The full force of wind gusts up to 140km/h are due late on Wednesday morning ahead of Jasper crossing the coast between Cooktown and Port Douglas, north of Cairns, on Wednesday afternoon or early evening.

Residents have spent the past few days preparing for the slow-moving system to arrive.

It’s classified as category 1 as it nears the coast but is still forecast to cross as a category 2 storm.

As of early Wednesday, Jasper was about 180km northeast of Cairns and 180km east of Cooktown.

While Jasper is expected to intensify to category 2 before making landfall, it should weaken quickly as it moves inland and over Cape York Peninsula, the Bureau of Meteorology said on Wednesday.

Locals have been told to prepare for flash flooding and potentially days without power, with evacuation centres established in Cairns, Port Douglas and Cooktown.

A tropical cyclone warning is in place for Cape Melville to Cardwell, including Cairns and Innisfail and extending inland to include the Atherton Tablelands, Chillagoe and Palmerville.

The cyclone is currently packing gusts of up to 120km/h and moving west at 7km/h.

“Winds of this strength can easily bring down tree limbs, whole trees or power lines, damaging fences, roofs and other properties,” the bureau’s Miriam Bradbury said.

Cairns Mayor Terry James has urged locals to stock up and be prepared for up to five days without power.

“The roads will be cut off – potentially the power will be cut off,” he said.

“It’s been over 60 years since we’ve had a direct hit.

“There’s a lot of stories out there that say we’re protected. Well, we’re not protected.”

More than 100 emergency personnel have been deployed out of Brisbane to boost local crews on the ground.

The system is expected to re-intensify as it moves into the Gulf at the weekend.