Australia’s weather bureau said on Tuesday a La Niña weather phenomenon had developed in the Pacific Ocean for the second year in a row that could bring above average rainfall across the country’s center, north and east.
La Niña is typically associated with greater rainfall, more tropical cyclones and cooler-than-average temperatures in the equatorial Pacific Ocean.
The weather event could boost Australia’s wheat yields. In September, the country lifted its wheat forecast for this season by 17% to near record levels citing favorable weather.
A wetter than usual end to the year could also result in a less severe bushfire season.
“Back-to-back La Niña events are not unusual, with around half of all past events returning for a second year,” Andrew Watkins, the Bureau of Meteorology’s head of Operational Climate Services, said in a statement.
La Niña events normally last about a year but climate models suggest this year’s pattern will be short-lived, persisting until the late southern hemisphere summer or early autumn 2022, Watkins said.
“Every La Niña has different impacts, as it is not the only climate driver to affect Australia at any one time,” he said.
The United States weather forecaster last month said La Niña conditions had developed and there was an 87% chance of the weather pattern continuing through the December-February period.
In Australia, a low-pressure system early this month dumped 50 to 150 millimeters (2-6 inches) of rain in some parts of the southeast, the highest in years, triggering floods across parts of Queensland and inland New South Wales states.
“A La Niña should translate into a lower risk of bushfires and extreme heatwaves over the eastern states this summer … however, we can expect an increased likelihood of flooding rains and tropical cyclones,” said Matthew England, a professor from the University of New South Wales Climate Change Research Centre.
(Reporting by Renju Jose and Byron Kaye; editing by Raju Gopalakrishnan and Lincoln Feast.)
Photograph: The Department of Environment, Land, Water and Planning and Country Fire Authority (CFA) crews monitor fires and begin back burns between the towns of Orbost and Lakes Entrance in east Gipplsland on Jan. 02, 2020 in Australia. Photo credit: Darrian Traynor/Getty Images.
Topics Australia
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