In just a few days time, people across the UK - including those living in Glasgow - will get an alert pinged straight to their phones.
It comes as part of a test from the UK Government which is designed to alert people to anything that could put their life at risk. This includes flooding, fires, or extreme weather with the notification set to sound for 10 seconds and after this has passed, the message will disappear.
The siren-like alert will also vibrate with people being told they do not need to reply to it. And even if your phone is on do not disturb, silent or a similar setting, you will still be alerted.