Victoria has had its most widespread rainfall event in about 15 years with some flooding the worst in decades. This has, for some, been a God-send given the region has been riddled with drought for so long - well for the most part of 15 years!
The rainfall event was brought about by a low in the process of cyclogenisis as it moved across the region. This injected moist air from further north and with cold air produced the rainfall. What also contributed to this flood event was the rising levels of rivers resulting from snow melt in the mountains.