There has been considerable talk of La Nina and its potential to bring substantial rain across Australia this year.
I’m one of the main mouthpieces for the climate driver as the Bureau of Meteorology continues to hold its cards close to its chest.A new climate driver is setting up to our west and its ready to complicate the forecast.For some time now models have been suggesting that the dry phase of the Indian Ocean Dipole could take shape from the end of autumn and reduce our rainfall.
In recent days the forecast models have updated so climatologists are now even more certain of this event taking shape and continuing into the start of winter.These bring cloud and rain from our northwest and spread across the centre and south and onto the Great Dividing Range. Therefore, other climate drivers have guided Australia’s weather patterns and the eastern side of the nation has experienced its wettest December to March since 2010, with 24 per cent more rain than normal.
Looking ahead, under the Pacific Ocean’s surface there is plenty of cooler than usual waters that most forecast models anticipate will help create a La Nina event.Australia usually sees wetter than normal weather during winter and spring – often, but not always, extending into summer. Therefore, we’re likely to see less rain in the west, centre and south through the back end of April and into May, with a decent chance of those regions continuing to see that through winter.
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