Nödlarmet

Nödlarmet is Sweden's national emergency warning system used to rapidly inform the public about imminent danger or ongoing emergencies and to prompt protective actions. It is operated by the Swedish Civil Contingencies Agency (Myndigheten för samhällsskydd och beredskap, MSB) in coordination with other authorities, such as counties, municipalities, police and rescue services. The system is designed to reach as many people as possible through multiple channels.

The alert is typically broadcast via radio and television nationwide, and distributed through digital channels and, in some cases, public sirens. In recent years, mobile networks can also deliver urgent alerts to compatible devices. The content of a Nödlarmet message is concise and action-oriented, instructing the public what to do and where to seek further information, often directing people to official channels such as MSB's website or regional authorities.

Nödlarmet's usage covers a range of hazards, including severe weather, accidents, public health threats, or security incidents. It can be activated for regional or nationwide alerts, depending on the severity and geographic scope of the risk. The system supports tests and exercises to ensure readiness, and periodic public information campaigns explain how the system works.

Historically, Sweden relied on civil defense sirens; modern Nödlarmet integrates traditional broadcasting with digital warning channels to improve reach. The system is part of Sweden's broader emergency preparedness and risk communication framework.

See also: Myndigheten för samhällsskydd och beredskap; Public warning system; Civil defence (Sweden).