Australia’s alpine snowpack reached a historic low
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On Saturday afternoon the western suburbs shimmered beneath a dry north-westerly wind. Badgerys Creek reached 33°C shortly before 2pm as Sydney experienced an extraordinary early spring heat surge.[2]
The heat arrived beside a starkly different scene in the Snowy Mountains. Thredbo was forecast to receive snow while alpine resorts prepared for unusually early closures after a warm winter.[4]
Sydney suburbs reached 33°C on 5 September, up to 13°C above the September average. The Bureau of Meteorology station at Observatory Hill has operated since 1858.[1]
The Observatory Hill record reached 32.1°C at 2.33pm. Sydney Airport reached 32.4°C while several western locations exceeded 33°C.[2]
Badgerys Creek recorded 33°C at 1.52pm, providing a clear measure of western Sydney’s heat exposure that afternoon.[2]
Meteorologist Tom Saunders said a north-westerly airstream from Australia’s northern interior drove the sharp temperature rise. He estimated spring temperatures could average three degrees above recent baseline levels.[1]
The same weekend produced snow forecasts for Thredbo while southern Queensland faced temperatures in the mid-30s. South Australia’s Mount Lofty and Flinders ranges faced possible gusts reaching 110km/h.[1]
Heavy rain created another hazard, with flood watches covering catchments across northern Victoria and northern Tasmania. Those catchments were already saturated after repeated winter rainfall.[1]
The contrast demonstrates how a warming climate can produce sharply different risks across short distances. Heat, wind, snow and flooding can now appear within the same national weather pattern.
For communities, these contrasts create difficult planning conditions. Emergency agencies must prepare for hazards whose timing and intensity increasingly overlap across seasons.[6]
Australia’s snowpack reached a historic low during the first week of September. Spencers Creek recorded only 31.2 centimetres on 3 September.[3]
The snowpack peaked at 94.5 centimetres on 13 August. That peak ranked as the third-lowest recorded since measurements began in 1954.[3]
Weatherzone journalist Anthony Sharwood explained why late snow carries limited value. Fresh snow performs best when a substantial winter snowpack remains beneath it.[1]
Major resorts including Mount Buller, Mount Hotham, Falls Creek and Charlotte Pass are closing operations up to a month early. Warmer conditions also mean more winter precipitation falls as rain.[4]
El Niño is now firmly established across the tropical Pacific and is forecast to strengthen further. The World Meteorological Organization gives the event an almost 100 per cent chance of persisting through February 2027.[5]
El Niño typically brings hotter and drier conditions to southern and eastern Australia during winter and spring. Those conditions can increase risks from heatwaves, drought and bushfires.[5]
The current event is developing against a much warmer global climate. WMO forecasts show increased chances of above-normal temperatures across almost all land areas during September to November.[5]
Natural climate drivers therefore operate on top of long-term warming. The resulting risks can exceed expectations based solely on historical El Niño behaviour.[5]
Greater Sydney entered 5 September under a Total Fire Ban. Extreme fire danger accompanied the hot and windy conditions.[6]
AFAC identified heightened fire risk across northern and south-eastern NSW, south-east Queensland and north-eastern Tasmania. Parts of Western Australia, South Australia, Victoria and large areas of the Northern Territory also faced elevated risk.[1]
Fire agencies must increasingly manage hazards beyond the traditional summer window. Earlier heat and dry conditions can extend the period when vegetation becomes readily combustible.[6]
The governance challenge reaches beyond emergency response. Planning authorities must account for changing fire seasons while communities and First Nations land managers retain vital local knowledge about Country and fire behaviour.[7]
Australia’s early spring heat is more than an isolated temperature spike. Sydney reached summer-like temperatures while alpine snowpack conditions exposed a second climate pressure.[1]
El Niño is amplifying the immediate risks, but the underlying warming trend sets the broader conditions. Emergency services can respond to individual hazards while governments shape the exposure through planning and preparedness.
The central accountability issue is therefore practical. Australia needs institutions capable of acting on forecasts before extreme conditions become emergencies, while recognising communities as partners in climate adaptation.
1. Sydney set to hit 33C in warmest start to spring since mid-1800s. Australian Associated Press and Guardian reporting on Sydney temperatures, regional weather, snow and fire conditions.
2. Latest Weather Observations around Badgerys Creek. Bureau of Meteorology observations record 33°C at Badgerys Creek at 1.52pm on 5 September 2026.
3. Where’s the snow? Could 2026 be Australia’s worst season?. SBS News reports historic-low snow depth at Spencers Creek during the first week of September.
4. Australian ski resorts to close up to a month early due to global heating and El Niño. The Guardian examines early resort closures, warm winter conditions and declining alpine snow reliability.
5. El Niño set to become very strong, raising risks of extreme weather into 2027. World Meteorological Organization forecasts a very strong El Niño persisting into early 2027.
6. Fire and Rescue NSW seasonal fire warning. Fire and Rescue NSW records the Greater Sydney Total Fire Ban and Extreme fire danger on 5 September 2026.
7. NSW Bushfire Inquiry Final Progress Report. The NSW parliamentary inquiry provides evidence on bushfire governance, preparedness and community safety.
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