Cloudburst

You strike the ground, creating a burst of tempestuous energy that surges outward from you. Each creature within 15 feet of you must succeed on a Strength saving throw or take 5d6 thunder damage, as well as 5d6 radiant damage, and be pushed 15 feet away and knocked prone. A creature that succeeds on its saving throw takes half as much damage and isn’t pushed away or knocked prone.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the radius of effect increases by 5 for each slot level above 5th.