Have an Evacuation Plan
First, it goes without saying you should have plans for things like Fire Drills. Consult your local fire department for tips, but in general make sure you and your family (including kids) understand what a fire/evacuation drill is, how to safely and quickly exit the building, what to do if you get trapped, and where to meet outside afterwards. Practice this a few times a year so it’s second nature, but hopefully you never ever need to do it for real.
Now to take that one step further - take some time to think through different scenarios that could happen where you might have to evacuate your area/town (God forbid they ever do), and plan how you would react. If a wild fire or flood was happening nearby, how would you and your family evacuate your area? Take some time to familiarize yourself with area roads and which ones would be the best to evacuate by - make sure you also come up several backup plans too as your first choice exit plan may be blocked off. Also be aware of which roads may be most prone to fall victim to a natural disaster - for example, a low-lying road near a stream would be likely to flood, and probably shouldn’t be counted on as an exit road in a weather emergency. Keep maps in your car too as phones/GPS may not work and it would be beneficial to have a paper map to consult. It's also important to have cash on hand as ATMs/credit card machines may be down as well.
Always try to keep your car gas tank fairly full too, that way you’ll be ready to go anytime and won’t have to worry about running out of gas or being able to buy gas (as gas stations may be out of gas or there could be long lines) wasting valuable time for your family to make an efficient exit.
Hopefully you will never fall into a scenario where you’ll ever have to use any of your emergency supplies or shelter/evacuation plans, but it’s best to be prepared. Make sure to re-evaluate your plans and supplies regularly as roads and situations can change and supplies will expire over time (check those expiration dates on medicine, first aid items, and food/water). May you all stay safe and well!