The problem w/hurricanes & evacuation orders is that it is usually too late to evacuate if you wait for the order. You will be part of the herd.

I watch the predicted path/cone, weigh the predicted strength for landfall, make a decision at HurCon IV (72 hours from possible landfall) as to go or stay. I'll normally start packing when the decision to go is made and then we will leave the following morning.

Along w/packing, we will complete the checklist preparations for HurCon's III, II, & I for the home and for the evacuation. We will normally head out on a west-northwest vector.
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QMC, USCG (Ret)
The best luck is what you make yourself!