The MetService advises that a front is expected to move north over the South Island and weaken on Saturday, bringing a period of heavy rain to the west of the South Island and strong to gale westerlies to the far south.
An active front, preceded by strong northwesterlies is expected to move over the South Island from the southwest from late Monday to early Tuesday, then across the North Island late Tuesday.
It is followed by a ridge over the South Island later Tuesday.
The front should bring a period of heavy rain to the west of the South Island during Monday and Tuesday, and snow to higher roads and mountain passes of the South Island on Tuesday.
There is low confidence that wind warnings will be needed in coastal Southland and Clutha from Saturday to early Monday.
There is low confidence of northwesterly winds rising to severe gale in exposed parts of Otago, away from Clutha, and Canterbury on Monday, and in Marlborough and Wellington from late Monday to early Tuesday, then in Wairarapa and Central Hawke's Bay from Saturday afternoon to Sunday morning and again early on Tuesday.
There is low confidence that rainfall accumulations will reach warning amounts in Fiordland on Monday, and in Westland during Monday and Tuesday.


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