Sydney weather: Storm brings wettest day for Bankstown in more than two years
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Sydney weather: Storm brings wettest day for Bankstown in more than two years

Parts of Sydney experienced their wettest day in more than two years on Friday after a thunderstorm struck the city, bringing hail and flash flooding  and causing delays for flights and trains.

The rain is expected to linger over the city on Saturday morning, clearing from about midday, leaving very light and isolated rain with a low risk of thunderstorms.

Storm clouds over Sydney's CBD on Friday afternoon.

Storm clouds over Sydney's CBD on Friday afternoon.

Photo: Louise Kennerley

At the height of the storm on Friday night, lightning was striking the city at a rate of about 1000 strikes an hour. The bulk of the rain fell in the west and south-west of the Sydney basin.

In the hour from 5.20pm, 58 millimetres of rain fell in Bankstown, including 18 millimetres in just 10 minutes. A total of 67 millimetres fell in the suburb over 24 hours.

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Nearby suburbs including Canterbury, Liverpool and Milperra also received a drenching, but further west, Penrith recorded nothing in its rain gauge.

Craig McIntosh, a meteorologist with Fairfax Media's Weatherzone, said the figures made Friday the wettest day for Bankstown since June 2016 and the wettest September day for the suburb in 12 years.

"These type of storms can completely drench one suburb and totally miss the next," Mr McIntosh said.

A man braves the rain on Friday afternoon.

A man braves the rain on Friday afternoon.

Photo: AAP

The storm caused chaos for the transport system, with train services delayed after lightning strikes damaged equipment at Campsie. Light rail was suspended between Taverners Hill and Dulwich Hill after another lightning strike damaged equipment.

Hail was reported near Bankstown Airport and in the inner west, while heavy rain brought flash-flooding to roads including near Sydney Airport.

The State Emergency Service received 162 calls for assistance, mainly for leaking roofs and localised flash flooding.

Sydney Airport's domestic terminals experienced "significant delays" as a result of the weather, a spokeswoman for the airport said. Qantas cancelled four flights on Friday night.

Mr McIntosh said the storm front had mainly moved offshore by Saturday morning and was heading east over the Tasman. The remainder of the weekend will be sunny, with clouds clearing on Sunday and a top temperature of 21 degrees that may feel a degree or two cooler.

with Jenny Noyes

Weatherzone is owned by Fairfax Media, publisher of this website.