This page contains a severe weather warning for Northland issued by the MetService at 9:20am on Tuesday 13 Dec 2011.
Heavy rain for the west and north of the South Island, also for Mt Taranaki and Northland.
An active front over the Tasman Sea should move slowly eastwards across New Zealand during Wednesday and Thursday, and is preceded by a strong and very humid northeasterly flow.
Rain is likely for much of the country, with the heaviest falls in the west and north of both islands.
Warning amounts of rain are likely during Wednesday and early Thursday for Westland and Buller, the ranges of northern Marlborough, and for the northwest ranges of Nelson where as much as 280mm of rain may fall.
Up to 120mm of rain is forecast
As the front approaches the North Island from Wednesday afternoon through to early Thursday morning, up to 120mm of rain is forecast for Mt Taranaki and in the hill and ranges of Northland north of Whangarei.
Rain in all these areas should gradually ease during Thursday morning.
People are advised rivers and streams may rise rapidly, surface flooding and slips are possible.