Blizzard

A cold light flashes from your hand into the sky, as blue shards hurl down at a point you choose within range, slashing through flesh with a biting cold. Each creature in a 20-foot radius, 60-foot high cylinder centered on a point within range must make a Dexterity saving throw. A target takes 3d6 cold damage on a failed save, or half as much damage on a successful one.

As an action on each of your turns before the spell ends, you can call down another blizzard in the same location.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.