Remnants of Cyclone Debbie are expected to lash New Zealand this week.

MetService meteorologist Stephen Glassy says heavy rain and strong winds are likely to cause flooding and make it hazardous for drivers from Tuesday through to Thursday.

He says severe rainfall is expected from the central North Island to the upper South Island.

"It's very likely that it will reach warning criteria in several places, which is over 100mm in 24 hours, and some places could even see well in excess of that over the course of several days."

Meanwhile in Australia, affected areas still face a critical phase, especially in Queensland's Logan.

Floodwaters there peaked yesterday, and will take some time to recede and show the full extent of the damage

Hundreds are still without power around Beenleigh, Eagleby and Loganlea.

The floods have claimed a life, with emergency crews yesterday recovering the body of a 77-year-old Eagleby man, who went missing on Friday.

Three others remain missing in Queensland - one near Murgon, one in Mackay and one on the Gold Coast hinterland

Police Commissioner Ian Stewart says it's still a dangerous situation.

"Certainly we've still got a way to go and that's the clear message, this is not over yet, we just want to keep all Queenslanders safe so we ask that everyone continues to work with us in the affected areas so we can ensure your safety."

Focus is also turning now on Rockhampton, which is preparing for the biggest flood in 63 years

A major flood peak is set to hit on Wednesday, predicted to inundate more than 5,000 properties.

The Rockhampton Airport is expected to close tomorrow.

Thousands evacuated from their homes in Lismore in Northern New South Wales are beginning to return home to assess the damage.