How to apply k-means cluster analysis on cyclone trajectories in MATLAB?

I'm currently doing a master research on extratropical cyclones over the mid-latitude region in Australia. I got winter cyclone tracks data from 1979 to 2016 and I'd like to cluster cyclone trajectories into about 3 or 4 groups.

I've tried to apply MATLAB's k-means function to cluster the initial points of cyclones into 3 groups, while I'm not quite clear about how to do this analysis on the trajectories.

If you have some experience with the cluster analysis on trajectories in MATLAB, would it be possible to provide some suggestions? Thanks a lot.

[KSSV]

A cyclone trajectory is a path, you will be given with (lon,lat) at different locations for one track. Your tracks might even collide/ cross with each other. I am not sure why you want to apply kmeans to these tracks?