We'll wrap up our live coverage there, thank you for following along. 

As NT Fire and Emergency Services Commissioner Andrew Warton says, you should check "the national broadcaster, ABC, the Bureau of Meteorology website, and of course Secure NT" for the latest news.

He says, no matter where you are in the NT, please "just stay vigilant". 

"There are a large number of risks right around the Northern Territory at the moment and I urge you to look after each other and to collectively stay safe," he says.

Jude Scott from the Bureau of Meteorology (BOM) says water at Katherine Bridge is sitting at around 13.8 metres, which is below the minor flood level.

"We may reach the minor flood levels later today, but we are no longer expecting to reach the major flood level for Katherine town," she says.

"In terms of what to expect from the weather, from today we're back to more typical wet season conditions with a chance of showers and storms across the Top End."

She says a severe weather warning and coastal hazard warning will remain in place amid damaging surf conditions, including around Darwin and southern parts of the Tiwi Islands.

NT Chief Minister Lia Finocchiaro says "a majority of schools in Katherine will re-open tomorrow".

"I just urge all parents to keep onto that Secure NT website, all of the information will come to light later this afternoon," she says.

"But most schools will reopen, as will the public service — we will be able to send people back to government offices from tomorrow."

Jude Scott from the Bureau of Meteorology (BOM) says ex-Tropical Cyclone Narelle is now moving away from the Northern Territory and towards the Kimberley.

"During yesterday, the system brought widespread rainfall totals across the Top End in the 50 to 100 millimetre range," she says.

"The heaviest rainfall was north of the centre of the system."

Ms Scott says riverine flooding reached the moderate level at Waterhouse River and waters at Beswick Bridge are "expected to reach the major level later today".

"Currently, the Katherine River is at minor level at Nitmaluk — that's 5.1 metres — and it is expected to reach the moderate level during this afternoon," she says.

NT Fire and Emergency Services Commissioner Andrew Warton says there are still a number of emergency warnings in place.

There are four still active, covering the Katherine River, Adelaide River, Waterhouse River and Daly River.

"So the risks for anyone near any of these river systems remain current," he says.

He warns "people and animals could become displaced, property could be damaged [and] fast-flowing water could present a number of hazards".

Commissioner Wharton says floodwater "may also contain wastes or chemicals" and, being the NT, one of the the major hazards are crocodiles that could be lurking below the water's surface.

"Please stay vigilant, please stay alert and please stay informed," he advises.

Adelaide River's drinking water supply has been cut off, as major flooding impacts the region.

Power and Water Corporation (PWC) chief executive Djuna Pollard says the drinking water supply ceased around 9am.

"A crew has travelled by helicopter this morning, to restore water supply and the groundwater source," she says.

"We are  confident that this supply will be connected by lunchtime today but it is likely a boil water alert will be required."

NT Fire and Emergency Services (NTES) Commissioner Andrew Warton says workers have been assisting with drone operations and clearing weather-related debris.

He says forecast storms could cause further supply disruptions — including electricity, water and gas — and bring with them the possibility of flash flooding.

"Stay aware of your environment and stay on top of the information provided at Secure NT," he advises.

He says "crews are on standby as the water level at the Katherine River continues to rise".

"I do just want to take this time again to thank all of our first responders and our emergency service personnel — this has been an absolute marathon," he says.

He says further personnel are being deployed to flood-affected remote communities to help with the massive clean-up job.

"And this evening we'll have some interstate teams arriving to assist our NTES crews out in the field — they'll be deployed as required tomorrow," he says.

There will be 20 workers arriving from the ACT and 20 from South Australia.

Power and Water Corporation (PWC) chief executive Djuna Pollard says crews are working to reconnect homes and businesses as needed. 

"Many damage assessments have been completed over the weekend, and restoration has commenced," she says.

"More crews will travel to impacted communities once it is deemed safe to do so."

She says PWC is "aware of electricity network outages" after severe weather overnight, including in:

• Dundee Beach
• Dundee Downs
• Fog Bay
• Litchfield Park
• Stapleton
• Adelaide River
• Berry Springs
• Southport
• Tumbling Waters
• Darwin River
• Katherine
• Florina
• Cossack
• Jilkminggan
• Beswick

You can monitor the outages via the PWC online tracker.

NT Police Commissioner Martin Dole says Adelaide River "has become a key area of concern", after river levels reached the major flood mark overnight.

He's warning the extreme weather event "is not over yet".

"While conditions in some areas are easing, we are still closely monitoring river systems across the Northern Territory," he says.

"In Katherine, we are watching the river levels very closely — whilst we remain hopeful that major flooding will not eventuate, we are fully prepared, whatever the water levels may be."

Police are asking motorists to avoid flooded roadways, with Commissioner Dole explaining cut-off roads are "closed for a reason".

"Do not put your life and the lives of emergency services at risk by driving into flooded roadways," he says.

The chief minister says "we still need to remain vigilant, with no complacency" as the flood threat evolves.

"Overnight, Katherine received 67mm of rain and — if you compare that to Adelaide River — Adelaide River had 202mm overnight," she says.

She says Daly River, a remote NT community evacuated due to flooding for the second time this year, saw 130mm of rain overnight.