Well doneI thought someone would do this, but your animation is even better than what was in my head.
Edit: see how big the slick has grown using Google Earth www.b3ta.com/links/471331
(Edit: see how big the slick has grown using Google Earth www.b3ta.com/links/471331
RedHouse over yonder,
Fri 14 May 2010, 3:05,
archived)