More heavy falls for Sydney after wettest weekend in years

Sydneysiders have been warned more soaking rain is on the way, after a sodden weekend triggered flash-flooding in parts.

Over the past week the city has seen some heavy rainfall, and today has been no exception.

This weather is due to a slow moving, moisture-laden trough persisting over eastern New South Wales with a blocking high in the southeast not allowing the trough to shift away. The main spectacle of this system has been the rainfall.

The 24 hour rainfall totals until 9am this morning in Sydney recorded 43mm in the gauges, making it the wettest day in three-and-a-half months, since November last year.

Adding to the deluge has been another 74mm of rain in Sydney, between 9am and 4.30pm today.  These totals (117mm) have made it Sydney's wettest weekend in about three years.

Elsewhere in New South Wales, Gosford had its heaviest rainfall in three years, with a staggering 124mm falling in the 24 hours until 9am this morning. In addition to the soggy conditions, wind speeds were significantly above average, adding to the cool temperatures.

Sydney airport recorded a 50 km/h wind gust at 11am, while Jervis Bay had a 57 km/h wind gust at 1pm. Sydney started off the morning at a cool 21 degrees but by midday, temperatures had dipped below 18 degrees – a sign of the cooler weather to come.

While the wet weekend didn’t result in any storms over Sydney, they have occurred in places further north.

However, thunderstorms cannot be ruled out for the next couple of days.

Unfortunately, this gloomy weather isn’t looking to ease anytime soon, with showers and thunderstorms a possibility on the forecast for most days this coming week.

In a silver-lining, a high pressure ridge begins to develop on Wednesday, pushing the trough further north and resulting in some more settled conditions, which should last a few days.

"It is heavy rainfall but it hasn't been enough to exceed the threshold."We are seeing shower activity, mostly along central coast and Sydney coast."

NSW SES spokesperson Neil Wilblin said it had been a busy morning for volunteers.

"We've had about 260 call outs mainly across the metropolitan area," he said.

"With these widespread showers most of the jobs have been in relation to roof damage, roof leakage, ceilings leaking, sky lights leaking.

"On the central coast, emergency workers conducted two rescue operations.