The surfer crowd could be a good market here. You could probably find some traffic by posting in their forums.
California looks to hurricane development off Mexico all the time for swell, but I see you are only covering the atlanitc here...
Great idea! Have you seen www.surfline.com? Maybe we could advertise there once we get the Pacific going (which wouldn't be a colossal amount of work with the systems we have in place...).