Australia’s east coast is set to be battered by 120km/h winds as two icy cold fronts sweep across several states ahead of days of wild weather.
A severe weather warning has been issued across New South Wales, with dangerous winds expected from Wednesday ahead of a polar blast later in the week.
The Bureau of Meteorology says the wind chill factor will be significant on Wednesday and the rest of the week, especially in the south of the state.
‘A vigorous cold front will sweep across western NSW this morning, reaching eastern parts of the state this afternoon and evening and bringing very windy conditions with its passage,’ the bureau said.
Newcastle, Wollongong, Nowra, Batemans Bay, Goulburn, Broken Hill and Thredbo Top will be among the areas most affected.
For alpine areas above 1,900 metres, wind speeds could average 80-90km/h and peak gusts could exceed 120km/h.
Temperatures will plummet all the way up to Coffs Harbour and west to Mildura, with the weekend set to feel frosty across the eastern states.
The bureau also said there was a high chance of a La Nina forming in the next few months, creating three-times the normal risk of cyclones and deadly rain.
‘La Nina in NSW usually brings above average rainfall in winter and spring to areas west of the Great Dividing Range. That also increases the risk of widespread flooding and cooler temperatures,’ it said.
BOM reported that the likelihood of a dangerous La Nina forming increased to 70 per cent – roughly three times the usual level.
This is when strong winds around the equator stir up cold waters to impact weather on land.
It means heavy rainfall, which could result in flash flooding and an early start to cyclone season.
However there are no currently tropical cyclone warnings in place for Australia.
In the coming days in far western NSW, including the Lower Western and parts of the Riverina and Upper Western areas, there will be damaging winds, averaging 60-70km/h with peak gusts in excess of 90km/h possible.
Similar winds are possible for much of the NSW coast and ranges between the Barrington Tops and the Southern Alps from Wednesday afternoon to Thursday morning.
The threat of severe winds is expected to ease for far western NSW on Wednesday afternoon and for eastern NSW during Thursday, although conditions will still remain very windy in both areas.
A BOM Forecaster told Daily Mail Australia there were coastal warnings due to winds and intense swells with gale force warnings in place for Sydney.
A mass of polar air will spread across NSW, South Australia, Tasmania and Victoria on Wednesday, followed by another snowy blast just hours later.
The first front is expected to bring 20 to 30cm of snow to NSW however a second front – expected from Thursday – is set to dump even more.
Some ski fields are expected to get between 80 and 120cm of snow between Wednesday and Sunday – including ‘very strange’ places just 500m above sea level.
The snow is expected to begin on Thursday evening and will fall between the Great Dividing Range all the way up to the Queensland border.
This unusually includes towns such as Armidale, Walcha, Orange, Cooma and Goulburn.
Temperatures are also set to drop across the state with Saturday expected to be the coldest day.
In Sydney the air temperature is only set to reach a maximum of 15C while areas such as Orange is only set to reach a top of 3C while Goulburn will reach a top of 9C.
Most of the eastern part of the state will have a top of 12C while the northern NSW will hit a top of 15C at 10am.
However this is in stark contrast to what the temperatures will actually feel like, according to BOM’s weather tool MetEye.
The winds will make Sydney feel like it is barely reaching double digits at just 9C while Orange and Goulburn will feel as though it is in the negatives.
Most of the eastern and northern part of the state will feel as though it will be between 0C and 6C.
This powerful weather system is also expected to cause widespread hail, thunderstorms, snow, blustery winds and rain in the same four states.
The first front will bring torrential rain, dangerous winds, snow and thunderstorms across the states, according to Weatherzone.
The most damaging winds took hold in South Australia on Tuesday afternoon before spreading up into NSW and northeast Victoria on Wednesday.
There has been a severe weather warning already in place for parts of South Australia since 11am on Tuesday, including areas such as Adelaide, Eyre Peninsula and Flinders.
There is also a severe weather warning in place for the ACT.
Bureau of Meteorology forecaster Diana Eadie said on Monday: ‘We’re also expecting abnormally high tides, which means seawater is likely to flood low lying areas on Wednesday.
‘Temperatures will plummet to be four to eight degrees below average, snow levels dropping to low levels by Sunday.’
Showers are forecast all week in Melbourne, where there are severe wind warnings covering the state, which reached a top of 16C on Tuesday.
Parts of Victoria, including the Snowy River, also have flood warnings in place.
The city’s maximum temperature will gradually drop each day to a top of 11C on Friday, when possible hail is forecast.
The @BOM_NSW is forecasting strong & gusty winds for much of #NSW over coming days. A reminder for landholders to check local conditions before conducting hazard reduction burns and to notify fire authorities and neighbours before lighting up. #NSWRFS https://t.co/MSXQB2uCEt pic.twitter.com/QWWBZzG1Cq
Daily showers are also on the horizon for Hobart, where temperatures will plummet to a minimum of 3C and a top of 10C by Saturday.
Parts of Hobart, including the Coal River, also have flood warnings in place.
Sydneysiders should make the most of the 20C forecast on Wednesday which will gradually drop to a maximum 15C by Saturday.
In other parts of the nation, Brisbane will be sunny throughout the week with maximum temperatures in the low to mid 20s.
Over in the west, the recent rain in Perth is clearing up and will warm up in the coming days to a top of 22C on Friday.
Darwin will stay warm with highs of 34C over the weekend.