For many months I was reporting this phenomen simply by looking at Climate Reanalyzer. Meanwhile there was absolute silence about this from NIW, NZ government and media.
The few mentions in the media linked this to the el-Nino but never mentioned any link to climate change.
Turns out I was 100 % right on this all along.
Wasn’t that hard really.
The unprecedented 2015/16 Tasman Sea marine heatwave
29 May, 2017