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.

Tropical Cyclone Alfred will cross the coast near the area of Brisbane late Friday or early Saturday. Forecasters are predicting damaging winds, heavy rain and storm surges, and authorities have issued warnings about extreme flooding.