Showing all posts tagged: climate
A spring of Sam (Southern Annular Mode) and La Nina summer?
5 September 2022
Image courtesy of disassociated.
While there’s a slim chance regions of Australia may yet be spared a third consecutive wet, rainy, La Niña weather event this summer, the outlook for spring is not so promising.
The Bureau of Meteorology advised last week parts of eastern Australian can expect higher than usual rainfalls, thanks to another meteorological phenomenon, a positive Southern Annular Mode, or SAM, for short:
Further, Dr Bettio said a positive Southern Annular Mode (SAM) is also likely, which pushes weather systems south, bringing wetter easterly winds to NSW and fewer cold fronts to western Tasmania. Dr Bettio said parts of Western Australia and western Tasmania are likely to experience below average rainfall this spring. Almost all of Australia is likely to experience warmer than average nights, while cooler days are likely for large parts of the mainland except the tropical north.
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Australia on alert for a third La Nina event this summer
18 August 2022
Another wet summer may be on the cards for parts of Australia, after the Bureau of Meteorology moved the ENSO Outlook to a La Niña alert status.
This status change follows a renewal of cooling in the tropical Pacific Ocean towards La Niña thresholds over recent weeks, as well as the persistence of the Southern Oscillation Index (SOI) at La Niña levels and strengthened trade winds at La Niña levels. Climate models indicate further cooling is likely, with four of seven models suggesting La Ni Niña a could return by early-to-mid southern hemisphere spring.
If another La Niña eventuates this summer, it will be the third in a row.
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Forty four degrees Celsius, I think that is a record for Sydney
1 January 2006
It’s almost midnight in Sydney. I think it’s safe to go outside now. Earlier today temperatures hit 44° Celsius. The last time I was in place that hot was Aswan, in Egypt.
44°C. That must be an all-time record for Sydney.
In other news, I’m pleased to report last night’s festivities were indeed festive. Seems quite a party was had at my apartment building too. When I arrived home today someone had ripped a fire extinguisher off the wall and sprayed most the common areas with it.
There’s fine white powder all over the stairs and on the roof top area.
Other than that I spent the day tinkering with disassociated, and slipping cool, cool beverages. Too hot for anything else, trust me. Happy New Year đŸ™‚
Originally published Sunday, 1 January 2006.
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