Sunday's national forecast - A lot of moving parts to today's weather


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A deepening large low in the Tasman Sea continues to push over New Zealand bringing rain, showers and isolated thunderstorms to the western North Island and more snow for the Southern Alps (although less than yesterday). Winds pick up over the upper North Island while winds are fairly light in the south as the centre of the Tasman Sea low starts to transfer across the island and over into the Pacific Ocean side.

NORTH ISLAND:
Rain and showers along the entire western and northern sides. Some heavy falls and possible thunderstorms, mostly western coast. Mainly dry in the east around Gisborne and Hawke's Bay although some spits may spillover to the east. Sunniest weather in the very east around Gisborne, warm there too and also warm in the Bay of Islands. Rain may become heavy in the afternoon in the west and central parts of the North Island. NW winds picking up, blustery in exposed northern areas. Conditions ease at night in the west then spreads further east. Warmer than average in the very north and north east.
Highs: 8 to 20

SOUTH ISLAND:
A bit of improvement for a time in the lower South Island today, generally light winds and mostly dry skies - although another cold one it shouldn't be quite as cold as Saturday was. A few showers linger in the east, around Coastal Otago. Rain and snow continues in the upper South Island mountains (mid Canterbury northwards generally).  Rain and showers continue on the West Coast but do ease back to some degree later. Fairly light winds around the island today.
Highs: 3 to 14

- WeatherWatch.co.nz