5-day precipitation sum for 13-17 November 2002
During this event, extremely large amounts of precipitation fell over the central Alpine north slope, in the Grisons and in Ticino. The highest 5-day precipitation was measured in Ticino at station Mosogno (637.1 mm) and represents more than three times more precipitation than the amounts recorded on average in November at that station (norm 1981-2010). In comparison with other stations in Switzerland, this amount represents as much as the average yearly precipitation for stations Sion and Zermatt (norm 1981-2010).
For most of the other stations located within the affected area, the 5-day precipitation measured between 13 and 17 November 2002 was also very high and corresponds to two to three times the amounts recorded on average in November.