NEWBURGH, N.Y. (AP) - New York police believe two boys trapped in a snow pile in the Hudson Valley for several hours after a plow buried them were able to survive thanks to an air pocket in the heavy, wet snow. The two cousins - aged 11 and 9 - were building a snow fort Wednesday night in Newburgh when a plow operator clearing a parking lot unknowingly pushed snow over them. A search was called that night after the boys’ parents became alarmed. The boys were found conscious and suffering from exposure after an officer spotted a small boot in the snow. Newburgh police said Friday that the heavy snow made it hard for the boys to move, but they believe there was an air bubble in the snow pile that allowed them to breathe. (Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)