Seasonal forecasts — like suggestions a La Niña is on the way — are not designed for major business decisions. But it is good to be aware of what is driving weather.
Weather and climate forecasting cannot provide all the answers. The value of a particular forecast strongly depends on what decisions need to be made and what economic circumstances decisions are made in.
The frequency and intensity of rainfall events and flooding are increasing. That means more and faster developing droughts that can cause crop failure and destructive wildfires within weeks or months.
Once the rain clears the southeast, a period of settled weather follows. The monsoon has arrived in the north, and will continue to encourage a lot of wet weather there.
As Cyclone Jasper makes landfall north of Cairns (spreading rain across far northern Australia), there are troughs bringing showers and heavy storms to the eastern states.