Blizzard

A howling storm of thick snow and ice crystals appears in a 40-foot wide, 40-foot high cylinder. The area is heavily obscured by swirling snow. When the storm appears, each creature in the area must make a Constitution saving throw. A creature takes 8d8 cold damage on a failed save, or half as much damage on a successful one. A creature must also make this save when it enters the area for the first time or ends its turn there.

A creature who takes cold damage from this spell has disadvantage on Constitution saving throws made to maintain concentration until the start of its next turn.