extreme temperature fluctuation due to global warming and impending el nino...
Top of Mt Wellington — Hobart. Picture from Gus Leonisky Gallery
Brisbane has recorded its coldest morning in 103 years, with low temperatures also being felt across the rest of Queensland.
The weather bureau says the state's capital dropped to 2.6 degrees Celsius just before 7:00am (AEST) on Saturday.
Bureau spokeswoman Michelle Berry said it has been exceptionally cold and temperatures are still dropping.
"[It's been] the coldest morning since 1911, so it's quite a record there," she said.
Clermont in central Queensland had record-low temperatures on Friday, but broke records again on Saturday morning with the temperature dropping down to -4.5C
Meanwhile in Hobart, Tasmania, 2000 kilometres south of Brisbane, the temperature range has been 2 degrees above average. Mt Wellington, Hobart, at nearly 800 metres altitude, the temperature range is between -2 and 3 degrees Celsius.
There is a strong high pressure system on the south of the continent, which brings no clouds from the south but drives cold winds from Antarctica which is melting at a rate of knots. One day I will post one of my older diagrams about how the air circulate around the earth, including the "rolls" (due to latitude gradients) which create the jet streams and the horizontal spin due to highs and lows.