That's all from today's press conference, so we'll leave this live moment there.

Thanks for joining us. You can stay up to date with the latest news on Tropical Cyclone Fina on the ABC News homepage.

And a quick reminder, the number for the NT Police emergency hotline being set up this afternoon is 1800 888 901.

Asked for his one "key piece of advice" for residents of the Greater Darwin area, Mr Snell says they should enact their emergency plan, do it early, and make sure their valuables and homes are secured.

"And be prepared to look after yourself for the next three days," he adds.

Mr Snell says there are currently no plans to evacuate any communities in the Northern Territory due to Tropical Cyclone Fina.

He says emergency services have reviewed flood inundation maps for a sustained high tide one metre above regular highest tide levels, and they've determined only minor flooding in very localised coastal areas is likely.

NT Emergency Service chief officer Wayne Snell is up next.

He's asked to explain the difference between a cyclone warning and an emergency warning, which he acknowledges caused some confusion earlier this morning.

I'll transcribe his response in full:

"A cyclone warning issued by the Bureau of Meteorology is an indication for people to then watch what's going on much more closely around them in their environment, watch what's happening in the messaging space, and to take action in relation to their emergency plan and in relation to the things that they need to do to make sure their family is safe, to make sure that the final preparations are undertaken for the security of their home, and to make sure that they've got their communication systems ready in preparation for a potential out outage," he says.

"When that transitions to an emergency warning, that is the time to undertake your final activities to make yourself safe, to put yourself in a position where you don't need to move, where you don't need to travel any more, where all of your facilities are secured and all of your family knows exactly what's going to happen next.

"That is the time to wait for the impact, and to stay hunkered down for that period of time and wait for the all clear."

Got that?

The NT is currently under a cyclone warning, Mr Snell clarifies — and he adds that there are currently "conversations" happening around Australia about possibly changing the terminology.

Superintendent Engels says the public shelters in Darwin are not open at this time, as they are not expected to be needed.

"We want you to stay home," she says.

"If you feel like … you cannot stay at your home, find somewhere safe to move to today. There's no need to panic, just be prepared."

Asked how people will know if the situation changes, she says there will be "very overt messaging" in the media letting people know that shelters have been opened.

While the government won't direct businesses in Darwin to close, buses won't be running tomorrow, Superintendent Engels says.

The MVR office on Goyder Rd will be closed, too.

"Don't go there," she adds.

Superintendent Engels says NT police expect to issue a similar call to Darwin residents to take shelter tomorrow, meaning today is the final day in which residents will be able to make preparations for Fina's arrival.

"Based on the information we have, we are comfortable that your homes are able to withstand the event," she says.

"If you have concerns, we ask you to go and find somewhere that you feel safe to shelter in.

"When the storm impacts are starting to be felt. We ask you to park your car, find your shelter and stay there until you are told it is clear to go out."

Superintendent Engels issues a similar call for residents of the Tiwi Islands to find shelter before darkness tonight.

She says the ferry between Darwin and the islands is no longer running.

Superintendent Engels says police are asking residents of Minjilang and Warruwi to "pick their place of shelter and to be there before darkness tonight".

She says there are about 280 people in the Minjilang community, and reminds them that an emergency shelter is open in the local school.

"I can tell you that Minjilang residents have been through this before. They're prepared, and they're ready," she says.

A shelter in Warruwi has also been open since last night, she adds, and residents of both communities have "plenty of food and water".

Next up is the NT Police Force, with Superintendent Kirsten Engels addressing the media.

She says police are preparing for all scenarios, and have set up an emergency hotline that will be available from this afternoon.

The number to call is 1800 888 901.