Two big highs and two big lows will dominate NZ and Australia’s weather in the coming days with both high pressure zones slowing down both of those lows.

NZ: The sub-tropical low (currently near Tonga) will drift down towards the North Island this weekend – it may brush some regions with wind and rain but still isn’t entirely locked in.

Australia: Significant rain will accumulate over parts of VIC and TAS in the coming days with 150 to 200mm now forecast. One positive is that it blows through by Friday with a windy westerly change and showers behind it. We have special rain accumulation maps.