An active trough in the Tasman Sea is forecast to spread across southern and central New Zealand, bringing rain to many areas. There is low to moderate confidence of warning amounts of rain for Southland, South Canterbury from the foothills to the coast, Westland (mostly in the ranges), Buller, Tasman, northern Marlborough, and Mount Taranaki. However, the confidence in warning amounts of rain for Eastern Otago is now considered high. In addition, there is moderate confidence of warning accumulations of snow above about 500 metres for eastern Fiordland, and inland areas of Southland and Otago. For the southern Canterbury High Country the confidence in heavy snow is low. Finally, a strong easterly flow is forecast for the southwest of the South Island later in the day, and there is moderate confidence of easterly gales becoming severe in exposed parts of Fiordland and south Westland.

The active trough is expected to move northwards bringing a period of rain to most places. There is moderate confidence of warning amounts of rain for Mount Taranaki and low confidence for the eastern ranges of Bay of Plenty. There is also low confidence of northerly winds reaching severe gale about exposed parts of South Taranaki across to Taihape. Southeasterly rain is forecast for the southeast of the South Island. There is low confidence of warning amounts of rain for Southland and South Canterbury, but high confidence for eastern Otago. The is moderate confidence of warning amounts of snow above about 500 metres for inland areas from eastern Fiordland through Southland and Otago. Confidence for warning amounts of snow in the southern Canterbury High Country is low. Strong easterlies continue about the southwest of the South Island, and there is moderate confidence of easterly gales becoming severe in exposed parts of Fiordland and Westland.

A strong and cold south to southeast flow affects the South Island, bringing periods of rain or showers to eastern parts of southern and central New Zealand. There is low confidence of warning amounts of rain for parts of eastern Otago, and for Canterbury from the foothills across to the coast.

An active trough continues to affect the country with rain in many areas. There is low confidence of warning amounts of rain for Hawke's Bay, Wairarapa and coastal Marlborough.