I love how powerful your lines are, that you do more "showing" then "telling". It has a good rhythm to me and the idea of not simply witnessing the storm or watching it, but living in it... well, it's all a contemplative metaphor for these emotions that need a release.

Just some suggestions about how to punctuate differently? Completely up to you though:

"Empty soul -
words washed away,
in a crowded ocean,
drowning in your good intentions.

Scared and alone,
I cry.
I mourn,
for something that never existed.

Bottled frustrations
bubble to the surface,
rippling the water.

The tsunami begins."

Thank you :) My first attempt at a non-rhyme so my punctuation was a bit off. Appreciate the suggestions.