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A broad low pressure region across the NT, inland Qld & to NSW will generate widespread showers & storms, many intense for NSW & inland Qld. A connected cold front crossing Vic & Tas is bringing rain, with showers to follow. A cold front crossing southwest WA is bringing showers.
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Today, 7:28AM UTC
1500km line of severe thunderstorms marches through NSW and Sydney
A line of severe thunderstorms bringing damaging winds, heavy rain and lightning crossed NSW and Sydney on Sunday. Warm, humid and unstable conditions combinined over NSW and inland parts of Queensland on Sunday, driving widespread severe thunderstorms. A series of low pressure troughs were also responsible for triggering these intense thunderstorms. 1,500km line of thunderstorms across NSW Satellite imagery on Sunday afternoon shows a continuous line of thunderstorms stretching nearly 1,500km from southern Queensland, across NSW and into the Bass Strait. Image: Satellite loop on Sunday afternoon, October 25, 2026 showing a continuous line of thunderstorms and lightning stretching nearly 1,500km over eastern Australia. Source: Weatherzone. These thunderstorms have moved from west to east over NSW, generating damaging wind gusts reaching: 113 km/h at Cabramurra 100 km/h at West Wyalong 94 km/h at Narrandera Airport 91 km/h at Wilcannia Airport 85 km/h at Nowra and White Cliffs As of 6pm AEDT, over 445,000 lightning strikes have been recorded across NSW today. Severe thunderstorms crossing Sydney Just before 5 pm AEDT on Sunday afternoon, the thunderstorms reached the far western suburbs of Sydney, with severe thunderstorm warnings being issued by the Bureau of Meteorology for the Sydney Basin. Image: Radar and lightning data as seen on the Weatherzone App on Sunday afternoon, October 25, 2026. Source: Weatherzone. Within 50km of Bankstown, over 1,200 lightning strikes had been recorded as of 6pm AEDT. Camden Airport recorded an 82 km/h wind gust as the thunderstorms rolled over. Another low pressure trough over southern NSW was also generating a secondary wave of thunderstorms that could move east into eastern NSW, including Sydney, on Sunday tonight. Thunderstorms could become severe, with an upper level low helping generate powerful winds in thunderstorms. Monday will see thunderstorm risk contracting to northeast NSW and Queensland as a gusty southerly change moves up the NSW coast, most likely reaching Sydney just after sunrise. Thunderstorms will likely be severe in places on Monday, with a risk of damaging to destructive winds, hail and heavy rainfall, most likely east of the ranges to the north of Port Macquarie, extending into the ranges and Darling Downs of Queensland, possibly including Brisbane. Check the Weatherzone warnings page for the latest weather warnings.
24 Oct 2026, 11:29PM UTC
Why ocean temperatures have dropped dramatically along the Sydney and NSW coast
A stagnant weather pattern over the past week has triggered a dramatic drop in ocean temperatures along parts of the NSW coast, with Sydney and central NSW beaches seeing some of the biggest changes. While warm northerly winds have pushed air temperatures towards 30°C, they've also driven a process known as coastal upwelling, bringing much colder water to the surface near the coast. High pressure dominates coastal NSW weather Over the past week, temperatures have gradually warmed across eastern NSW as a dominant high pressure system in the Tasman Sea edged eastwards. Warm northerly winds on the western edge of this high have strengthened, reaching a peak this Sunday, with the mercury expected to reach close to 30°C in Sydney. Image: Maximum temperatures forecast across NSW on Sunday, October 25, 2026. Source: Weatherzone. Warm and humid conditions this weekend will cause people to flock to the beach, with a chilling surprise awaiting in the water. Ekman transport and coastal upwelling of cold water The warm northerly winds that have been blowing over the past week have driven upwelling of cold water from the sub-surface of the ocean into coastal parts of NSW. Image: Sea Surface Temperature (SST) between Sydney and Brisbane compared between Monday, October 19, 2026 (left) and Saturday, October 24, 2026 (right), with regional estimates for Sydney, Seal Rocks and Port Macquarie. Source: OceanCurrent/IMOS This upwelling is driven by a process known as Ekman transport. Periods of sustained winds start moving the ocean's surface layer. When winds maintain a consistent direction for more than a day or two over a body of water, the top layer of water starts moving in the direction of the wind. This broad movement of water is affected by Earth’s rotation, also known as the Coriolis effect, and deflects to the left of the wind direction (in the Southern Hemisphere). For the East Coast of Australia, persistent and strong northerly winds deflect surface water away from the coast. To replace the displaced surface water, this deflected surface water is replaced by water from below the surface. Deep water is usually colder and more nutrient-rich than surface water. Coastal upwelling (and downwelling) becomes most notable the longer and stronger winds blow parallel to the coast. Image: Winds blowing parallel to the coast can cause upwelling (or downwelling) through a process called Ekman Transport. Source: Bureau of Meteorology During spring and summer, cold coastal waters can cause sea fog to form by rapidly condensing warm and humid air near the cold sea surface. Other impacts of coastal upwelling include algae and phytoplankton blooms, as well as shrinking and shrieking surprises for beachgoers entering the water. Conversely, downwelling is the result of usually warm surface water being pushed into coastal areas. Southerly winds usually bring cooler weather to eastern NSW, but they can actually cause coastal water temperatures to rise through downwelling.
24 Oct 2026, 5:20AM UTC
Storms brewing across SA and Victoria
Thunderstorms have swept across South Australia today, with more storms forecast through the afternoon and evening. The same system is now spreading into Victoria, where thunderstorms are beginning to develop. A trough moving through the region will provide the spark for storm development, with some thunderstorms expected to become severe, bringing the risk of damaging winds, large hail and intense bursts of rain that may lead to flash flooding. Keep an eye out for warnings in your area. Thunderstorms have already developed across large parts of SA this morning, with lightning reaching the suburbs of Adelaide over lunchtime, with 4282 lightning strikes recorded in the 50km around the city. Further thunderstorms are expected to develop this afternoon and evening across SA and extending east into Victoria. Image: Satellite image with radar on Saturday 24th October, 2026, 12 pm ACDT. Source: Weatherzone Spring is typically one of the most active thunderstorm seasons across southeastern Australia, with today's outbreak driven by a combination of warm air, moisture and atmospheric instability – favourable conditions for thunderstorm development. Rainfall expected with these thunderstorms is expected to be extremely variable, with some locations receiving only a few millimetres and others recording heavy falls in a short period of time. For instance, Ceduna on South Australia's west coast, recorded almost 9mm in one hour from 2 pm to 3 pm ACDT today, whilst Adelaide West Terrace has recorded 4.6mm since 9 am this morning. As thunderstorms continue to develop tonight, some locations could see rainfall totals climb rapidly, with the heaviest storms capable of producing intense downpours that may lead to localised flash flooding. Image: Rainfall accumulation over 48 hours for South Australia and Victoria, ending Sunday evening, according to the ECMWF model. Source: Weatherzone Given that conditions can vary dramatically over short distances, it is important to stay up to date with the latest forecasts and warnings through the weekend.