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More than a month's worth of rain drenching NE NSW, SE QLD

Brett Dutschke, Sunday June 11, 2017 - 14:25 EST

Parts of northeastern New South Wales and far southeast Queensland have been soaked by more than a month's worth of rain in a day, causing some flooding.

Given the area has been drier than normal in the few months leading up until the weekend, recent heavy rain has been soaked up quite well and flooding has generally only been minor.

Lismore and Casino both picked up more than a month's worth of rain in less than 24 hours.

Since rain started falling about two days ago, Lismore has amassed about 160mm, well above the June average of 100mm.

Other places to gain more than a month's worth in about two days include Evans Head (about 280mm) Yamba (about 175mm), Coffs Harbour (about 170mm) and Port Macquarie (about 150mm).

A low pressure trough which has been bringing this rain was also responsible for more than a month's worth in parts of the Hunter and Sydney late last week.

The trough has shifted north and west, also bringing patchy rain to parts of northwestern NSW.

During the next few days the trough should intensify over northeastern NSW and southeast Queensland as a pool of cold air moves to the region from the interior. As a result, widespread falls of 50-to-150mm are likely between the Sunshine Coast and about Yamba.

By the end of the week, some places could end up with another 100-to-200mm, taking the weekly tally to more than double the monthly average.

There are signs of this system edging south, bringing rain with it, through the Hunter and Sydney again.

Unfortunately, most of the interior will miss out.

- Weatherzone

© Weatherzone 2017

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