Hurricane advise?

It's largely guesswork. You say it's likely to only be a glancing blow.
From which direction should you expect the strongest winds? Trailers are designed to handle it best on the front, not the sides or rear. Can you turn the trailer to help with that? Will your house shelter it from predominant winds?
I Sat out Andrew on SW155th st. The eye passed just a couple miles south. I had my vehicles pointed to face into the wind, and they were both still there the next day, with damaged glass, and one was slid about 50' but it was still on my street.
If you have the option, take advantage of the wheels under the trailer, and take the family up to Charleston for the weekend. If that's not an option Tape the windows, expect the roof vents and skylights to be damaged, tape them as best you can, and have your insurance companies phone number handy. Remember Cell service may be spotty for the first week or two after a storm, so have those numbers available beforehand.

dockmasterdave wrote:
I would say, if you are expecting winds you wouldn't drive it in, move it.It is on wheels.
If the winds here are predicted at over 50 MPH my trailer will be safely locked in a commercial building. If I didn't have that option I'd take a long weekend trip to the panhandle or maybe AL/TN.
We did for Irma and we live in south Naples near Marco Island.
We got hammered here, and had no power for 2 weeks when we got back. Fired up the generator and lived in the trailer. Really glad we protected that trailer. YMMV

Not the panhandle, some of the current models show Dorian going through Orlando, into the Gulf, restrengthening and hitting again in the middle of the panhandle. It's too far out to know the accuracy of those models but it's a definite possibility.

Good advice above.

for what its worth category 1 wind speed is only a bit more than highway speeds. chock and block it, stow everything and close it up. id be more concerned about the shingles on your sticks and bricks.

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I would say, if you are expecting winds you wouldn't drive it in, move it.It is on wheels.
If the winds here are predicted at over 50 MPH my trailer will be safely locked in a commercial building. If I didn't have that option I'd take a long weekend trip to the panhandle or maybe AL/TN.
We did for Irma and we live in south Naples near Marco Island.
We got hammered here, and had no power for 2 weeks when we got back. Fired up the generator and lived in the trailer. Really glad we protected that trailer. YMMV

While you're waiting for advice on how to prep your TT, contact your insurance carrier.
Maybe they can advise you on what to do prior to a hurricne.
Youtube is another possibility for advice.
Hopefully it will miss you but, it's best to be ready.