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Andrew Miskelly

@anero.id
767 followers 126 following 722 posts

Learning from meteorologists, climatologists, engineers, cartographers, aviators, authentic Christians and other good sorts. Fediverse @andrewmiskelly@anero.id

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Andrew Miskelly @anero.id · 25/09/2026
Warmth over south east Australia will peak on Friday and Saturday before a strong high south of the Bight drives a southerly change through.
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Andrew Miskelly @anero.id · 23/09/2026
The 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.
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Andrew Miskelly @anero.id · 21/09/2026
Low cloud envelops areas east of the Divide after Monday's south/easterly change over NSW.
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Andrew Miskelly @anero.id · 21/09/2026
Murky southerly change cutting under the clear, dry air over eastern NSW. The change is preceded by extreme fire danger over the Greater Hunter.
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Andrew Miskelly @anero.id · 18/09/2026
Roll clouds marking the peaks of atmospheric gravity waves ahead of the cold front approaching WA.
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Andrew Miskelly @anero.id · 16/09/2026
Dry, 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.
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Andrew Miskelly @anero.id · 14/09/2026
Spring doing its thing over south east Australia.
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Andrew Miskelly @anero.id · 08/09/2026
Snowy Mountains snow cover at about this time of September each year since 2017.
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Andrew Miskelly @anero.id · 08/09/2026
Streaks of cloud riding the 280 km/h jet ahead of the cold front approaching TAS.
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Andrew Miskelly @anero.id · 04/09/2026
Cold front crossing south east Australia on Saturday. Expect gusty winds.
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Andrew Miskelly @anero.id · 04/09/2026
Hurricanes Lowell, Karina and Marie over the eastern Pacific, where high sea surface temperatures associated with El Niño are supplying a lot of energy.
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Andrew Miskelly @anero.id · 03/09/2026
September westerlies over south east Australia.
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Andrew Miskelly @anero.id · 03/09/2026
Dramatic atmospheric response to bath-like eastern Pacific sea surface temperatures associated with El Niño.
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Andrew Miskelly @anero.id · 01/09/2026
Winter 2026 across Australia.
Daily maximum temperature decile across Australia during winter 2026.Daily minimum temperature decile across Australia during winter 2026.Daily mean temperature decile across Australia during winter 2026.Precipitation amount decile across Australia during winter 2026.
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Andrew Miskelly @anero.id · 27/08/2026
Signs of spring: warmth building over north west Australia; cold fronts to the south; changeable temperatures and bursts of westerlies between.
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Andrew Miskelly @anero.id · 25/08/2026
If 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.
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Andrew Miskelly @anero.id · 24/08/2026
Another band of rain and thunderstorms crossing central and eastern Australia, ahead of a shortwave and low pressure system.
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Andrew Miskelly @anero.id · 17/08/2026
Southern stratospheric polar vortex in rude health so far this winter.
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Andrew Miskelly @anero.id · 11/08/2026
This low pressure system produced heavy rain over parts of SA and VIC, and brought a brief burst of wintry weather to NSW/ACT.
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Andrew Miskelly @anero.id · 10/08/2026
Winter in eastern NSW/ACT fell on a Monday this year.
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Andrew Miskelly @anero.id · 10/08/2026
Seems 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.
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Andrew Miskelly @anero.id · 08/08/2026
Cloud band building ahead of the cold front crossing southern Australia.
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Andrew Miskelly @anero.id · 28/07/2026
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.
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Andrew Miskelly @anero.id · 24/07/2026
New Zealand next in line for the polar air mass that's just crossed TAS (while mainland Australia remains on the sidelines).
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Andrew Miskelly @anero.id · 17/07/2026
Fingerprints of positive AAO/SAM all over the first half of winter in the Australian region.
500 hPa geopotential height and anomaly between 1 June and 16 July 2026 showing negative anomalies over Antarctica and positive anomalies in the adjacent midlatitudes.Sea level pressure and anomaly between 1 June and 16 July 2026 showing negative anomalies surrounding Antarctica and positive anomalies in the adjacent midlatitudes.
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Andrew Miskelly @anero.id · 10/07/2026
Winter has come good across New Zealand's South Island. Imagery from Sentinel-2 on Friday.
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Andrew Miskelly @anero.id · 10/07/2026
Elliptical contrails produced by aircraft in holding patterns east of Sydney on Friday morning.
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Andrew Miskelly @anero.id · 06/07/2026
Super Typhoon Bavi over the Philippine Sea on Monday.
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Andrew Miskelly @anero.id · 06/07/2026
Super Typhoon Bavi crossing the Mariana Islands north of Guam on Monday morning.
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Andrew Miskelly @anero.id · 03/07/2026
Polar vortex hitting its stride it the southern stratosphere.
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Andrew Miskelly @anero.id · 02/07/2026
Colder air arriving over south east Australia on Thursday.
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Andrew Miskelly @anero.id · 01/07/2026
Cold air approaching south east Australia. Unremarkable for the time of year, but novel in the context of this winter to date.
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Andrew Miskelly @anero.id · 30/06/2026
Series of rain bands crossing south east Australia ahead of a drier change.
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Andrew Miskelly @anero.id · 26/06/2026
Eye-catching low pressure system approaching south west WA on Friday.
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Andrew Miskelly @anero.id · 26/06/2026
Spectacular, vertically-stacked low pressure system off south west WA.
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Andrew Miskelly @anero.id · 25/06/2026
Strongly positive AAO/SAM (Antarctica 🟦 → midlatitudes 🟥) behind the return to onshore winds over eastern Australia, and the non-arrival of Australia's ski season.
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Andrew Miskelly @anero.id · 19/06/2026
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.
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Andrew Miskelly @anero.id · 19/06/2026
Development of the extensive northwest cloud band currently over eastern Australia.
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Andrew Miskelly @anero.id · 17/06/2026
Series of northwest cloud bands over central Australia, between a persistent high over the Tasman Sea and troughs to its west.
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Andrew Miskelly @anero.id · 17/06/2026
Low pressure system over the Great Australian Bight reeling in the latest in a series of northwest cloud bands.
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Andrew Miskelly @anero.id · 16/06/2026
Fog down low and cirrus up high over eastern NSW/ACT on Tuesday.
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Andrew Miskelly @anero.id · 14/06/2026
Tropical Pacific Ocean sea surface temperature anomalies so far in 2026.
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Andrew Miskelly @anero.id · 13/06/2026
June warmth over central and eastern Australia.
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Andrew Miskelly @anero.id · 12/06/2026
False start to winter in the NSW Snowy Mountains.
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Andrew Miskelly @anero.id · 12/06/2026
Feeling sticky? Most of Australia is dealing with very high levels of humidity for the time of year.
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Andrew Miskelly @anero.id · 09/06/2026
Relatively warm days and nights ahead for much of southern Australia.
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Andrew Miskelly @anero.id · 04/06/2026
Upper-level perspective of the low pressure system affecting southern Australia this week.
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Andrew Miskelly @anero.id · 03/06/2026
Low pressure system crossing TAS on Wednesday.
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Andrew Miskelly @anero.id · 03/06/2026
Low pressure system approaching TAS on Wednesday morning.
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Andrew Miskelly @anero.id · 01/06/2026
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.
Provisional sea level pressure anomaly during May 2026. Comparison between analyses from NCEP GFS and the 1991-2020 mean from ECMWF ERA5.Provisional sea surface temperature anomaly during May 2026, from NOAA/NCEI OISST.https://reg.bom.gov.au/jsp/awap/temp/index.jsp?colour=colour&time=latest&step=0&map=meandecile&period=month&area=nat
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