A 20-foot-radius sphere of whirling air springs into existence centered on a point you choose within range. The sphere remains for the spell’s duration. Any  creature in the area when the sphere appears must make a Strength saving throw. They take 2d8 bludgeoning damage on a failed save or half as much on a success.

A creature within the sphere must make a Constitution saving throw at the end of its turn or take 3d6 cold damage and have its speed reduced by 5 feet.