New Zealand has more downpours and isolated thunderstorms on Wednesday and potentially the next couple days ahead before an almost week-long northerly quarter airflow moves in, starting this weekend.

This weekend or next week places in the South Island that would normally be frosty by mid-April (like Alexandra) have daytime highs in the early 20s and overnight lows in the double digits thanks to the northerly flow.

🤯Around midnight tonight Tropical Cyclone #ILSA (with a warm core) will have the same air pressure as a Southern Ocean storm (cold core).

🌀A vivid example of how the Tropical Cyclone has all the intense energy squashed into the centre – but the cold core storm fans out 3800km! pic.twitter.com/dJguYvohRR

— WeatherWatch.co.nz (@WeatherWatchNZ) April 12, 2023

In Australia Tropical Cyclone Ilsa has formed is expected to make landfall on Thursday PM north east of Pord Hedland.

The severe cyclone will then churn across the desert, falling apart before Alice Springs and likely reaching Queensland next week as just a few showers. The south east corner of Australia is especially Autumnal with windy, wet and colder changes in the mix.

Finally – next week north of NZ the tropics will be getting more interesting. No sign of any tropical cyclones yet, but low pressure may deepen enough around the Coral Sea to monitor closely.