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Exceptional rainfalls last weekend in many regions

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December 05, 2017

For the second time in 16 days an exceptional rain event took part in many areas in our regions last weekend 2nd-3rd December. The heaviest rains were in Northern Victoria and adjacent areas where Echuca recorded 123 mms to last Saturday morning, 2nd December.

This was not only a record daily fall for Echuca for December but also the wettest ever day overall in 136 years of records. The same rainfall situation also occurred at Stanhope with 127 mms, at Strathbogie, 165 mms, Violet Town, 146 mms, Euroa, 146 mms, Lake Eildon, 148.6 mms. The two day rainfall totals at these places except Lake Eildon were all the second highest in over 110 years of records.

The wetter two days were March 18-19th 1950 when a monsoonal low which had been sitting over outback QLD for a week moved slowly southwards into Victoria. I remember this event in March 1950 when my class mate at Grammar told us that 12 inches of rain fell at his father's sheep property at Yarck which had 128 mms to last Saturday morning.

The worst floods were in Violet Town , Euroa and at places along the Ovens River. Falls Creek had 114 mms to last Saturday morning, a record daily fall for December and the highest since 131 mms on 1st January 2010. Mt Buller's 139 mms was an all time record daily fall breaking the previous daily fall of 128 mms in September of 1949.

Benalla received 77 mms last Saturday morning, it's wettest December day since 82.4 mms in 1947. Further north Coonabarabran and many other nearby centres had their heaviest daily rainfalls since last March. A very slow moving low pressure trough sandwiched between two high pressure systems . A small low centre formed over the Riverina on the Friday night, deepened and then moved SSE to be centred near the east coast of Tasmania by Sunday morning 3rd December.

Hobart after having it's warmest November in 135 years of records received heavy rain and the coldest December day since 1964 when the maximum temperature reached only 10.7, or 22 degrees lower than last Thursday's maximum. Last month Melbourne recorded one of it's warmest Novembers in 158 years of records.

The Outback QLD towns of Roma and St. George both had their coolest November since 2010. From the records similar comparisons occurred previously in 1886, 1910 and 2007. Thus more heavy rain and thunderstorms are expected this summer season and maximum temperatures above normal.

The next rain events anticipated mid December, early January and then close to Australia Day, the 26th when my eldest son, Anthony turns 50. David had his wettest birthday today, Sunday 3rd . His 42nd. The hottest days near Christmas and the 3rd week of January.

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