Heavy rain across Victoria could cause already swollen rivers to rise again to major flood level today.
The Bureau of Meteorology issued severe weather warnings for heavy rainfall for north-eastern parts of the state, which could lead to flash flooding in some areas.
Up to 60 millimetres of rain fell overnight in parts of Victoria's north-east, with another rain band expected to move through the area on Sunday afternoon.
The weather bureau said 24-hour totals of up to 120 millimetres were possible in some areas, with isolated falls of up to 150 millimetres about the alpine peaks.
There are flood watches and warnings current for areas around Seymour, Wodonga, Albury, Wangaratta, Corryong, Bright, Mansfield, Falls Creek, Mt Hotham and Mt Buller.
The weather bureau's Keris Arndt said Melbourne was also expected to face stormy weather today.
"We have a flood watch out for renewed rises along most rivers in Victoria based on the rainfall that we are expecting today and that's for expected minor to moderate flooding and potentially some isolated major flooding in the north-east of the state," he said.
"As the cold front comes through we're likely to see a few bands of showers and thunderstorms through Melbourne, potentially severe thunderstorms as they come through with the peak period probably in the early afternoon today, then likely to clear off again before we see another surge in the evening or overnight tonight."
A thunderstorm asthma warning has also been issued for northern Victoria.
The Department of Health said the greatest risk was in the north-central and northern country districts, which include regional centres Bendigo, Shepparton, Echuca and Castlemaine.
The warnings for all other districts were moderate.