The Mop Up After Cyclone Debbie's Deluge Begins..

It's all hands on deck across Queensland and Northern New South Wales this week, as thousands deal with the wake of Cyclone Debbie and her deluge. 

The weather event has claimed 5 lives, while there are growing fears for three men who're missing from Mackay and the Sunshine and Gold Coast Hinterland. 

Here's the state of play from today -

NORTH QUEENSLAND:

The Army has moved into North Queensland, where 40,000 people are facing a second week without power. 

Around 650 houses in northern Queensland have been ruled uninhabitable. 

The QLD Premier says she will be heading north on Tuesday, to keep in touch with those around Airlie Beach who're badly affected and, for many, still isolated. 

ROCKHAMPTON: 

Thousands of people are prepping for mass flooding in Rockhampton. Mass flooding is expected to be the worst the area has copped since the 1950s. 

The Fitzroy River is rising and are expected to peak of 9.4 metres on Wednesday or Thursday - at that level flooding will be worse than what was seen in 2011 and 1954, when the city suffered widespread and serious damage.

Authorities have warned 5400 properties are under threat. 

"Although this is a slow moving lead up to the floods, the reality is we need people to be moving and taking action right now," Queensland Fire and Emergency Services deputy commissioner Mark Roche said. 

Extra SES crews have been sent in to help with preparation, dealing with swift-water rescues, and then rapid damage assessments after the flood has hit.

"I believe we will have something like an additional 13 flood boats in the area. We have people who are currently door-knocking.

SOUTH EAST QLD & NORTHERN NSW: 

Residents in Logan, the Gold Coast and Northern New South Wales have described the area as 'a war zone'.

Some business owners say they'll never recover from the damage caused by inundation. 

Logan mayor Luke Smith said on Sunday that almost 290 homes in his area could have been inundated by water. In terms of the repair bill, he says the sky is the limit. 

Lismore mayor Isaac Smith said northern NSW looked like "a war zone", with an estimated 15,000 properties isolated by flooding.

Water levels in Lismore peaked within a metre of the 1974 record of 12.2m on Friday.