Double tie, extra spring lines in BOTH directions, chafe gear if you have it, deploy all your fenders.
Tie down anything loose. This is a case of "you can't have too many lines on the boat".
Strip canvas, check you bilge pumps.
Get out of Dodge. If something goes bad you will not be able to stop it.
Ex boats: 1983 40 Albin trunk cabin, 1978 Mainship 34 Model 1
New Port Richey, Fl