Hunter residents are being warned to rug-up during the next few days, with temperatures expected to fall by more than 10 degrees below average.
The cold snap, the Bureau of Meteorology says, will affect much of NSW.
“Significant snow falls are expected around the region over coming days, including areas of the Northern Tablelands, the Central Tablelands, and the Southern Ranges,” a BOM spokesperson said.
“Snow levels are likely to drop to 800m and could even fall as low as 500m.
“This could include locations such as Oberon, Orange, Barrington Tops, the Blue Mountains, Guyra, Armidale and Glen Innes.”
Strong and gusty winds are also expected to batter some areas from Tuesday.
Drivers are being warned to take extra care with snow and ice expected to cause dangerous driving conditions.
“Storms associated with the cold front are currently occurring in parts of western NSW and will continue tracking east through the afternoon and this evening,” BOM warns.
“There is a risk of heavy rain in the south-east later in the week and people in that area should watch for updates.
“While an east coast low is expected to develop in coming days, it should be noted that most impacts are likely to occur on the Victorian side of the border.
“However, these types of weather systems can be quite dynamic and people in southern regions should continue to monitor conditions and warnings.”