Hail and heavy rain have pelted parts of Sydney as storms sweep across New South Wales.
A reported tornado has swept through Dubbo damaging several homes, while hailstones the size of 20 cent coins have pummelled parts of Sydney.
At least four people have been rescued from floods, including a woman pulled from a vehicle in Rouse Hill in the city's north-west, State Emergency Service spokesman Phil Campbell said.
"These storms are bringing hail and reports of some flash flooding down near Wagga Wagga," he said.
One woman posted a Twitter photo of hailstones beside a 20c coin as other pictures of hail blanketing back yards emerged last night.
Sydney and the Illawarra region have been worst hit, but more than 100 calls to the SES have been scattered across the state, Mr Campbell says.
The Bureau of Meteorology has issued a flood watch warning for the region, along with the South Coast, Lachlan and Nepean River Valleys.
Rainfall totals in the range of 100-200mm were expected today, with higher localised falls of over 300mm possible.
"Heavy rain and the potential for flash flooding (are) the main threats," regional director Stephen Lellyett said.
