On Monday 27 July 2026, at 2:00 pm AEST (1:30 pm ACST), the Australian Government will conduct a national test of the new AusAlert emergency warning system.
Compatible mobile devices will emit a loud siren-like sound, even if set to silent or do not disturb.
These could be natural disasters such as bushfires, floods, cyclones and tsunamis, as well as events like public health emergencies, security threats or biosecurity incidents.