Flood — Awareness — Storm Tide

Flooding can also occur from king tides. King tides occur throughout the year and are higher than normal tides. Low lying parts of Brisbane and the Bayside suburbs may experience storm tide flooding.

Tide affected areas of the river, tidal creeks and other waterways may also be affected. There are four different storm tide flooding likelihood areas in Flood Awareness Map, namely High, Medium, Low and very low. The storm tide High likelihood layer consists of the current 5% Annual Exceedance Probability (AEP) (20 year Average Recurrence Interval (ARI)) (2\.1mAHD) storm tide flood extent.

The storm tide Medium likelihood layer consists of the current 1% AEP / 100 year ARI (2\.5mAHD) storm tide flood extent (outside high likelihood area). The storm tide Low likelihood layer consists of the 0\.2% AEP / 500 year ARI (2\.85mAHD) storm tide flood extent (outside high and medium likelihood areas). The storm tide Very Low likelihood consists of the 0\.05% AEP / 2000 year ARI (3\.2mAHD) storm tide flood extent (outside high, medium and low likelihood areas).