THE WET conditions through eastern Australia are set to continue throughout spring - with mixed blessings for the agriculture sector.
While farmers in south-eastern Australia still have winter crop likely to benefit and summer croppers are excited about the prospect of good moisture profiles, those with winter crops in northern NSW and southern Queensland are concerned about the prospect of harvest rain.
Headers are already rolling in the Goondiwindi district with hot weather bringing in crops fast, meaning rainfall will be unwelcome until the crops come off.
In the short term the focus will be on a complex system moving down from the north-west of the continent in the middle of next week, potentially bringing large amounts of moisture with it.
At this stage, the Bureau of Meteorology is unsure where it is likely to track, although it is presently favouring NSW.
The rain will be useful for many NSW growers looking to finish crops, but some Riverina growers are in the unusual position of not wanting too much more spring rain as paddocks are on the verge of being saturated.
Longer term, Agriculture Victoria climate agronomist Dale Grey said some macro weather drivers were pointing towards wetter conditions.
In Ag Vic's The Fast Break newsletter he said the Pacific Ocean was making progress towards a La Nia event with increased easterly trade winds, further cooling of the eastern Pacific at depth and a further suppression of cloud at the date line.
He said to form a true La Nina the surface temperatures of the Pacific still have some way to go to be at La Nia levels and the pressure patterns need to decrease at Darwin.
"Around half the models surveyed predict a La Nina in coming months," Mr Grey said.
However he said the Indian Ocean Dipole negative event in the Indian Ocean was failing to fire up to be a strong event.
"Westerly trade winds have become closer to normal and the gradient of temperatures from Africa to Sumatra is closer to normal with not enough coldness forming off Africa," Mr Grey said.
Mr Grey said dry patches through eastern South Australia and north-western Victoria could be partially due to the Southern Annular Mode (SAM), which was been dragging rain triggers south through September.
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