Moisture meter is worth it's weight in gold.
I'm south of you in Florida on the Treasure Coast. Having worked for the power company in FL for 35 yrs (now retired) and traveled to many other hurricane hit areas throughout the US ... you can only prepare and protect your TT up to a certain point, then it's either put it in a bunker or leave.
Most TT's I saw "destroyed" were rolled over by the wind. Those who put the front into the forecast direction of the strongest wind fared best.
Beyond wheel chocks, digging a trench for the tires to sit in keeps the TT from rolling. Of course the trench fills with water so you have to have a truck capable of pulling it out. Also deflating tires lowers the profile. Drop the tongue jack all the way so the TT is more of a wedge creating a downward force from the wind.
Screw anchors have to go deep 5'-6' to work well... garden anchors don't cut it.
I'm not a fan of securing a TT to a tree. Guess why? See travel trailer rolled over pulling tree on top of it.