Other people can give much more informed hurricane advice than I, but I can offer the following, based on one bad experience.
If you have a real potential problem, do everything you can to mitigate it in advance, or at least prepare for worst case scenarios. For years, we watched the hillside behind my shop trickle down, never thinking it would amount to much. When Ivan ripped through here back in 2004, the hillside behind by shop came cascading down and left us with 2-3 feet of mud to shovel and clean out - and we were lucky it was only that, and while we weren't there, either (I attribute this luck to clean living...). We recently had a few tragedies here in the Burgh with flash floods and falling trees taking lives, so be prepared.
That hurricane - and having a lot of family in Johnstown, PA, flood capital of the USA - have left me with a healthy respect for the power of water.
Good luck with the tree, Jim.