Why Victorians should brace for more wet and wild weather
Pack your umbrellas. A negative Indian Ocean Dipole event is currently underway in Australia. This is what the weather system means for Victoria and why it’s going to keep raining on our parade.
"Marge, the rains are here"... and there’s more on the way.
Victorians are bracing for more wet weather as back-to-back climate events converge to dampen the state’s spirits until the end of the year.
The Bureau of Meteorology has confirmed a negative Indian Ocean Dipole (IOD) is currently underway and will most likely continue into late spring, bringing with it increased rainfall over much of southern and eastern Australia.
Dr Andrew Watkins, Bureau of Meteorology senior climatologist and head of long-range forecasting, says the rainfall outlook for the coming three months is for wetter than normal conditions across much of the eastern two-thirds of Australia.
“Typically, a negative Indian ocean dipole sees wetter than normal winter and spring conditions across southern and eastern Australia,” he says.
It’s a wet weather double-whammy for Australia’s eastern board, with the above average rainfall caused by the negative IOD increasing the chance of La Niña forming in the latter half of 2022.
These predictions for a wetter and warmer spring come after Australia experienced a negative Indian Ocean Dipole in 2021. This saw the country record the wettest year since 2016, and the wettest November on record.
It’s the first time since the 1960s Australia has experienced a negative IOD for two consecutive years.
Here is everything you need to know about the current Indian Ocean Dipole event and what it means for Victoria's weather.