Blizzard

 A bright streak flashes from your pointing finger at a point of your choosing within range and then blossoms with a low roar into a ball of ice and snow. Each creature in a 20 ft radius sphere centered on that point must make a dexterity saving throw. A target takes 8d6 cold damage on a failed save, or half as much damage on a successful save.

The storm leaves a 20 ft radius circle of difficult ice and snow terrain.

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.