The Bureau of Meteorology has issued a warning to Australia's east coast to brace for another La Niña weather event this year. 9News
Weatherzone meteorologist Andrew Schmidt told nine.com.au that a third consecutive La Nina would be very uncommon, but wouldn't quite break the laws of nature.La Ninas are driven in large part by warming sea surface temperatures in the Pacific, which the Bureau noted were increasing in yesterday's release.
La Nina events historically bring more wet weather to Australia's east coast, with the Bureau predicting higher falls than normal through spring and summer. Nonetheless, that brought a "major risk" of flooding, particularly to previously affected areas such as Queensland's south-east and northern New South Wales.More rain is also a consequence of a negative Indian Ocean Dipole - measured by sea surface temperature differences between two points.Typically, La Nina events bring an increased risk of tropical cyclones, as those Queenslanders who battled through Yasi's landfall in 2011 have good cause to remember.
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