at a minimum speed of 35 miles (56 kilometers) per hour and visibility of less than one-quarter mile (400 meters) for three hours.
b. A very heavy snowstorm with high winds.
He's not conjurning snow and high winds, he's just conjuring monolithic shards of ice and letting gravity do the work. Its more smashing the freezing. So no, it doesn't need the generic name "Blizzard" and your post is awful.