The south-east of Australia is set to be battered by wild weather with Victoria bracing for a thunderstorm asthma event and NSW and Queensland for a supercell storm.
The Victorian Department of Health issued a moderate thunderstorm asthma risk for the Northern Country, North East and East Gippsland areas on Saturday.
Thunderstorm asthma refers to the phenomenon when high levels of pollen combine with a thunderstorm and cause breathing difficulties in residents.
Symptoms can include tightness in chest, wheezing and persistent coughing.
The Victorian Department of Health issued a moderate thunderstorm asthma risk for the Northern Country, North East and East Gippsland areas on Saturday
Severe thunderstorms and heavy rain are also expected to batter New South Wales and Queensland
The last big thunderstorm asthma event to hit Victoria led to 10 deaths and more than 14,000 people presenting with symptoms in 2016.
Severe thunderstorms and heavy rain are also expected to batter NSW and QLD.
The damaging weather comes despite NSW experiencing nothing but clear blue skies and temperatures eight degrees above average at the start of the weekend.
Bureau of Meteorology meteorologist Hugh McDowell warned the day could quickly take a turn.
'It's going to look nice, it's going to look like a decent day to get out and enjoy the weather with your family and friends,' Mr McDowell said.
A cold front hitting the southeast could create a line of storms in the afternoon, with likely severe storms predicted for an area stretching from Dubbo to Coffs Harbour.
'It's a large area where thunderstorms are
