Sign up for more than one emergency alert, Code Red is a start. Twitter alerts from Cal Fire, El Dorado County Sheriff, and the Placerville CHP have been reported as good sources of information, and may be faster and more informative for fire and smoke information than Code Red. Code Red is used to notify subscribers of evacuation needs.
Signing up is just one step you can take. Alerts don’t always work perfectly though so be aware of your surroundings. If you are concerned, call your neighbors. Neighborhood phone trees are a good thing to think about setting up ahead of time. Use your best judgement. If you feel concerned, leave. Don't wait to be told to evacuate.
Be sure to create defensible space, plan evacuation routes, etc. Alerts are great but there’s not always time to get them. Be ready to go when you need to and remember to evacuate early whenever you can.