Heavy conditions expected to continue along parts of the east coast on ThursdayFollow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastWater flowing out of Australia’s largest urban water supply will add to the risk of flooding after a damaging and complex low-pressure system continues to cause widespread havoc across New South Wales and eastern Victoria.Severe weather warnings for damaging winds and hazardous surf remained in place on Thursday morning, with the system still “lurking over the Tasman Sea”, said Helen Reid, meteorologist at the Bureau of Meteorology.Sign up for Guardian