One Emergency alert Will send a drill Examination Give a message Mobile phone Across Britain in the next weekend.
This will mark the second test of the national emergency alert system – after the first in 2023.
On Sunday, September 7, around 3 pm, around 3 pm, mobile phones connected to 4G and 5G networks will vibrate and emit a siren sound for 10 seconds.
Mobile phone users also find that warning is a drill.
The government has used the system to issue actual warnings five times, which included people in Scotland and Northern Ireland to warn about serious weather during Hurricane Evin in January.
About 3.5 million people in Wales and Southwest England received an alert during Storm Deragh last December.
A 500 kg unexposed World War II Bomb Found in a Plymouth Back Garden alert Some 50,000 phones in February last year.
Messages can be targeted in relatively small areas so that they can indicate risk people.
In May 2024, some 15,000 phones were alerted during the floods in Cumbria, and 10,000 received a warning during floods in Lecesterreshire in January this year.
The system is designed for use during the most potential emergency conditions to influence the UK and the warning will also be broadcast by knocking on television, radio and locally on doors.
Pat McFaden, Chancellor of Lancaster’s Dachi, said: “Sunday, September 7, we will conduct the UK-Wide test of the emergency alert system to ensure that we need it the most.
“It is an important tool to protect the nation when the life line is on the line – and matters every minute.
“During Storm Deragh and Storm Eovin, as millions of people faced dangerous extreme weather, I noticed how effective it was to receive life -saving advice to risky communities in a moment.
“We often do not use the system, but like the fire alarm in your home, it is always on standby, we need to work.”