American meteorologists have officially called a La Nina event in the Pacific Ocean but the BOM is holding off on a similar call - for now.

Welcome rain has soaked the Grampians regions right as reserves were beginning to get depleted, setting up hopes of a ripper spring.

Western Victoria and SE South Australia were the headline acts in terms of weekend rain, but it may be western NSW's turn this week.

Australia is likely to receive stronger and more frequent El Nino activity over the coming decades, according to a new study.

There is a 60 per cent chance of a weak La Nina event developing during September to November 2020, according to the World Meteorological Organization.

August rainfall has turned around the cropping prospects for Victoria, especially in the Wimmera and Mallee where it was dry all July.

Snow fell as low as 500 metres above sea level as eastern Australia shivered through a late winter cold snap.

There is unusually strong consensus from long term weather models suggesting a wet spring for eastern Australia - but farmers want evidence.

Most regions are enjoying reasonable rain this year - meaning there has never been a better time to look at drought policy according to USQ.

Odd images on BOM rain radars got tongues wagging this afternoon, but the end result was positive for croppers looking for rain.