Large complex low pressure brings exceptional weather

By Peter Nelson on November 15, 2016
  • Large complex low pressure brings exceptional weather

    The deep low brought heavy to flood rains to northern Tasmania districts for the third time this year.

A complex low pressure which initially formed over Central Australia last Wednesay 9th November gradually moved over South Australia then deepened considerably by late Friday as it slowly moved over Western Victoria brought extremes of weather over the weekend. A severe tornadic storm hit Mildura late on Friday and much damage was done to property. 29 mms rain fell in 15 minutes and wind gusts reached 130 kph.

There were isolated heavy rainfalls to last Saturday morning. Ivanhoe recorded 50 mms and this was the heaviest daily fall for November there since 1961. Peak Hill recorded 48 mms, it's wettest November day since 1947. Heavy falls were also recorded at Dubbo, Wellington, Cowra, Gulgong and Gooloogong and some of these places have had their seventh successive month with above average rainfall.

Barometric pressures fell to 992 mbs in Melbourne last Sunday morning 13th November as the deep low passed slowly through Bass Strait . This was the lowest reading for November since 1960.

The deep low brought heavy to flood rains to northern Tasmania districts for the third time this year. Sheffield had it's wettest November day since 1924 with 74 mms to Sunday morning. Since May, Sheffield has recorded 1163 mms rainfall and there were only two occasions when the May to November rainfall was higher in the last 110 years. These were in 1917 and 1947 which were both very wet years in our regions.. Scottsdale near Launceston recorded it's wettest ever November day in 63 years with 67.8 mms.

By Peter Nelson on November 15, 2016

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