Authorities will not ask you to leave your home unless they have reason to believe you are in danger.
If you are ordered to evacuate, take your emergency kit, essential medications, copies of prescriptions, personal identification of each family member, copies of essential family documentation and a cell phone with you if you have one. Use travel routes specified by local authorities.
If you have time, call or email your out of town contact. Tell them where you are going and when you expect to arrive. Once you are safe, let them know. Tell them if any family members have become separated.
If you have time, leave a note telling others when you left and where you are.
Shut off water and electricity if officials tell you to.
Leave natural gas service "on" unless officials tell you to turn it off. If you turn off the gas, the gas company has to reconnect it. In a major emergency it could take weeks for a professional to respond. You would be without gas for heating and cooking.
Take pets with you.
Lock your home.