A system and method for dynamic alternative geographic route plotting using global positional satellite data is disclosed. The present system and method provide for using a voice selection/recognition engine to extract information relating anomalous conditions from radio broadcasts in the primary band of broadcast radio. The anomalous conditions are then sent to a GPS device which dynamically provide alternative routes. Further, the present system and method also provide for receiving information relating to anomalous conditions via the sub-band of broadcast radio. Anomalous conditions received via the sub-band are also sent to a GPS device which dynamically provide alternative routes.