How do bomb cyclones form and what makes them so dangerous?

Explosive cyclogenesis in the W Pacific! This video of the Himawari-8 RGB air mass product shows the explosive development of a low pressure system in the W Pacific. Multiple shortwave troughs are shown moving off of Asia and merging with a developing low pressure system near Japan. The system then moves over the Kiroshio Current E of Japan which injects low level heat and moisture into the system and creates a very unstable vertical profile. The system then rapidly intensifies to a hurricane fo