During grass pollen season people may notice an increase in asthma and hay fever. Grass pollen season (October through December) also brings the chance of thunderstorm asthma.
Thunderstorm asthma is thought to be triggered by a unique combination of high amounts of grass pollen in the air and a certain type of thunderstorm.
For people who have asthma or hay fever, this can trigger severe asthma symptoms.
To view thunderstorm asthma resources, including posters, brochures and fact sheets in other languages, visit Council's thunderstorm asthma alert page.