The heatwave in southern states has been doused by rain as temperatures rise to near record levels in Sydney today.
At the moment a pulse of the MJO lies over the Indian Ocean and while most climate models indicate eastwards movement is likely in the coming week or two, there is disagreement as to its strength and rate of movement in the coming fortnight.
A mass of heat from central Australia will sweep across the nation's south-eastern states between now and Australia Day
The Madden-Julian Oscillation is expected to remain fairly weak in our area for the rest of January.
A mass of hot air swept across NSW this week as a low pressure trough drifted over south-eastern Australia.
Good January rain early in the year has been received in the northern region, especially along the Northern Tablelands, invigorating summer crop growth.
The official onset of the monsoon in Darwin occurred in the week before Christmas and about a month earlier than last year.
The biggest challenge in making weather predictions in the coming years will be those associated with global warming.