Big freeze strikes Australia: Antarctic blast lashes the east coast and SNOW dumps just outside Sydney as temperatures plunge to single digits in Melbourne – just four weeks out from summer
- Aussies have woken to a chilly morning as the coast is lashed by icy weather
- Antarctic winds have been dragged north by a bend in the polar jet stream
- The polar jet stream has clashed with the subtropical jet stream across Aus
- Snow has fallen outside Sydney as flood warnings are issued for inland NSW
- Temperatures have plummeted to single digits in Canberra and Melbourne
Australians have woken up to an icy morning as the country is lashed by two jet streams that have pooled cold air over the eastern seaboard.
The cold Antarctic air has been dragged north by a pend in the polar jetstream – a band of wind that continuously flows about 8 to 15km above sea level.
Icy gusts are lashing the east coast and snow is dumping just outside of Sydney and in south-eastern alpine region as the polar jetstream clashes with the separate subtropical jetstream.
It comes as residents of Melbourne and Canberra experience temperatures in the single digits – with the nation’s capital hitting just six degrees on Wednesday morning and Melbourne nine degrees, with the mercury set to rise throughout the day.
Icy gusts have lashed the east coast and snow is dumping just outside of Sydney
Antarctic air has been dragged north by a bend in the polar jet stream, which has clashed with the sub tropical jet stream
Inland parts of NSW have also experienced widespread showers and scattered thunderstorms.
The state’s central west is expected to bear the brunt of conditions with snow possible above 800 metres around Lithgow, Orange and Bathurst and more rain will flood already swollen creeks and catchments.
Lighter snowfall will extend further west, while many areas in NSW will have a maximum temperature 10 to 15 below normal.
NSW Minister for Regional Transport and Roads Sam Farraway warned motorists in the region to take care with wet and icy roads.
‘The recent extreme weather has badly damaged roads right across the state’s network and the forecast of more rain and possible snow only adds to our concerns,’ he said.
‘The potential for snow and black ice on roads across the Central West will create additional road hazards.
‘Some areas across the state’s west have received no rainfall for days but we are not yet seeing floodwaters recede.’
Sydneysiders along the coast have woken up to icy gusts of wind (stock image)
Temperatures have plummeted to single digits in Canberra and Melbourne (Pictured, Racegoers at Flemington Racecourse for the 2022 Melbourne Cup brave the rain)
A dangerous mix of weather was created by the two jet streams clashing over the country due to the contrast in air mass density and temperature.
The polar stream is bringing cold air from the Antarctic while the subtropical sends through warmer air.
Severe weather warnings for damaging winds have now been issued for parts of Queensland, NSW and South Australia.
Flood warnings are also in place across regions in east and south-east Australia as the wild weather produces heavy rain.
Major flooding is expected at Coonamble and Nanami in NSW on Wednesday, and on Friday at Forbes which copped a deluge last month. The Bureau of Meteorology also expects major flooding on the Bogan River.
The heaviest snowfall has been in the central west and south-eastern alpine regions. The NSW Minister for Regional Transport and Roads has warned drivers to be careful of icy roads
The central west is expected to bear the brunt of conditions with snow possible above 800 metres around Lithgow, Orange and Bathurst
More than 90 SES hazard warnings are current for NSW with 48 flood rescues carried out and nearly 760 requests for assistance.
Evacuation orders are in place for residents in Moama, Mathoura, Cowra and Tumut.
Weatherzone meteorologist Yoska Hernandez told Daily Mail Australia that conditions should ease in the coming days.
‘The worst of the weather should be today and tomorrow with damaging winds, snowfall and showers.’
‘The high pressure system will settle the weather over the following days in the south-east.’
She added that the jet stream was already moving past the east towards the Tasman Sea.
FOUR DAY WEATHER FORECAST IN YOUR CITY
Wednesday: Sunny. Min 11 Max 21
Thursday: Partly cloudy. Min 11 Max 22
Friday: Shower or two clearing. Min 12 Max 21
Saturday: Possible shower. Min 14 Max 22
Wednesday: Shower or two. Min 7 Max 15
Thursday: Shower or two clearing. Min 9 Max 15
Friday: Cloudy. Min 9 Max 17
Saturday: Mostly cloudy. Min 9 Max 22
Wednesday: Partly cloudy. Min 12 Max 26
Thursday: Mostly sunny. Min 15 Max 31
Friday: Mostly sunny. Min 15 Max 24
Saturday: Sunny. Min 11 Max 27
Wednesday: Shower or two. Min 10 Max 17
Thursday: Partly cloudy. Min 11 Max 18
Friday: Partly cloudy. Min 8 Max 19
Saturday: Mostly sunny. Min 12 Max 25
Wednesday: Late shower or two. Min 5 Max 14
Thursday: Afternoon shower or two. Min 6 Max 14
Friday: Partly cloudy. Min 8 Max 18
Saturday: Possible shower. Min 10 Max 18
Wednesday: Partly cloudy. Min 3 Max 13
Thursday: Partly cloudy. Min 4 Max 15
Friday: Partly cloudy. Min 4 Max 19
Saturday: Possible shower. Min 9 Max 20
Wednesday: Sunny. Windy. Min 15 Max 25
Thursday: Sunny. Min 13 Max 25
Friday: Possible shower. Min 14 Max 25
Saturday: Showers. Min 15 Max 25
Wednesday: Sunny. Min 27 Max 35
Thursday: Showers. Possible storm. Min 26 Max 33
Friday: Shower or two. Possible storm. Min 26 Max 36
Saturday: Mostly sunny. Min 26 Max 37