Abstract: A server system 150 for providing data to at least one mobile device 200, the server system comprising a processing resource 174. In a first embodiment, the processing resource 174 is configured to generate contour data representing a boundary of a respective area for which a weather-related parameter has substantially the same value, the contour data being sent to a mobile device 200. In a second embodiment, the processing resource 174 is configured to determine a plurality of parameter values of a model representative of weather-related data, and to filter the parameter values such that only some of the values of sent to a mobile device 200.

Abstract: A server system 150 for providing data to at least one mobile device 200, the server system comprising a processing resource 174. In a first embodiment, the processing resource 174 is configured to generate contour data representing a boundary of a respective area for which a weather-related parameter has substantially the same value, the contour data being sent to a mobile device 200. In a second embodiment, the processing resource 174 is configured to determine a plurality of parameter values of a model representative of weather-related data, and to filter the parameter values such that only some of the values of sent to a mobile device 200.

Abstract: A navigation apparatus 200 comprises a processing resource 260 configured to: determine a route to a selected destination; obtain weather-related data; and modify speed data for a plurality of route segments in dependence on the weather-related data. For each route there is a respective classifier that classifies the road type for the route segment, and the processing resource is configured to modify the speed data for each route segment based on the weather-related data and the road type represented by the classifier for that route segment.

Abstract: A server system configured to communicate with a device that is installable in a vehicle, such as a portable or in-built navigation device, comprises a communications resource for receiving vehicle data indicative of a parameter of the vehicle; and a processing resource operable to obtain weather data and to process the weather data and the vehicle data to determine at least one weather-related condition in dependence on both the weather data and the vehicle data.

Abstract: A server system 150 for providing data to at least one mobile device 200, the server system comprising a processing resource 174. In a first embodiment, the processing resource 174 is configured to generate contour data representing a boundary of a respective area for which a weather-related parameter has substantially the same value, the contour data being sent to a mobile device 200. In a second embodiment, the processing resource 174 is configured to determine a plurality of parameter values of a model representative of weather-related data, and to filter the parameter values such that only some of the values of sent to a mobile device 200.

Abstract: A server system configured to communicate with a device that is installable in a vehicle, such as a portable or in-built navigation device, comprises a communications resource for receiving vehicle data indicative of a parameter of the vehicle; and a processing resource operable to obtain weather data and to process the weather data and the vehicle data to determine at least one weather-related condition in dependence on both the weather data and the vehicle data.

Abstract: A server system configured to communicate with a device that is installable in a vehicle, such as a portable or in-built navigation device, comprises a communications resource for receiving vehicle data indicative of a parameter of the vehicle; and a processing resource operable to obtain weather data and to process the weather data and the vehicle data to determine at least one weather-related condition in dependence on both the weather data and the vehicle data.

Abstract: A server system 150 for providing data to at least one mobile device 200, the server system comprising a processing resource 174. In a first embodiment, the processing resource 174 is configured to generate contour data representing a boundary of a respective area for which a weather-related parameter has substantially the same value, the contour data being sent to a mobile device 200. In a second embodiment, the processing resource 174 is configured to determine a plurality of parameter values of a model representative of weather-related data, and to filter the parameter values such that only some of the values of sent to a mobile device 200.

Abstract: A server system configured to communicate with a device that is installable in a vehicle, such as a portable or in-built navigation device, comprises a communications resource for receiving vehicle data indicative of a parameter of the vehicle; and a processing resource operable to obtain weather data and to process the weather data and the vehicle data to determine at least one weather-related condition in dependence on both the weather data and the vehicle data.

Abstract: A navigation apparatus 200 comprises a processing resource 260 configured to: determine a route to a selected destination; obtain weather-related data; and modify speed data for a plurality of route segments in dependence on the weather-related data. For each route there is a respective classifier that classifies the road type for the route segment, and the processing resource is configured to modify the speed data for each route segment based on the weather-related data and the road type represented by the classifier for that route segment.