Monday September 16, 2024
Large areas of NSW and parts of Victoria woke up to a frosty morning, with temperatures plunging to their lowest September minimums in years. A few notable locations included:
The standout figure comes from Wagga Wagga, which dropped to -3.4°C, the coldest September morning in the town since 1966—a remarkable 58 years.
Victoria Notable Minimums:
Omeo: -4.6°C (coldest since 2018, when it reached -5.0°C)
Hopetoun: -2.4°C (coldest since 2019, when it reached -2.9°C)
In Victoria, not to be outdone, it was a chilly start here also – though yesterday morning, Albury Airport fell to -2.2C, which was their coldest September morning on record!
A "Late" Cold Spell for September
These freezing conditions were driven by a succession of upper cold pools of air that induced low pressure systems in the Tasman Sea. This saw a chilly, southerly airmass pushed northwards with clear skies and lower humidity contributing to the cold, frosty start.
While it's not unusual for frosts to occur in September – it is a little later than normal, previous September cold snaps (particularly 2012 and 2018) saw their cold temperatures occur earlier in September.
850mb temperatures on Thursday showing warm air across Queensland & northern NSW, though a cool airmass will persist across the south. Source: Weatherwatch MetCentre
Later this week, a warmer airmass will begin to push back into Queensland and northern NSW, though southern NSW and Victoria may not warm up more significantly until the following week.
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