Webcams apart from their regular functionalities such as watching holiday destinations or current situation on the road, can be used to observe live atmoshperic phenomena that occur in any corner of the world. All you need is two maps. The first map is for example a current storm report map, hurricane map or aurora map. The second map is the camera map.
An exemplary map of lightning discharge:
Maps of hurricanes, cyclones and strong winds:
On the second map you can find marked locations of online cameras.
All you need to do is compare both maps, then go to the Internet camera located in the close vicinity to the observed phenomenon.
That's all. Enjoy your watching :)