Waterspout

You create a forceful stream of water that rushes out in a line 30 feet long and 5 feet wide. Each creature in the line must make a Strength saving throw. On a failure, the creature takes 3d6 Bludgeoning damage and is pushed up to 15 feet away from you. If the creature succeeds on its saving throw, it takes half as much damage and is not pushed.

At Higher Levels.
When you cast this spell using a spell slot of 3rd level or higher, increase the bludgeoning damage by 1d6 per slot level above 2nd.