Tyson Millar
@TysonMillar
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Photos, Weather, Climate & Snow. Opinions are my own. 🇦🇺
Sydney, Australia
Joined August 2011
First Major snowfall of the year for Mount Mawson, #Tasmania (~1200m ASL). 124 km/h wind gusts for Mount Wellington/kunanyi overnight.
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⛈ Severe weather and flooding triggered red warning from @MetService in New Zealand late April 2025. The impact is visible in this #ImageOfTheDay from #CopernicusEU #Sentinel3, showing sediment poured into Pegasus Bay. Learn more: https://t.co/kKJxVjAkJd
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Finally got a clear pass via Sentinel Satellite of New Zealand's impressive May snow dump. Here's the lower Canterbury, Upper Otago region. Second frame is Mount Hutt (centre frame). #NewZealand
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Snow fall above 1100m is revealed across the Otago and Canterbury regions as the State of Emergency region mops up after a unique low pressure system dumped more than 150mm of rain (and +100cm of snow) across the central South Island over the last 48 hours.
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Indigenous Australians quickly lost the ability to ‘fight for their country’ when colonial settlers landed on Australian shores. A Welcome to Country seems the very least we can yield to when considering the sacrificing of those before us. #Welcometocountry
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High probability for a significant rain event along Sydney, Newcastle and Illawarra coastlines tonight and into tomorrow as an upper level moves over eastern NSW today. Big ensemble model spread suggest potential falls exceeding 100mm in areas. #sydney
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A lone ‘spray ring’ is spotted from Bald Hill in the Northern Illawarra just now as a gust front ahead of a line of showers pushes onshore. Wattamolla just registered 87km/h gusts with its passing. #sydneywx
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On March 1, Antarctic sea ice reached its smallest coverage of the year. This year’s minimum extent tied 2022 and 2024 for the second-lowest summer sea ice area observed since satellite records began in 1979. Learn more: https://t.co/QWP6PZ2Czz
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Models are locking in on a significant extra-tropical low forming between the Coral Sea & NZ this week. A strengthening MJO is fuelling a potent atmospheric river. 🌊💨 150–200mm possible for parts of Northland to Bay of Plenty, with gale-force winds by next weekend.
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La Niña has ended, and the tropical Pacific is now in a neutral state—neither La Niña nor El Niño. Without those patterns influencing the atmosphere, it’s harder to anticipate seasonal shifts in rain or temperatures. Neutral likely lasts through fall. https://t.co/m9g0rBNruj
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A patchwork of failure.
Here is how daily global temperatures have changed since the preindustrial (1850-1900) period in the Copernicus/ECMWF ERA5 dataset, with data through two days ago (April 8th):
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Concurrent radar loops of the low’s deepening this morning.
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Himawari-9 infrared imagery of the coastal low formation tonight.
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64.8 knots (120km/h) wind gusts at my local weather station (Bald Hill, NSW) this morning (1am). As the Tasman Low deepens and the tongue of heavy precip and gusty winds moves up the coast.
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Can all but lock-in at TC off the North-West (& GoC) over the next fortnight as the MJO flares up through the Marine Continent, transitioning into West Pac next week. #TropicalCyclone #jtwc #ECMWF
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Dusting of snow on kunanyi/Mount Wellington, TAS at sunrise this morning. #tassnow -1.4°C 56 km/h wind at 06:30 hrs
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