Looks like Laguardia could be out of service for a couple days or more. From the Dallas News:
http://aviationblog.dallasnews.com/2012/10/sandy-brings-flushing-bay-onto-laguardias-pavement.html/
http://aviationblog.dallasnews.com/2012/10/sandy-brings-flushing-bay-onto-laguardias-pavement.html/