The low pressure system is far from finished - hauling a plethora of weather elements our way

MetService warns the heavy rain and strong winds are likely to intensify as we move into the evening.

Warnings are scattered across the eastern North Island and upper South Island - with residents urged to take caution.

The Otorohanga and Waipa districts have already declared states of emergency - on the back of widespread downpours in recent days.

Manawatu, Whanganui and Tararua could see the worst of the next bout of rain - with Horizons Regional Council bracing itself for flooding, slips and rising rivers.

Metereologist John Law, says much of the North Island's in for a windy night.

He says severe gales could gust up to 130 kilometres an hour in exposed areas - along the eastern coast.

Law says those winds will also help generate rough seas around the coast - with wave heights of up to seven metres around Wellington and the Wairarapa coast tonight.