Since there's a boatyard nearby, I'd suggest having her hauled. And for you personally to make sure that she's well supported & secured against strong winds once she's on the hard
As to having to take a day off of work to do this, you'd have to take more than one day off in order to sort things out if she fell prey to the storm when tied to the dock, right?
Plus, were it me, I'd want to check on her a few times both before & after the worst of the storm anyway. And also during it, if it's safe to do so. That way I could adjust her lines, add more of them, & check the ones in place for chafe, etc.
Strip everything off of the boat that you can, including the main. As even rigging
wires create a lot of force when subjected to high winds. For example, when it's blowing 60kts, 1sqft of area creates 15.5lb of force.
Force = Area (in sqft) x Wind Speed squared
(in knots) x 0.00432
You can easily get 10'+ of storm surge (increased water depth) even if the storm only gets within a few hundred miles of you. Which, when coupled with only moderate winds, can make for some substantial waves. As when it's blowing hard, it doesn't take much fetch for large ones to form. With waves in the 2-digit range, height wise, not being uncommon.
Chafe protect your lines everywhere that they touch anything, & everything (except your cleats). Including the sections tied around pilings. Since in heavy weather
they're going to move to some no matter how tight you tie them on there.
Some people will even wrap a length of chain tightly around a piling several times, & then connect both ends of the chain together with a shackle, & then shackle a dockline which has an eye splice with a thimble in it, to this. So as to eliminate any possibility off chafe on these dock lines. Especially as the boat will be yanking on them pretty hard.
More anchors are better, & the longer you wait to buy them (or buy more line, chain, & fenders), the harder they will be to find. If you can find them at all. You can't have too much line.
With one side of your boat tied to the dock, you might use one heavy anchor as a breast anchor, & another anchor (or two) set in the direction of the strongest projected winds. Also, it can't hurt to check how well your anchors are set by diving
When you set your anchors, place them far enough out to allow for the increased water depth caused by the storm. Including using sufficient scope so that they'll hold well as the water deepens, & so that there's enough rode
to cope with these depth changes. Plus of course, chafe protect such lines heavily. Along with making sure that shackles are safety
wired shut, & following other good anchoring
EDIT: This changing water depth is one of the reasons that I'd prefer to be nearby to check & adjust her lines & anchor rodes. Ditto on their chafe protection, as well as the bilge
pumps & cockpit
Take everything that you can out of the boat, just in case the worst happens. And to prevent damage to things inside her should she suffer partial flooding due to leaks
from heavy rains, & other causes. Particularly as lots of fasteners, fittings, ports
, & hatches will be flexing more than they ever have before. Which can create water ingress routes that are vulnerable to heavy rains, & to waves breaking on the boat.
Also double check all of your bilge
pumps, to include ensuring that the hoses are clear, & that the switches are working. As well as your batteries being topped off.
And along with this, ensure that your cockpit
drains are running freely. Plus you may wish to install some guards around them that prevent debris from getting near the scuppers themselves. As many boats get flooded or sunk when their cockpit drains get clogged by storm debris, & then can't keep up with the heavy rains associated with such storms. As most such storms tend to dump lots of debris in "inconvenient" places, like in cockpits. Thus hindering or stopping things from draining.
If possible, put multiple swatches of reflective SOLAS tape on the boat's topsides just below the hull
to deck joint, at several spots, 360 degrees around her perimeter. And also do this on the mast
around most of it's circumference, both near the lower spreaders, & up near the masthead as well.
This way, should she break loose, she'll be easier to find. Ditto if she winds up partially submerged. So that one would need to find her via her mast
. Especially if she winds up high & dry on a muddy bank, partially hidden by foilage. So that the top of the spar is all that's easily visible.
This is also good a good idea for any & all boats, be they in the path of a major storm or not. As it saved my boat when she decided to try & head
PS: BoatUS has plenty of pointers on this. Simply go to their website & type "Hurricane Prep" into the search window.
BoatUS.com Search Results