Rain returning to two Aussie states for a soggy weekend


Rain returning to two Aussie states for a soggy weekend

We're in the peak time for spring storms to kick off every afternoon and early evening.

While the southeast continues to ride a temperature rollercoaster, the focus of rain is returning to Queensland and northeast NSW.

The main rain days are Friday, Saturday and Sunday, before it retreats northwards early next week.

A trough of low pressure will take a very slow trip across the eastern states, with tropical moisture feeding in from both the Indian and Pacific Oceans.

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This will spectacularly combine northwards of about Sydney to produce widespread wet weather.

This system is slow moving and organised, so the rainfall should be on the slightly orderly side too -- a well defined band of rain that gradually moves eastwards.

But like all of these systems there is the highly unorganised element too -- thunderstorms.

We're in the peak time for spring storms to kick off every afternoon and early evening. As soon as they have a feed of moisture, you bring in the risk of heavy rain leading to flash flooding.

If you deplete these storms of moisture then you bring in the risk of a huge gust of wind instead. As soon as you bring in greater instability and winds that change direction from the ground to the top of the storm, then you bring in the risk of large to giant hail, and tornadoes.

All of these scenarios are possible in this outbreak of storms, but the activity is highly localised, only directly underneath the severe storm cell.

The trough dissipates on Monday, and the next lengthy quiet stretch is scheduled for Monday to Wednesday, a run of sunny days and generally light winds.

Meanwhile, further south, the temperature rollercoaster continues. Cold outbreaks continue to cross Tasmania every few days, sometimes reaching the southeast mainland.

This results in low level snow for the far south, and an Antarctic addition to the wind for the rest -- followed by very late season frost once the disturbance blows through.

The southwest has been rather quiet for several weeks, watching clouds to the northeast, but none of the rain coming their way. A brief spike of heat turned milder mid this week, once the trough pushed inland, but next week may bring a return to wet weather.

Instead of watching vast areas of showers, rain and storms over the interior, these may spread down into the southwest, with the next trough not only bringing the heat, but wet weather too. This activity is likely to kick off early in the new week.

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