Evacuations are called by local authorities based on the expected storm surge. If necessary, contraflow traffic lanes will be set up on Interstate 10 west of Houston and on Interstate 45, US Highways 59 and 290 north of Houston. When you hit the road, follow the road signs carefully.
Before leaving, make sure your house is secure. Take food and water for the trip because stores might not be open along the route. Fill your car up with gas as soon as possible. Bring extra cash in case ATMs are not working. Notify family members about your plan and final destination. And be patient. Travel times will be significantly longer than usual. You can check to see if you live in an evacuation zone and download evacuation route information here.