As a frequent traveller to Florida, Johnny Jet is paying close attention to Hurricane Dorian's expected reach of landfall.
He's put together a list of Travel Resources here - https://www.johnnyjet.com/hurricane-dorian-travel-resource-page/
App of the week - Max Tracker Hurricane. Free iOS and Android.
Tips - Always have a full tank of gas. Also, keep miles in the bank just for this kind of reason. Usually, airlines will allow you to use miles in an emergency, even if they charge you more in miles for it. They should also allow you to rebook without fees.