@Rose59
That would be nice that you give a link to the NZ weather website or a screenshot.
In your area for tropical cyclones Windy uses data from BoM (Australia), ECMWF, and MetOffice (UK).
May be they miss this tropical cyclone.
But even the JTWC does not mention the TC you are talking about.
https://www.metoc.navy.mil/jtwc/jtwc.html