Meteorologists have warned that a “La Nina-like” weather pattern will dump massive rains over all main cities this week, and much of the nation is set for a deluge.
A negative Indian Ocean Dipole (IOD) and a positive Southern Annular Mode will produce rain, according to meteorologist Ben Domensino, along with a large low-pressure trough and cold front mixing with an unsteady atmosphere.
When storms stretched 3000 kilometers across much of the nation early this morning, an unusual Winter thunderstorm outbreak is expected to hit this afternoon and early evening.
Storms and heavy rains are expected in seven states later this afternoon and evening, with flood warnings issued in parts of Victoria.
Minor flood warnings are issued for the Kiewa, Latrobe, and Yarra Rivers.
🌩️Thunderstorm forecast for today, Mon Aug 29 🌩️
Severe storms likely about southwest of the state today, with large hail, damaging wind gusts the main risks. Stay up to date on any warnings issued https://t.co/CinugnxqkN #Thargomindah #Windorah #Birdsville #Quilpie #Cunnamulla pic.twitter.com/7ejW1VTJGB
— Bureau of Meteorology, Queensland (@BOM_Qld) August 29, 2022
Warnings of damaging winds, large hail, and heavy rain have been issued for storms and rains expected to affect parts of the Northern Territory, Queensland, New South Wales, the ACT, Victoria, and South Australia.
In western New South Wales, supercell thunderstorms might also produce winds and enormous hail.