Distribution of sensor data among a group of wireless communication devices

A wireless communication network exchanges wireless data with wireless communication devices and transfers device data indicating device locations and device status to a network server. A sensor system detects a trigger condition and responsively determines proximate wireless communication devices. The sensor system transfers indications of the trigger condition and the currently proximate wireless communication devices to the network server. The network server processes the device data, trigger condition, and proximate wireless communication devices to generate notice data indicating the trigger condition and to select at least one of the wireless communication devices for receipt of the notice data. The network server transfers the notice data to the selected wireless communication devices over the wireless communication network.