Wow, what a nice and fitting take on the theme, I really love how the storm is integrated!
Would have loved to see a calm element to this in other place as well, not just the start, but really cool idea.
The gameplay felt nice, polished. The audio seems to get overloaded, when too many enemies are present :D.
I only had one turret, would be great to gain more as the gameplay moves on (maybe I didn't play far enough). Good stuff keep it up!