Examples provide digital alerts associated with activation of a smart siren device of an emergency vehicle. An alert manager provides digital alerts to recipients when a smart siren device is turned on. The alert manager identifies any recipients within range of the smart siren device. The alert manager generates a notification including notification data. The notification is transmitted to one or more recipients within range of the emergency siren device. The notification data is used to generate a digital alert, which is presented to a user via a user interface device or other output device. The system determines when to provide digital alerts by applying user-configurable rules to notification data for customizable digital alerts to selected recipients. The digital alerts can include emergency vehicle indicators identifying the location of emergency vehicles having activated emergency sirens within digital maps displayed to users in vehicles.