Severe thunderstorms are affecting parts of Victoria, NSW, the ACT and Queensland today. A broad low pressure trough draped across eastern Australia is produced the widespread thunderstorm outbreak. Some of the day's first storms rolled into Melbourne from the north late this morning, prompting warnings for large hail, damaging winds and heavy rainfall. Skies darkened across the city as the storms rolled overhead, with some western suburbs picking up close to 20mm of rain in the space of one hour. Another southward moving mass of storms moved into the ACT early this afternoon and produced a burst of heavy rain in Canberra. The slow-moving storms also generated frequent lightning strikes and covered the ground in hail in some areas. Further north, intense thunderstorms produced golf ball sized hail as they moved over the Blue Mountains in NSW. Some roads were temporarily closed in the region due to the hail and heavy rainfall. A warning was also issued for severe storms in the southern inland of Queensland shortly after lunch time today, where damaging winds and hail are a risk this afternoon. Today's thunderstorms come less than 24 hours after there were reports of a tornado in the Riverina District of NSW during a supercell thunderstorm on Thursday evening.