Each year, the Ovens Murray Public Health Unit (OM PHU) catchment has a thunderstorm asthma season.

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, particularly during the grass pollen season between October and December.

You can download a fact sheet about thunderstorm asthma.

For more information, go to https://www.betterhealth.vic.gov.au/thunderstorm-asthma