varsom

Varsom is the Norwegian avalanche information service that provides information to help people assess avalanche risk when planning winter activities in Norway. The service offers daily forecast information, current snow and weather conditions, and recent avalanche activity to support safer decision-making in the backcountry.

The core output of Varsom includes an avalanche danger rating and region-specific forecasts. It presents regional maps and text forecasts, along with safety advice for backcountry travelers, skiers, and climbers. The platform also includes safety recommendations, equipment checks, and guidance on decision-making to reduce exposure to avalanches.

Varsom is produced by a collaboration of Norwegian public agencies and research institutions, drawing on expert assessments and user observations. Data sources include weather models, snowpack sensors, on-site observations, and user reports submitted through the platform. The service is widely used by outdoor enthusiasts to plan trips and adapt plans in response to changing conditions.

Access to Varsom is via its website and mobile interfaces, with information organized regionally and updated during the winter season or after notable avalanche events. The information is presented in a clear, safety-focused manner to support prudent planning and personal responsibility in avalanche terrain.