News

Don’t let thunderstorm asthma rain on your parade

By Taylah Baker

Oct 8, 2025

Goulburn Valley Public Health Unit recommends preparing for thunderstorm asthma now. Photo: AAP Image/Tracey Nearmy

It can strike without warning.

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With thunderstorm season upon us, Goulburn Valley Public Health Unit is urging residents to prepare early for thunderstorm asthma.

Thunderstorm asthma is a rare but serious weather-related event that occurs when thunderstorms during the spring grass pollen season cause pollen grains to burst into tiny particles.

These particles can be inhaled deep into the lungs, triggering severe asthma attacks — even in people who have only mild asthma or hay fever.

GVPHU clinical director Dr Will Cross said now was the time to take preventative measures.

“If you have asthma or experience seasonal asthma, it’s important to have an up-to-date asthma action plan and manage your symptoms with advice from your general practitioner,” he said.

“An asthma action plan is a simple guide created with your doctor to help you manage your asthma and know what to do if your symptoms get worse.

“Make sure you have your asthma medication with you at all times during this high-risk season.”

To reduce the risk of thunderstorm asthma on days when it is a known trigger, GVPHU recommends taking the following steps:

Use your preventer medication: If you have a prescribed preventer inhaler, use it as directed, especially in spring.
Manage hay fever symptoms: Consult your GP or pharmacist to keep symptoms under control.
Monitor pollen forecasts daily: Use the VicEmergency website or app to check pollen forecasts, and try to stay indoors on high pollen or thunderstorm days.
Be prepared: Keep your asthma action plan updated, have your medications ready, and learn basic asthma first aid. If symptoms do not improve after first aid, call 000.

GVPHU’s message is clear: preparation is the best protection from thunderstorm asthma.