Stormy seas are always interesting and powerful scenes, and your image is no different. If you don't mind, I have a few suggestions. I think that the composition would have been stronger had you gotten the camera closer to the surf to emphasize it more. Regarding the processing, there appears to be too much contrast in the scene. The clouds are blue, which is likely a white balance issue. I hope that you find these comments helpful.
Err, what storm? I hate to be a party pooper but all I see is heavily processed thin cloud (yes that is plain blue sky I can see through it; I can see the sunlight hitting the top of it, and a clear horizon beyond it) and some gentle waves lapping on the beach.
I'm not saying anything about the artistic merit of this photo, but I'm a little tired of these over-processed 'normal' skies that suddenly and invariably become storms at the twist of a few sliders.
I've seen a few storms but they didn't look anything like the above.