A NSW minister has slammed a man’s actions as “boofhead behaviour” after he seemingly ignored warnings from authorities travelled through floodwaters on a jet ski.

In a video posted to Reddit, the man can be seen riding through floodwaters in Tuggerah, on the NSW Central Coast, on Friday after flash flooding in the area.

Watch the video above

The man is seen riding his jet ski past a McDonald’s restaurant, before circling in front of the camera.

Several vehicles seen in the video parked near a Hungry Jacks restaurant appear inundated with water.

“When it’s flash flooding outside but ya (sic) desperate for some Maccas,” the video was captioned.

Authorities have warned against travelling through floodwater. Credit: Reddit

Social media users slammed the man’s actions in comments on the video.

“I’d be p**sed if the wake from his JetSki pushed water into my car/business/house,” one person said.

“What a w***er,” another added.

NSW Minister for Police and Emergency Services David Elliott said he’s asked police to investigate the matter.

“This sort of boofhead behaviour is not going to be tolerated so far as the police are concerned,” Elliott said.

“We have the emergency services deployed doing a very, very difficult job under very, very difficult circumstances and for them to have to divert their resources because people want to ham it up... it’s just not good enough.

“I would use this as an excuse to implore the community, motorists and anybody else that seems to think that risking their own lives is something that is funny or could be made entertainment - it’s just not on.”

Tuggerah was just one area in NSW that was drenched on Friday, with heavy rain bringing up to 185mm in some areas.

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More flash flooding is expected on the Central Coast and Sydney on Saturday, the Bureau of Meteorology warns.

A trough lying along central and northern NSW is expected to bring heavy rain and wind to Sydney and the surrounding regions on Saturday before extending to the South Coast late Saturday and Sunday.

Heavy rain in the Illawarra, Central Tablelands and Blue Mountains could also cause flash flooding.