Yes, prepare for power outages.  I live about 200 Mi north of the Mississippi Gulf Coast..  My power was out for 3 1/2 days.  My parents' power was out for a week and we live in (the same) town.  Others in more rural, but nearby, areas were out for up to 2 weeks.
Remember that in most instances, with widespread power outages come boil-water notices, so don't forget to stock up on drinking water, too.
>>My town was lucky, our water system never lost pressure, so we never had any problems.  
Stay Safe,
JimJr