01/11/2026
Grass pollen season runs from October to December, and people may notice an increase in asthma and hay fever during this time. It also brings the chance of thunderstorm asthma.
Thunderstorm asthma can occur when there is a lot of grass pollen in the air and a specific kind of thunderstorm. For people who have asthma or hay fever, this can trigger severe asthma symptoms.
Thunderstorm asthma forecasts are designed to inform people at risk that they should be prepared.
To learn more about what you should do on days with increased risk, visit: https://www.betterhealth.vic.gov.au/thunderstorm-asthma
UPDATE: the moderate risk alert for Northern Country has been upgraded to high risk. The high risk alert for North Central and North East region has been downgraded to moderate. The high risk alert for Mallee and Wimmera region remains for Monday 2 November. Continue to monitor local conditions and, if you have asthma, always carry your reliever and if at any time you develop symptoms, follow the four steps of asthma first aid.
There is also a moderate risk for the North Central and North East regions.
If you develop asthma symptoms, follow your asthma action plan or use asthma first aid.
Go indoors and shut windows and doors and turn off air conditioners that bring outside air in.
Stay up to date at VicEmergency: https://emergency.vic.gov.au/respond/