Heavy rain flooded the streets of Melbourne on Friday afternoon, followed by strong winds overnight. Autumn leaves blocking the gutters making it difficult for the excessive rain waters to clear. Melbourne received 28mm of rain in 24 hours to 9am Saturday morning, most of which fell between 10am and 4pm. This is almost half the amount of rain usually seen in the entire month of May. It was also the heaviest rain in seven months for the Victorian capital and the wettest May day since 1995. The heavy rain was caused by an intense low pressure system that deepened due to a pool of cold air in the upper atmosphere. As the low was a slow moving system, it caused the rain to continue to belt down on the Melbourne region for a prolonged period of time, causing treacherous driving conditions during the afternoon peak hour. A flood watch for the Greater Melbourne Catchments was in place on Saturday morning, for the Werribee, Maribyrnong, Yarra, Dandenong and Bunyip rivers. Heavy rain has also caused major flooding along the Latrobe River. State-wide, the heaviest rain was recorded in the West Gippsland district with Yarragon South recording 64mm and Darnum 55mm. Strong winds caused more havoc for the Friday afternoon commute, as westerlies averaged 60 km/h in the city and gusted as high as 76km/h. Conditions eased noticeably by early morning Saturday and for the rest of the day, showers will be scattered with moderate southwesterly winds. With the sun trying to poke through the clouds, it will warm a little more than yesterday, but should not manage to climb above 15 degrees. Make sure to check www.weatherzone.com.au for the latest updates.