This parameter estimates the probability of a tropical cyclone. It uses wind, precipitation and pressure data from ensemble forecasts.
Get the netcdf file for the evolution of the probability of tropical cyclones over the next nine days in six hour steps. Below is a gif generated with an external tool to visualize the content of the netcdf file.
An example for the cyclone probability in the South Pacific Ocean close to Christchurch, New Zealand, as a csv output. The example is the cyclone Gita which hits New Zealand around the 20th of February 2018.