DO NOT, as Delancey said, leave the boat with her stern to the wind. Do remove the dinghy from the davits. Remove everything from the dinghy, and either lash on deck, or fill with water
and secure it fore and aft athwart the stern as low as possible, so the wind can't get under it and flip it. It will then be in the lee of the boat, and may safely make it through. Stow the engine
below, or possibly in the lazarette, if it will fit.
Remove ALL canvas
, and sails.
Triple up on the dock
lines, and have some go to piles. Are your cleats
through bolted? Ones that are not are more likely to get pulled out. Use chafe gear
on the cleats
, flip-flops are used for this some places, but the concept
is to use chafe gear
at all the chafe points.
Double or triple the number of fenders, if you're not in a double fingered slip. They sometimes pop, they also, sometimes pop out from between you and the dock
If you have roller furler
foils, stabilize them.
Make sure your cockpit
drains are clear.
Make sure your automatic bilge pump
strainer is clean, and the hose clear, power on. You'd be surprised how much water comes in through the mast
to wherever your boat has it drain to. (Ours goes to the shower sump
, and its automatic bilge
pump). That water, which will come in, needs to be able to leave.
If you prepare for the worst, then there's no more you can do, except, if you stay with the boat, some of the time, you will be able to help yours, and also, perhaps, others, whose boats threaten yours, or are friends. S/V Shameless did that for the hurricane
that hit San Carlos
a couple of weeks ago, and made a video of it when it was in the 40 knot
Custom Search for s/v shamelss posts should get you there, if you want to see some of what to expect in the 40 knot
Good luck with it.