Australia

Roads closed, power out as parts of Sydney see 100mm rainfall

Several roads in northern Sydney are closed on Monday morning due to ongoing rain, which has seen more than 100 millimetres fall in some suburbs over the weekend.

At 6.30am, the Wakehurst Parkway was closed in both directions from Oxford Falls to North Narrabeen, due to flooding, with motorists advised to instead use Pittwater Road and Warringah Road.

The wet weather at Balmoral Beach on Sunday.

The wet weather at Balmoral Beach on Sunday.Credit:Edwina Pickles

Also on the northern beaches, Oxford Falls Road was closed in both directions between the Wakehurst Parkway and Aroona Road due to flooding.

In the north-west, Galston Road was closed in both directions due to a rockfall west of the bridge. Motorists were advised to travel on Old Northern Road, New Line Road and Pennant Hills Road instead.

Meanwhile, Ausgrid crews are working to restore power to people in South Turramurra, Turramurra and West Pymble.

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The disruption comes as some areas of the city's upper north shore and northern beaches recorded more than 100 millimetres in rain over the past three days, as a low pressure system brought a wet end to a previously dry October.

At Wahroonga, about 115 millimetres of rain fell has fallen since showers began on Friday evening. Most of the rain came on Sunday, with 76 millimetres of rain falling between 9am on Sunday and 6.30am on Monday.

Nearby in Hornsby there were similar totals: the suburb saw 75 millimetres since 9am Sunday for a total of 112 millimetres over the course of the downpour.

On the northern beaches, there was 73 millimetres of rain at Terrey Hills since 9am Sunday and 112 millimetres recorded across the weekend.

Consistent rain also fell in the city and eastern suburbs. At Little Bay there was 40 millimetres recorded on Sunday, bringing the total to 96 millimetres as of 6.30am.

Light rain is forecast for Sydney until Friday, although conditions are expected to ease significantly on Monday evening and little rain forecast on Tuesday.

"The falls will continue with windy and wet conditions, and by this afternoon and evening, as the system moves to the east, the rainfall will be easing," said Bureau of Meteorologist forecaster Shuang Wang.

Sydney is expecting more rain this week.

Sydney is expecting more rain this week. Credit:Nine

A gale wind warning is in place for Sydney's coast and the Hunter and Illawarra coasts on Monday. A strong wind warning is in place for Sydney's closed waters. A hazardous surf warning is also in place.

Outside of Sydney, the highest falls were seen in the Central Coast to Newcastle region, where some areas received more than 200 millimetres of rain over the course of the weekend. Mount Elliott recorded 202 millimetres over the weekend, 146 millimetres of which fell on Sunday.

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