The centre of a high pressure system is moving eastwards across the Tasman Sea, letting go of control of our weather. Hot and gusty northerly winds develop on Monday but it stays dry.
A series of cold fronts will cross the southeast of the country this week. The first is on Tuesday, and this will bring rain, as the atmosphere is far too warm. There is moisture pouring in from Queensland, and into the system from Western Australia - and alpine areas can expect 20 to 40 mm of rain, heaviest on Tuesday night. There is the slight chance that it could fall as snow above 1800 metres, as it clears on Wednesday morning.
The next front follows on Wednesday night - and this one is cold enough for alpine snow above 1500 metres. The trailing high will move too far east, so that this system won't bring as much snow as it could have. We should see 2 to 5 cm of snow on Thursday, before the next high moves in on Friday.
There are signs of a cold front pushing through the high pressure barrier on Sunday, that could deliver some snow.
Commentary above courtesy of Jane's Weather. www.janesweather.com