Thanks all for the suggestions! I think the best one was to cover the cockpit with a tarp--something I will definitely do next winter!! I've stored uncovered many times, but never have we had the snow like this year!!
I wound up with a heavy hammer and chisel and was able to break up the ice and get rid of it. The scuppers, luckily were not frozen solid, so any new melting will drain out.
The boat is on the East End of Long Island, NY.