Melbourne, (Agencies): Australia's northern city of Darwin was hit by a tropical cyclone on Wednesday, prompting authorities to issue evacuation notices and close the airport, a media report said.

People have been asked to prepare for a huge tidal surge late on Wednesday, with dozens of homes already damaged by the cyclone Carlos, a category 1 storm.

Several homes in Darwin, the capital of Northern Territory state, were already inundated amid widespread power blackouts, while trees were uprooted by the wild weather.

Heavy rain continued to pelt the city as coastal residents were told to prepare their evacuation plans.

Some people in the Darwin suburb of Rapid Creek were evacuated Tuesday night, as swollen creeks damaged roads and caused power outages.

"This high tide, accompanied by possible storm surge, could result in the inundation of low-lying coastal areas such as Rapid Creek, Nightcliff and surrounding suburbs," a Northern Territory Emergency Service (NTES) spokeswoman said.

According to the report, NTES and Chief Minister Paul Henderson detailed the storm threat on Wednesday morning.