Federal Office of Meteorology and Climatology MeteoSwiss

Warning tresholds, impacts and recommendations



Level 1
no or minor danger		 The weather development is normal for the season. However, dangerous meteorological phenomena are possible on a local level.
Level 2 (yellow)
moderate danger 		Dangerous weather conditions are to be expected with meteorological phenomena that are, however, normal for the respective season.
Level 3 (orange)
considerable danger 		Dangerous weather conditions are to be expected, with meteorological phenomena of an intensity slightly superior to the normal.
Level 4 (red)
high danger 		Dangerous weather conditions are to be expected, with meteorological phenomena of unusual intensity.
Level 5 (dark red)
very high danger		 Dangerous weather conditions are to be expected, with meteorological phenomena of very high intensity.
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