Catastrophic Pam, South Pacific's strongest tropical cyclone

The strongest tropical cyclone on record in the South Pacific, Tropical Cyclone Pam, a Category 5 super storm, hit Vanuatu last night causing deaths and destruction. This morning Pam had a central pressure as low as 899hPa and was gusting up to 335km per hour at its centre. It is one of four cyclones unusually affecting the South Pacific at the same time. NASA images.