The tropical storm, named Alfred, is on track to bring dangerous winds and flooding along the coast of southeastern Queensland, including the country’s third-largest city.

Residents are stacking sandbags to protect low-lying properties ahead of a tropical cyclone that is forecast to become the first in 51 years to hit the Australian east coast near Brisbane, the nation’s third-most populous city.

Millions of residents along Australia’s eastern coast are preparing for the impact of the most southerly cyclone to threaten the region in more than five decades.