As two actions, a churning snow storm forms, centered on a point you can see within sight range and spreading to a radius of 90 meters. Hailstones, gusts, and freezing rain assail the area under the cloud from the cloud. The area is difficult terrain and is heavily obscured. Ranged weapon attacks in the area are impossible. The wind and rain count as a severe distraction for the purposes of maintaining concentration on spells. Gusts of strong wind (at least 30 kilometers per hour) automatically disperse fog, mists, and similar phenomena in the area, whether mundane or magical.
Each creature that is completely under the cloud at the start of its turn must make a Fortitude saving throw.
On a failed save, a creature takes 2d6 cold damage and is slowed 2 until the end of its next turn.
On a successful save, a creature takes half as much damage and isn’t slowed.