Prosper in a dynamic world
Search

Southerly surges across the southeast

It’s a chilly and showery end to the working week across southeastern Australia, after a strong surge of south to southeasterly winds pushed cool air across the region overnight.

  • Melburnians awoke to some welcome rain with 6 mm in the gauge in the 24 hours to 9 am, most of it falling around dawn.
  • After our story yesterday about the desperately dry start to 2024 in Tasmania, Hobart also saw a drop or two overnight with 1 mm in the city and 6.6 mm up on kunanyi/Mt Wellington where it was almost but not quite cold enough for snow, dropping to a minimum of 1.4°C.

Those sorts of moderate rainfall totals obviously won’t alleviate the severe rain deficiency for the year to date, but it was better than nothing.

The map below shows rainfall across Australia to 9 am Friday, with showers right across Tasmania and most of Victoria, coastal and northern NSW, and parts of Queensland.

Source: BoM.

The synoptic chart below shows a cold front east of Tasmania that stayed south of the mainland, but as mentioned, there’s enough cool air circulating around that high centred over the Great Australian Bight to give the southeast of the country a distinctly autumnal feel.

Meanwhile as we write this story around 10 am on Friday morning, Sydney is mild and sunny and approaching 20°C under the influence of westerly winds but by lunchtime, a southerly change will blow into town making things feel a lot cooler.

Sydneysiders got a bit of a surprise on Thursday with the severity of thunderstorms that whipped through the city in the early afternoon. The potential for storms was always on the cards yesterday, but the speed with which they developed and the hail in some suburbs caught many residents off guard.

Some showers will accompany the southerly to Sydney this Friday afternoon and stick around for 24 hours or so before clearing by Sunday. In Melbourne, the clearing pattern has already begun and a cool but mostly fine weekend looms ahead.

Latest news

Satisfy your weather obsession with these news headlines from around the nation, and the world.

Rapid El Niño signal accelerating risk for Australian businesses

El Niño–favourable conditions are gathering pace across the tropical Pacific, with key ocean indicators approaching threshold levels and early atmospheric responses emerging.  While uncertainty remains around final El Niño strength, historical analogues show that even weak events can generate widespread impacts, including reduced rainfall, warmer daytime temperatures, increased frost risk, elevated fire danger, reduced tropical cyclone activity, and more. Industries including […]

Australia’s 2025–26 Cyclone Season: Slightly Above Average, Dominated by Severe Systems

Australia has just experienced a highly impactful tropical cyclone season, with more than 60% of systems reaching severe intensity, causing widespread disruption and damage to communities and multiple industries across northern Australia.  The 2025–26 Australian tropical cyclone season officially ran from 1 November 2025 to 30 April 2026. During this six-month period, Australia saw 11 tropical cyclones, with nine […]

What does a ‘super El Niño’ mean for Australia’s businesses?

There are signs that a very strong, or ‘super’ El Niño could develop in the tropical Pacific Ocean later this year. So, what does this mean for Australia’s weather during the second half of 2026? El Niño on the horizon The tropical Pacific Ocean is currently in a neutral state, meaning neither El Niño nor […]

How does DTN help businesses monitor bushfire induced pyrocumulonimbus thunderstorms that ignite more fires?

Intense heat from bushfires during elevated fire danger days can trigger fire-induced pyrocumulonimbus thunderstorms that ignite additional fires. In early January 2026, an extreme heatwave sweeping over southeastern Australia brought catastrophic fire danger to Victoria. Intensely hot bush and grass fires spread erratically and quickly in hot, dry and gusty winds, with pyrocumulonimbus generating lightning, […]