Beachside and low-lying suburbs most at risk, city council flood map shows, when category-two storm hits coast

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Authorities in Brisbane say 20,000 properties in the city are at risk of inundation by storm surge or flooding as Tropical Cyclone Alfred continues its ominous track towards the populated south-east Queensland coast.

Updated tracking maps on Wednesday morning show Alfred maintaining its intensity, speed and likely path to landfall.

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