Unsettled weather pattern despite onshore flow

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Hi Jimmy,

Been nice to see a return to an unsettled weather pattern despite it being an onshore flow. Upper temps are quite low even up here with the Brisbane sounding showing 500hPa temps around -18. Combined with the moist lower atmosphere and dry uppers, some large cumulus and cumulonimus has formed over the past 24 hours - mainly along the coast.  Some very photogenic cells passed by here yesterday afternoon.

The structure was remarkably similar in structure to an event just over two years ago

 6 April 2008

 21 Feb 2006

No doubt the weather pattern was much the same.   It should remain unstable for the next 2 days before the upper trough weakens a bit.

About Michael Bath

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