Conditions are intensifying across the south-east Queensland and northern NSW coast, with the Bureau of Meteorology warning Tropical Cyclone Alfred's slow track will bring a "very high risk of significant impacts".

Four million people are in the firing line of Cyclone Alfred. It's expected to hit between the Sunshine Coast and the Gold Coast - a stretch of Australia known for its beautiful beaches and top surf – as well as Brisbane, Australia's third-biggest city.

Brisbane airport was closed as the centre of Alfred is expected to cross the coast very early Saturday morning, most likely between Noosa and Coolangatta of Queensland accordinng to Australia's Bureau