This system will bring decent snowfalls to the high country in TAS, VIC and NSW, but will once again have very limited effect north of the Snowy Mountains Highway.
Andrew Miskelly
@anero.id
Learning from meteorologists, climatologists, engineers, cartographers, aviators, authentic Christians and other good sorts. Fediverse @andrewmiskelly@anero.id
New Zealand next in line for the polar air mass that's just crossed TAS (while mainland Australia remains on the sidelines).
Fingerprints of positive AAO/SAM all over the first half of winter in the Australian region.
Winter has come good across New Zealand's South Island. Imagery from Sentinel-2 on Friday.
Elliptical contrails produced by aircraft in holding patterns east of Sydney on Friday morning.
Super Typhoon Bavi crossing the Mariana Islands north of Guam on Monday morning.
Cold air approaching south east Australia. Unremarkable for the time of year, but novel in the context of this winter to date.
Series of rain bands crossing south east Australia ahead of a drier change.
Eye-catching low pressure system approaching south west WA on Friday.
Spectacular, vertically-stacked low pressure system off south west WA.
Strongly positive AAO/SAM (Antarctica 🟦 → midlatitudes 🟥) behind the return to onshore winds over eastern Australia, and the non-arrival of Australia's ski season.
A persistent ridge 🟨 over the Tasman Sea (linked to the warm June to date over central and eastern Australia) is showing signs of shifting, but the polar vortex 🟦 is tight (positive SAM/AAO), so no major cold outbreaks in the near term for southern Australia.
Development of the extensive northwest cloud band currently over eastern Australia.
Series of northwest cloud bands over central Australia, between a persistent high over the Tasman Sea and troughs to its west.
Low pressure system over the Great Australian Bight reeling in the latest in a series of northwest cloud bands.
Tropical Pacific Ocean sea surface temperature anomalies so far in 2026.
Feeling sticky? Most of Australia is dealing with very high levels of humidity for the time of year.
Relatively warm days and nights ahead for much of southern Australia.
Upper-level perspective of the low pressure system affecting southern Australia this week.
Persistent high pressure near New Zealand driving easterly winds over a warm Tasman Sea produced record warm mean temperatures over parts of south east Australia during May.
The central pressure of the low affecting southern WA plummeted from 1003 to 976 hPa in the 24 hours to 8am AWST on Sunday.