A method is provided for providing weather data to a vehicle comprising the steps of: (a) receiving a broadcast signal containing weather data referenced to a plurality of cells arranged in a grid corresponding to a geographic map; (b) determining the present location, speed, and direction of the vehicle;...http://www.google.com/patents/US7949330?utm_source=gb-gplus-sharePatent US7949330 - System and method for providing weather warnings and alerts
System and method for providing weather warnings and alerts