Storms in Sydney: Hundreds of people ask for help in the middle of a flood

More than 500 Australians have asked for emergency badistance after the storms that shook Sydney and surrounding areas, causing floods, power cuts and flight delays.

According to meteorologists, the average monthly rainfall in Sydney was recorded in just two hours on Wednesday.

Authorities said at least 11 people had been rescued from vehicles trapped by floods. A man died in a car accident.

Images posted online showed flooded roads, houses and stations.

Two policemen were injured in Sydney after being hit by a falling tree while they were trying to help motorists, authorities said.

The weather disrupted morning travel in Australia's largest city, with many transportation services canceled or delayed, including more than 50 flights.

The Australian Bureau of Meteorology said it was the wettest day in November for the region since 1984.

"The intensity of this rain was phenomenal – 91mm fell in 90 minutes," said forecaster Rob Taggart at the Australian Broadcasting Corporation.

The storm affected mainly coastal areas of New South Wales (NSW), but many drought-affected inland areas were reportedly missed.

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Authorities urged the population to stay safe before the next storms on Wednesday.

"We can not stress enough that drivers should never attempt to cross floodwaters or cross flooded roads," said NSW Police Assistant Commissioner Michael Corboy.