A low-pressure zone approaching the eastern North Island may bring days of wet weather, wind, and waves.
MetService warns there could be "significant rainfall" for the east coast and "severe gales" for lower parts of the island.
As the subtropical low drifts down towards New Zealand, it may stall to the north of East Cape on Monday before slowly moving eastward from Wednesday.
As it sits off the coast, it's expected to direct a moist south to southeast flow over central and northern parts of New Zealand, which means periods of heavy rain for eastern districts of the North Island.
"From Monday to Wednesday, there is moderate confidence of rainfall amounts reaching warning criteria in Gisborne and the Wairoa District, then the confidence reduces to low on Thursday," MetService says.
"On Tuesday and Wednesday, there is low confidence of warning amounts of rain for eastern parts of Taihape and the remainder of Hawke's Bay. For Wairarapa, there is low confidence of warning amounts of rain on Wednesday."
There's also a low confidence of severe gales in exposed parts of the lower North Island on Tuesday and Wednesday.
Hawke's Bay and Gisborne may see large south to southeast waves and coastal inundation later on Tuesday and on Wednesday.
