Well what did they expect. The weakest ice is always at the edge of the lake. They would of been fine if they parked further out. Or just park on shore....its right there... just sayin..
i know the government is into crazy shit but these are not good examples. there just clouds and your just smoking way to much weed my friend. clouds move with wind in the upper atmosphere and move around. its common for clouds to line up or break apart and change shape.
very nice riding spot.. just dont sneeze on the bridge :)