UPDATE: It's anticipated Cyclone Marcia will come close to the Fraser Coast in the early hours of Saturday, Fraser Coast Mayor Gerard O'Connell says.

He said even though Cyclone Marcia had dissipated, there was still quite a deal of wind speed associated with it - about 150kmh.

"We're continuing to watch for any possible tidal surge, particularly in the coastal areas," Cr O'Connell said in a video recorded for the Fraser Coast Disaster Coordination Centre Facebook page.

"We're also monitoring the levels of flooding around Gympie for the Mary River and what that might mean for Maryborough in the next couple of days.

"We'll have a better update as we go through the night.

"We're looking forward to not having too much of weather event but being able to get through this and to get through it safely."

Mayor watching for tidal surge and Mary River levels: Fraser Coast Mayor Gerard O'Connell says the disaster co-ordination team is continuing to watch for any possible tidal surge and monitor the levels of Mary River flooding around Gympie.

UPDATE: Low-lying coastal areas of the Fraser Coast will be flooded during Friday night's high tide described as an 'absolute threat' by the Bureau of Meteorology.

BoM spokesman Jess Carey said the storm tide hitting Hervey Bay on Friday night at 10.05pm was the area's most immediate threat.

"Right now the area needs to focus on the dangerous storm tide happening this evening," he said.

"We cannot predict actual tide heights because it will very depending on which way the rain goes.

"But what we can say is that there will absolutely be localised flooding of low-lying areas as this is going to be well and truly above the highest tide of the year."

Mr Carey said the Mary River in Maryborough is expected to flood early on Sunday, 24 hours after an expected flood height of more than 12m in Gympie.

He said more detail information would be available once the rain in Gympie had stopped.

"Once it has stopped raining we can make a more accurate prediction of how much the Mary River will flood," Mr Carey said.

"There are no issues for Maryborough from the Mary River immediately, so now is the time to get prepared."

Fraser Coast disaster planning co-ordinator Mal Churchill said the disaster management group was watching the areas that were flooded in 2013.

"We can't say anything for sure but using ex-tropical cyclone Oswald as an indicator, coastal areas such as Poona and Toogoom may be flooded again," he said.

"More inland we're keeping an eye on Glenwood, Gayndah, Howard, Aldershot and Pacific Haven as well as other low-lying sub-communities."

Mr Carey said the region could receive another 50 to 100mm of rain on Friday, on top of the 74mm already received, but this was less than what was originally predicted.

Cyclone Marcia is weakening on Friday and is a category 3 system as it impacts Rockhampton.

EARLIER UPDATE: FRASER Coast residents should not get complacent as they wake up to calm conditions ahead of Tropical Cyclone Marcia's impact in the region.

The Fraser Coast Local Disaster Management Group will meet at 8am on Friday morning for the latest information.

As the category 5 cyclone crosses the coast up north, disaster co-ordinator Mal Churchill is warning people not to get complacent.

With many Fraser Coast residents waking up to birds chirping under blue skies, Mr Churchill is worried people might become complacent.

"It's crossing the coast," he said.

"It doesn't mean the path of it won't travel down to us."

EARLIER UPDATE: The destructive core of severe Tropical Cyclone Marcia, with gusts to 285 kmh, is crossing the Capricorn coast near Shoalwater Bay.

The Bureau of Meteorology's 7am update said it was expected to continue moving in a southerly direction over land close to the coast during Friday.

"Destructive winds are expected to impact coastal and island communities between St. Lawrence and Gladstone this morning, and inland across the Capricornia and Burnett districts later today," the bureau said.

"A separate Severe Weather Warning is current south of Double Island Point and inland to the southern Burnett and eastern parts of the Darling Downs and Granite Belt."

EARLIER: Category 5 Tropical Cyclone Marcia is expected to make landfall between St Lawrence and Hervey Bay later on Friday.

The Bureau of Meteorology's 5am update extended the southern end of cyclone zone from Bundaberg to Hervey Bay.

But based on the latest Bureau of Meterology mapping, it is expected to make landfall directly north of Yeppoon at 9am, an hour earlier than previously forecast. 

The cyclone is about 120km east north-east of St Lawrence and 150km north of Yeppoon and expected to continue moving in a southerly direction at 16kmh toward the Queensland coast with wind gusts to 295kmh.

"Destructive winds are expected to extend further across coastal and island communities between St. Lawrence and Gladstone this morning, and inland across the Capricornia and Burnett districts later today," the Bureau said.

"Gales are occurring about some coastal and island communities between Sarina and Double Island Point, and are expected to extend inland to areas including Moura, Biloela, Monto and Mundubbera during today.

"Abnormally high tides will be experienced this morning with water levels expected to rise substantially above the highest tide of the year on the high tide.

"Note also that abnormally high tides are also likely during this evening's high tide in parts of the warning area even though the cyclone is likely to be over land and weaker by then.

"Dangerous surf is also expected.

"Heavy rainfall is already occurring about some coastal and island communities between Mackay and Double Island Point, and is expected to extend further inland across the Capricornia, Wide Bay and Burnett, and the eastern parts of the Central Highlands and Coalfields districts later today.

"A Flood Watch is current for the area."

Almoat 87mm of rain has fallen in Hervey Bay and 74mm in Maryborough from 9am on Thursday till 5am on Friday, according to the Bureau's figures.

The highest wind gusts during that time were 48kmh around 8pm and 10.30pm on Thursday in Hervey Bay and 46kmh mid-Thursday afternoon in Maryborough.