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More than 300mm of rain in 48 hours. How unusual for Sydney and Illawarra?

Source Weatherzone

Widespread rainfall amounting to 100-to-300 millimetres has just fallen across much of Sydney and Illawarra. Some areas have amassed 300-to-600mm - in just one-to-two days this is unusual but how unusual? For starters, this much rainfall is three-to-six times the monthly average for most areas. One of the wettest spots in the past 48 hours has been Brogers, in the Kangaroo Valley, gaining a whopping 595mm. The 521mm recorded at Wattamolla (Kangaroo Valley) is the highest 48-hour total at t... Read more ›