Storm

A deepening developing low has been approaching New Zealand overnight bringing isolated thunderstorms to the western North Island, torrential downpours to the west and snow to the South Island ranges.

This week is a very busy week weatherwise in the New Zealand area with a major southerly blast being the main feature but another tropical cyclone also getting into the mix.

Maps covering Snow, Wind, Rain, Cloud Cover, Thunderstorms & Temperatures over the next two days:

This week is an exceptionally busy weather week around the New Zealand area with a tropical cyclone (Keni) which may bring severe weather to Fiji in the coming day or two but then may merge to create an especially large low pressure system to the east of the country.

Most regions have a few more warm days ahead of them but a cold change arrives in Southland this weekend and then spreads nationwide next week.

It will bring a big drop in temperatures, over 10 degrees down for some regions compared to the afternoon highs of this week.

A westerly airflow across New Zealand today will encourage more late summer-like temperatures in the east of both islands, mainly the North Island.

Two tropical cyclones are to the north of New Zealand, 1 a number storm directly north of us called Josie and the other is Iris in the Coral Sea which Australians renamed over the weekend.

We're in the peak of the Southern Hemisphere cyclone season with three active tropical cyclones affecting the Australian area alone this week and more on the way for the zone north of New Zealand.

Tropical Cyclone Iris has today formed just west of Vanuatu and while not a major storm the tropical low pressure system may linger in the Vanuatu / New Caledonia area for a full week, potentially longer.