More and more it appears Dorian, then hurricane or even major hurricane strength, will make landfall the United States late in the Labor Day weekend. Florida is the most likely target.
I'm working on a comprehensive update which I expect to post around 11:15 EDT.
Note: If you are planning a Labor Day trip to the east coast of Florida, you may want to reconsider. You can check and see if the airline is offering waivers (refunds).