Parts of NSW are preparing for heavy storms and flooding,with wet weather set to continue into summer.

Parts of NSW are preparing for heavy storms and flooding,with wet weather set to continue into summer.Credit:Edwina Pickles

“Rainfall totals this week could be record-breaking,” he said. “Daily amounts could top 150 millimetres,particularly with storms,and by week’s end some places could see their November average rainfall several times over.”

Widespread storms,intense rain,winds and potentially major flooding have all been forecast. The bureau has highlighted the areas of concern from this severe weather system as southern Queensland,eastern and northern NSW and eastern Victoria.

Mr How said the worst of the weather will be around the low-pressure system,moving into the country’s south-east on Thursday and triggering another burst of heavy rain and storms.

He encouraged people to continually check flood warnings in the coming days.

The bureau has also issued flash flood warnings for the Northern and Central Tablelands,the Riverina and parts of the Mid North Coast,which could see between 15-45mm of rain from Wednesday. Some isolated parts of the state could see up to 100mm of rain.

On Thursday alone,up to 60mm is forecast to fall in Coffs Harbour,up to 70mm in Grafton,between 50-80mm in Tenterfield and Guyra,up to 90mm at Glen Innes and up to 100mm in Moree.

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NSW SES acting co-ordinator of duty operations Stacey Phillips said the agency was mobilising its volunteers in the areas of concern. Weather briefings have been underway since Monday as the SES gears up for a busy few days.

“We prepare for the worst-case scenario and we’re expecting a bit of rain. There’s a lot of preparation behind the scenes,” she said.

Meanwhile,flooding is expected along several inland rivers,including the Peel River and Namoi River in the state’s north-west,which are likely to see moderate to major flooding.

It comes as the bureau reiterated its La Nina alert on Wednesday,meaning there is a 70 per cent chance of the event occurring in the coming months. La Nina events increase the chances of above-average rainfall for northern and eastern Australia during spring and summer.

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