If you’re in Switzerland on the first Wednesday in February, at 13:30 you will hear the sirens all over Switzerland being tested. It all happens roughly at the same time and is quite a racket!
Don’t be alarmed if it happens, it will take some people by surprise.
What you might also hear is some sirens being tested later in the day – these are typically the sirens that were problematic when the test fired and have likely been fixed.
The final piece of the jigsaw is in your pocket. Get the Alertswiss App and enjoy the full impact of the testing, directly on your phone or tablet.