This is an example of using Leaflet.js and Oracle's ADF Model View Control framework. The weather patterns are derived from the GeoNames Web services API
http://www.geonames.org/export/web-services.html
The simple map - allows the enduser to type in cities around the world, and get an up to date weather status for their chosen location. A working example can be reviewied here : http://mrisney.com:8080/adfleaflet/faces/index.jspx