Mellomlangsvarsler

Mellomlangsvarsler, literally “medium-to-long-range warnings,” is a term used in Norwegian hazard communication to describe warnings issued with lead times longer than short-term advisories but shorter than long-range forecasts. The word combines mellomlang (medium-long) and varsel (warning). In meteorological and civil protection contexts, mellomlangsvarsler cover forecasts of hazards that are expected to develop over several days to weeks and are aimed at facilitating preparedness and decision-making rather than immediate protective actions.

In practice, mellomlangsvarsler are issued by authorities responsible for public safety and risk management, such as meteorological services and civil protection agencies. A typical mellomlangsvarsel identifies the hazard type, the affected geographic area, the anticipated level of risk, and practical precautions for residents, businesses, and local authorities. The messages are disseminated through official websites, weather services, media outlets, and warning apps, and are often complemented by more immediate alerts when conditions evolve.

The concept serves as a bridge within the risk communication system, filling the gap between short-term warnings (issued for hours to days) and longer-term risk assessments. Mellomlangsvarsler provide strategic guidance for planning, resource allocation, and public awareness, helping communities prepare for events with significant lead times while avoiding unnecessary alarm.

See also: varsel; meteorologi; disaster risk reduction.