Locals should prepare for thunderstorm asthma today.
There is a high risk in the Wimmera region and moderate risk for people in the Mallee, with Mildura in for showers and a possible storm with a top of 31 forecast.
Thunderstorm asthma can affect those with asthma or hay fever, especially people who experience wheezing or coughing with their hay fever.
And the grass pollen forecast for the Mallee is high today.
People with asthma or hay fever should carry medication and stay inside before and during the storms.
In September of this year, officials warned locals to prepare for the upcoming storm season.
Anyone who suffers from asthma or hay fever can monitor the forecast on the VicEmergency app.
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