I still need an explanation from whoever posted that moorings are safer from slips in a storm.
From my earlier post;
Less danger of wave action popping out a fender, and risk of dock chafing against boat.
During Irene, many people were very concerned that the storm surge would combine with high tide, and the docks would float off their pilings. Storm surge should not be as much of an issue with a good mooring.
Of course this assumes that the mooring is up to the task.