Rain totals fro the next eight days across eastern Australia. Picture: Sky News Weather.
Rain totals fro the next eight days across eastern Australia. Picture: Sky News Weather.

‘Heaviest rain in months’: Wild weather on the way

FORECASTERS have upped their warnings of combined rain events due to hit both eastern and Western Australia saying it could lead to the heaviest downpours in months.

Some inland areas of New South Wales could see more rain than at any other point in 2018 so far.

Sydney, which just days ago had been forecast to get a not-to-be-sniffed at half a month's rain leading into the weekend, can now expect the gauge to register far in excess of the monthly average rainfall in just a 72 hour stretch. Almost 100mm could fall on the Harbour City.

Brisbane and the Gold Coast could also be sodden in the coming days with rain for Perth and Canberra. But it's good news for Melbourne, Adelaide and Hobart which should escape the worst of the weather.

A low pressure system will bring sodden conditions for both the east and west coasts. Picture: Sky News Weather.
A low pressure system will bring sodden conditions for both the east and west coasts. Picture: Sky News Weather.

SOGGY SYDNEY

Sky News Weather channel meteorologist Tom Saunders said a soaking was due in both the east and west of the country.

"A rain event has gone through South Australia in the last few days and that will spread over NSW leading to a rain event for Wednesday to Saturday stretching from south east Queensland to inland Victoria.

"But NSW is where we will see the heaviest falls. We're expecting the highest falls in months and in some areas the heaviest rain so far this year."

Mr Saunders said a trough of low pressure was deepening into a full blown low pressure system over the state which could also see temperatures plummet.

"The system is moving slowly so that could mean (persistent) rain in some areas. So we will see a good soaking and there could be some thunderstorms in the mix too."

The rain will head across inland NSW on Wednesday and will peak on Thursday. The heaviest downpours will move to the NSW coastline on Friday and eventually head off to sea over the weekend.

Sydney will see a high of 25C on Wednesday before falling to maximums of 19C and then 17C on Thursday and Friday respectively as the low pressure system barrels through.

Up to 40mm of rain could fall on Thursday alone. With the October mean average precipitation in Sydney being 55mm, that's approaching a month's rain in a single day.

But, wait, there's more. A predicted 25-30mm of rainfall on Friday and 5-10mm on Saturday should easily see Sydney exceed its usual October rainfall in three days.

Newcastle could see up to 75mm of rain. Cobar may get a mere 15mm but that would be enough to make Thursday the soggiest day of the year so far in the western NSW town.

Rain totals fro the next eight days across eastern Australia. Picture: Sky News Weather.
Rain totals fro the next eight days across eastern Australia. Picture: Sky News Weather.

WEEKEND WASHOUT

In Queensland, it's going to be a washout weekend in the south east. At the lower end of forecasts, Brisbane could see 20mm of rain from Friday until Monday but if the heavens really open, don't be surprised if 60mm pours down. Temperatures will remain in the mid-twenties.

It could be even wetter on the Gold Coast with upper estimates suggesting 65mm of rain. To escape the rain, head north. In Cairns it should be 30C and sunny.

Canberra will miss the worst of the rain but expect some showers on Thursday and Friday and temperatures in the mid to high teens.

Melbourne should stay dry with highs hovering around the 20C mark for the next few days with a sunny day on Friday. But inland eastern areas will feel the tail end of the system with rain in Bairnsdale on Wednesday and Thursday.

A clearing shower in Hobart on Wednesday should lead to a dry and cloudy weekend with highs in the mid to late teens.

Adelaide should remain dry reaching a pleasant 24C on the weekend. Darwin will be sunny and 34C.

The rain will make an appearance in the west. Grab your umbrella in Perth with scattered showers likely every day until the weekend and a maximum on Thursday of 24C and 22C on Saturday.

The really wet conditions will be in southern parts of the state, however. Esperance has already seen 20mm of moisture. Over the next few days Albany could exceed that with up to 25mm plus falling on the coastal city.