Further information is available at these web sites about what to pack for an emergency, and how to plant your garden to be fire-safe
Napa County emergency notification is called NIXLE. The service is free and you can sign up at ReadyNapaCounty to have alerts sent to phone and/or via email. More information on the County Alerts: Nixle Alerts / Advisories | Napa County, CA
Atlas Peak Firesafe Council is part of Napa Communities Firewise Foundation, which keeps content up to date:
Napa Firewise
CalFire
ReadyForWildfire
CalFire Personal Wildfire Evacuation Plan Document
The following are sites that provide up to date information regarding fire status including camera views and real-time monitoring of messages from the authorities:
AlertWildfire
SmokePoint
WatchDuty
Firesource - Live Wildfires on the App Store