Last of the summer rain puts southern states on flood watch and Sydney on alert for bull sharks

SES personnel at a flooded underpass in South Melbourne. Parts of Victoria received more than double their average February rainfall overnight. Photograph: James Ross/AAP

Late summer rain is causing havoc across Australia, with South Australia on flood watch, Victoria cleaning up after a downpour, and Sydney issuing a shark warning after heavy falls.

Almost all of South Australia, much of western Victoria and parts of western NSW were on flood watch as a slow-moving pressure system from central Australia moved east. Queensland had also seen severe rainfall.