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Nationwide warning day: Now things are getting serious! Test sirens and apps!
On September 11, 2025, Germany will test its warning systems from 11 a.m. on the nationwide warning day to raise population awareness.
Nationwide warning day: Now things are getting serious! Test sirens and apps!
On September 11, 2025, Germany will be the setting for the nationwide warning day. At 11:00 a.m. the first test alarms sound in all federal states, and the whole thing is brought to life using various warning devices. These include sirens, warning apps, cell broadcast messages and digital city information systems. The all-clear will then follow at 11:45 a.m. This campaign is about security and information provision for the population, as stadtblatt-online.de reports.
The warning day, which takes place annually on the second Thursday in September, is organized jointly by the federal, state and local governments. A test warning is sent to all warning multipliers connected to the Modular Warning System (MoWaS), which also include radio stations and app servers. The warnings are sent with a time delay to channels such as televisions, radios and smartphones. Municipal warning channels such as loudspeaker trucks and sirens are also used.
Goals and importance of the warning day
The goal of this day is clear: the warning systems should be tested for their effectiveness and the population should be made aware of warnings and self-precaution. The President of the Federal Office for Civil Protection and Disaster Assistance (BBK), Ralph Tiesler, emphasizes the immense importance of citizen participation. Feedback is important in order to further develop the warning system, reports bbk.bund.de.
In addition, the BBK Vice President Dr. René Funk described the warning day as a “stress test under full load” to check the robustness of the transmission chain. Not only is this a once-in-a-lifetime experience, but it also leads to an important survey that starts online at 11:00 a.m. and remains open until September 18, 2025. Citizens can contribute their experiences with the warning channels on the website “warntag-umfrage.de”.
Results of the surveys
A 2024 survey shows that about two-thirds of citizens have trust in the national warning system. This lowers the pulse when you consider that 98 percent consider regular testing of the warning channels to be essential. Last year, 162,685 survey questionnaires were evaluated to continue to check the effectiveness and trust in the warning systems.
So be there on September 11th when Germany uses the warning day for the next test run and all channels from warning systems to digital media are activated. Whether via radio, television or your favorite warning app - it is a good opportunity to reconsider your own options for self-precaution and to find out how you can be informed quickly and effectively even in a crisis situation. More information about the warning day can also be found at datensicherheit.de.