Queensland's bay islands act as a natural buffer protecting the mainland from severe storm surges, and helped save Brisbane from the full force of Cyclone Alfred.

Ex-tropical cyclone Alfred lingered off the south-east Australian coast on Saturday and forecasters said Brisbane is likely to miss the worst of the storm, a relief for millions of residents in the region who have been staying indoors.

Tropical Cyclone Alfred weakened into a tropical low Saturday as it neared Brisbane, Australia, bringing heavy rain and flooding risks to the region, according to officials. Initially expected to make landfall as the first cyclone to strike southeast Queensland since 1974, Alfred's winds dropped to under 39 mph (63 kph) as it shifted inland.