Due to significant moon positions alone we can say that over the kingtide+close perigee+new moon+southern declination interval of 13-16 November, heavy rain and flooding are likely from Central Plateau southwards, expected to cover much of the South Island. The widespread heavy rain may be associated with significant electrical activity, with squalls and thunderstorms also affecting central New Zealand.

Consequently the Tararua and Ruahine Ranges could receive torrential rain, flooding may affect parts of Wellington and rivers may burst banks in Wanganui, southern Wairarapa, Buller and Fiordland. Also, by the 17 November, westerlies may reach gale force in central and eastern regions. The November eclipse will probably add weight to these possibilities and there is plenty of time now to prepare.