Austria will observe Civil Protection Day on Saturday, October 3, by triggering more than 8,000 sirens nationwide. In Vienna, 180 sirens are scheduled to sound between 12:00 PM and 12:45 PM to test four specific signals: Sirenenprobe, Warnung, Alarm, and Entwarnung.
The Sirenenprobe starts with a 15-second tone, followed by a 3-minute Warnung tone. A 1-minute wailing Alarm signal and a 1-minute Entwarnung tone complete the test. Additional warning channels in Vienna will also be tested between 12:00 PM and 1:00 PM today.
This annual exercise ensures technical functionality and familiarizes the population with emergency signals. While silent alarms maintain readiness year-round, city departments use this event to monitor the audibility and condition of the physical siren network.