OK I found this thread after talking about these funny worms I found sat night out by a deepwater marina. on the way home decided to stop at a few marinas near high tide and check out the situation. At one place I found a bunch of what looked like garden worms and they were all twirling in the water. There had to be between 10 and 20 of them. I wish I would have had a good chance to take a pic but my phone battery was dead.
They were about 1-2' down in the water and each of them was about 3-5 inches long.

I was wondering if you guys know if there could be a cinder worm hatch as early as march? It was a full moon that night. thanks