Tropical Cyclone Judy is slamming into Vanuatu and it's bringing wind gusts well over 150 kilometres per hour.

Cyclone Judy is already damaging homes, bringing down trees, and causing widespread power cuts.

It's currently a category three storm, but is forecast to intensify to category four later today.

Flights are being cancelled, schools are closing - the same with banks - and government workers have been told to stay home.

Radio Vanuatu was forced offline following a power cut.

Worldwatch's Max Towle heard the latest from journalist Dan McGarry in Vanuatu.