Local officials are the best source of information when determining whether to evacuate or shelter-in-place. In the event of an emergency, individuals should listen to their radios and follow the directions of the emergency officials.
In general, sheltering-in-place is appropriate when conditions require that you seek immediate protection in your home, place of employment, school or other location when disaster strikes.
People should take steps to prepare in advance in case local officials direct you to evacuate. This includes having a disaster supply kit that is portable and can be taken with you.