Andrew Miskelly @anero.id · 25/09/2026Warmth over south east Australia will peak on Friday and Saturday before a strong high south of the Bight drives a southerly change through. 151
Andrew Miskelly @anero.id · 23/09/2026The September equinox occurs at 10:05 AEST (00:05 UTC) on Wednesday. The sun rising over this year's unusually strong southern stratospheric polar vortex is triggering marked ozone depletion. 172
Andrew Miskelly @anero.id · 21/09/2026Low cloud envelops areas east of the Divide after Monday's south/easterly change over NSW. 051
Andrew Miskelly @anero.id · 21/09/2026Murky southerly change cutting under the clear, dry air over eastern NSW. The change is preceded by extreme fire danger over the Greater Hunter. 072
Andrew Miskelly @anero.id · 18/09/2026Roll clouds marking the peaks of atmospheric gravity waves ahead of the cold front approaching WA. 131
Andrew Miskelly @anero.id · 16/09/2026Dry, ex-polar air sweeping over the Tasman Sea and towards the tropics. Expect more frost across prone parts of south east Australia on Thursday morning. 032
Andrew Miskelly @anero.id · 08/09/2026Snowy Mountains snow cover at about this time of September each year since 2017. 0124
Andrew Miskelly @anero.id · 08/09/2026Streaks of cloud riding the 280 km/h jet ahead of the cold front approaching TAS. 072
Andrew Miskelly @anero.id · 04/09/2026Cold front crossing south east Australia on Saturday. Expect gusty winds. 041
Andrew Miskelly @anero.id · 04/09/2026Hurricanes Lowell, Karina and Marie over the eastern Pacific, where high sea surface temperatures associated with El Niño are supplying a lot of energy. 043
Andrew Miskelly @anero.id · 03/09/2026Dramatic atmospheric response to bath-like eastern Pacific sea surface temperatures associated with El Niño. 1169
Andrew Miskelly @anero.id · 27/08/2026Signs of spring: warmth building over north west Australia; cold fronts to the south; changeable temperatures and bursts of westerlies between. 052
Andrew Miskelly @anero.id · 25/08/2026If not a bloodbath, then certainly a bath across what remains of Australia's snowfields overnight. Around 50 mm of rain at temperatures in the mid single figures. 071
Andrew Miskelly @anero.id · 24/08/2026Another band of rain and thunderstorms crossing central and eastern Australia, ahead of a shortwave and low pressure system. 141
Andrew Miskelly @anero.id · 17/08/2026Southern stratospheric polar vortex in rude health so far this winter. 0104
Andrew Miskelly @anero.id · 11/08/2026This low pressure system produced heavy rain over parts of SA and VIC, and brought a brief burst of wintry weather to NSW/ACT. 072
Andrew Miskelly @anero.id · 10/08/2026Seems novel to see something other than a ridge over south east Australia. Snowfalls will extend to the highest parts of central NSW during Monday afternoon, with strong winds featuring more broadly. 01610
Andrew Miskelly @anero.id · 08/08/2026Cloud band building ahead of the cold front crossing southern Australia. 082
Andrew Miskelly @anero.id · 28/07/2026This 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. 061
Andrew Miskelly @anero.id · 24/07/2026New Zealand next in line for the polar air mass that's just crossed TAS (while mainland Australia remains on the sidelines). 021
Andrew Miskelly @anero.id · 17/07/2026Fingerprints of positive AAO/SAM all over the first half of winter in the Australian region. 020
Andrew Miskelly @anero.id · 10/07/2026Winter has come good across New Zealand's South Island. Imagery from Sentinel-2 on Friday. 020
Andrew Miskelly @anero.id · 10/07/2026Elliptical contrails produced by aircraft in holding patterns east of Sydney on Friday morning. 081
Andrew Miskelly @anero.id · 06/07/2026Super Typhoon Bavi crossing the Mariana Islands north of Guam on Monday morning. 041
Andrew Miskelly @anero.id · 03/07/2026Polar vortex hitting its stride it the southern stratosphere. 0155
Andrew Miskelly @anero.id · 01/07/2026Cold air approaching south east Australia. Unremarkable for the time of year, but novel in the context of this winter to date. 1125
Andrew Miskelly @anero.id · 30/06/2026Series of rain bands crossing south east Australia ahead of a drier change. 295
Andrew Miskelly @anero.id · 26/06/2026Eye-catching low pressure system approaching south west WA on Friday. 0166
Andrew Miskelly @anero.id · 26/06/2026Spectacular, vertically-stacked low pressure system off south west WA. 3145
Andrew Miskelly @anero.id · 25/06/2026Strongly positive AAO/SAM (Antarctica 🟦 → midlatitudes 🟥) behind the return to onshore winds over eastern Australia, and the non-arrival of Australia's ski season. 083
Andrew Miskelly @anero.id · 19/06/2026A 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. 0135
Andrew Miskelly @anero.id · 19/06/2026Development of the extensive northwest cloud band currently over eastern Australia. 053
Andrew Miskelly @anero.id · 17/06/2026Series of northwest cloud bands over central Australia, between a persistent high over the Tasman Sea and troughs to its west. 052
Andrew Miskelly @anero.id · 17/06/2026Low pressure system over the Great Australian Bight reeling in the latest in a series of northwest cloud bands. 041
Andrew Miskelly @anero.id · 16/06/2026Fog down low and cirrus up high over eastern NSW/ACT on Tuesday. 063
Andrew Miskelly @anero.id · 14/06/2026Tropical Pacific Ocean sea surface temperature anomalies so far in 2026. 0106
Andrew Miskelly @anero.id · 12/06/2026Feeling sticky? Most of Australia is dealing with very high levels of humidity for the time of year. 084
Andrew Miskelly @anero.id · 09/06/2026Relatively warm days and nights ahead for much of southern Australia. 041
Andrew Miskelly @anero.id · 04/06/2026Upper-level perspective of the low pressure system affecting southern Australia this week. 093
Andrew Miskelly @anero.id · 01/06/2026Persistent 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. 061