Selective suppression of access probe transmission in response to external impact event

A method and system for managing access probe transmission in a wireless communication system. Upon determining that an external impact event, such as a severe weather event, natural disaster, criminal activity, has occurred, base stations may wirelessly broadcast a control signal that causes certain wireless communication devices served by the base stations to suppress transmission of access probes, while allowing other wireless communication devices served by the base stations to still transmit access probes. In a given coverage area, suppression of access probe transmission by one or more wireless communication devices may thereby free up access channel capacity to facilitate calls or other communications by other wireless communication devices, such as first-responder devices for instance.