That's all for our live blog today.

To stay up to date on the latest weather warnings, you can go to:

• ABC Emergency
• The Bureau of Meteorology
• EmergencyWA
• SecureNT

If you're looking for more coverage on Tropical Cyclone Ilsa, you can read:

• Severe Tropical Cyclone Ilsa makes landfall on WA's Kimberley-Pilbara coast as category five system
• Tropical low from Cyclone Ilsa to impact Northern Territory's south this weekend, BOM forecasts

My colleagues have been out in the worst-affected regions across Western Australia today.

Here are some photos by Cason Ho:

The WA Department of Fire and Emergency Services says it will be days before the true extent of damage from Tropical Cyclone Ilsa can be assessed.

Emergency Services Commissioner Darren Klemm says localised flooding is likely, but it could be more than a day before the full extent is known.

 "We might see a situation where the waters that are up over the roads now will reduce and then in 24 to 36 hours it might come up again as the water flushes its way down the river system," Commissioner Klemm says.

Flooding is occurring across a number of river catchments in the Pilbara, Kimberley, Midwest Gascoyne and Goldfields Midlands regions as a result of the cyclone.

WA's Department of Fire and Emergency Services is warning residents to:

• Prepare for flooding – Western Desert, Warburton and Salt Lakes Districts.
• Take Action for minor flooding – De Grey River catchment including Marble Bar and Pardoo Roadhouse.
• Take action for isolated flooding – Sandy Desert catchment including Punmu, Parnngurr, Kunawarritji and Kiwirrkurra.

Western Australia's Premier Mark McGowan says major towns and communities like Port Hedland and Bidyadanga were spared the worst of the cyclone.

"Early assessments show damage to those areas is fairly minimal, and no one was injured – a huge relief for those living in the area," Mr McGowan says.

"Our thoughts go out to the owners and staff at Pardoo Roadhouse who weathered the full impact of the cyclone, and have no doubt endured an intense and frightening evening."

But he says the situation is continuing to develop.

"I will continue to receive updates from the Department of Fire and Emergency Services WA on the extent of the damage, and any ongoing threat to communities."

"To all those in the Pilbara and Kimberley, take care of yourselves and your family members, and stay safe."

Flood warnings are current for the De Grey River and Sandy Desert catchments for possible minor flooding.

WA's Department of Fire and Emergency Services is warning areas of very heavy rainfall are expected to be occurring with intense rainfall totals of 150 to 300mm with higher localised falls possible from Friday into Saturday along the path of the cyclone.

Forecast rainfall in the flood watch area is expected to result in river rises, areas of flooding and may adversely affect road conditions. Roads may become impassable and some communities may become isolated.

Here are the latest warnings:

• Prepare for flooding – Western Desert, Warburton and Salt Lakes Districts.
• Take Action for minor flooding – De Grey River catchment including Marble Bar and Pardoo Roadhouse.
• Take action for isolated flooding – Sandy Desert catchment including Punmu, Parnngurr, Kunawarritji and Kiwirrkurra.

Pardoo Roadhouse in Western Australia's Pilbara has been "wiped out" by Tropical Cyclone Ilsa, with one of the owners saying he feels "lucky to be alive" after the category five system barrelled over the region in the early hours of Friday morning.

Will Batth recounted his night spent sheltering in a shipping container after the cyclone made landfall just after 12.00 am WST, with the roadhouse bearing the brunt of the ferocious storm.

Mr Batth said he and his business partner had sent staff to Port Hedland ahead of the cyclone to safeguard them, but they stayed through the night.

"It was like four hours of hell," he said. "I am just lucky to be alive at the moment."

"We took a chance and made the dash and I don't know how, with the adrenaline, we managed to open the sea container door and managed to hide in there."

• You can continue reading this story from Pamela Medlen here.

According to the BOM, the system is forecast to continue to track in a south-east direction and move further inland across the northern parts of the interior as it slowly decays later today and into Saturday.

It is expected to move into southern parts of the Northern Territory overnight. 

Senior meteorologist Sally Cutter says Cyclone Ilsa is expected to move quickly through the NT with heavy rainfall and potentially damaging winds near and to the south of the low.

"With the heavy falls associated with this low as it moves, we could see falls up to 100mm or even a little bit higher," Ms Cutter says.

"Most of them will be a little bit lower, maybe in that 50 to 80mm mark. 

"But those really intense rainfalls are going to fall over a space of a few hours, so there could be some flash flooding."