Snow warnings are issued throughout the year.

Snow warnings are issued only for danger levels 2-5.

Effects:

Slippery conditions due to snow-covered roads

Behaviour:

• Keep an eye on local weather developments
• Always follow the official recommendations
• Pay attention to daily avalanche bulletins and additional information from the Institute for Snow and Avalance Research

Description of measurement and prognostic values:

• Snowfall (Western Switzerland, south of the Alps): Lowland areas: 5-10 cm (in max. 24 h), Mountains: 20-40 cm (in max. 24 h)
• Snowfall (German-speaking Switzerland, Canton Fribourg): Lowlands: 5-15 cm (in max. 24 h), Mountains: 20-40 cm (in max. 24 h)

Effects:

• Worsening of road condition
• Disruption to air and rail travel
• Branches breaking due to snowload

Behaviour:

• Keep an eye on local weather developments
• Always follow the official recommendations
• Pay attention to daily avalanche bulletins and additional information from the Institute for Snow and Avalance Research

Description of measurement and prognostic values:

• Heavy/intensive snowfall in lowland areas of German-speaking Switzerland: 15-30 cm/24 h
• Heavy/intensive snowfall in lowlands of Western Switzerland and south of the Alps: 10-30 cm/24 h
• Heavy/intensive snowfall in the mountains: 40-70 cm/24 h, 70-100 cm/48 h, 100-140 cm/72 h

Effects:

• Impassable sections of road;
• Disruption to air and rail travel;
• Falling branches or trees as a result of the weight of their snowload;
• Interruption of electricity supply and/or telephone network, particularly in regions that are not easily accessible;
• Heavy snowload on roofs.

Behaviour:

• Keep an eye on local weather developments
• Always follow the official recommendations
• Pay attention to daily avalanche bulletins and additional information from the Institute for Snow and Avalance Research

Description of measurement and prognostic values:

• Heavy/intensive snowfall in lowland areas of German-speaking Switzerland: 30-50 cm/24 h
• Heavy/intensive snowfall in lowlands of Western Switzerland and south of the Alps: 30-50 cm/24 h
• Heavy/intensive snowfall in the mountains: 70-100 cm/24 h, 100-140 cm/48 h, 140-180 cm/72 h

Effects:

• Road and air traffic is brought to a standstill
• Massive disruption to rail transport
• Falling branches or trees as a result of the weight of their snowload
• Heavy snowload on roofs
• Breakdown of electricity supply and telephone communications network

Behaviour:

• Keep an eye on local weather developments
• Always follow the official recommendations
• Pay attention to daily avalanche bulletins and additional information from the Institute for Snow and Avalance Research

Description of measurement and prognostic values:

• Heavy/intensive snowfall in lowland areas of German-speaking Switzerland: >50 cm/24 h
• Heavy/intensive snowfall in lowlands of Western Switzerland and south of the Alps: >50 cm/24 h
• Heavy/intensive snowfall in the mountains: >100 cm/24 h, >140 cm/48 h, >180 cm/72 h