During wintertime the snow depth map is normally published on Thursdays at around 9.30 am, but it appears more frequently if necessary. It shows the mean snow depth at 2000 m (2500 m in the early and late winter months) and is based on measurements taken by the SLF and MeteoSwiss.
The snow depth at 2000 m is calculated from all the data captured between 1600 m and 2400 m; the depth at 2500 m is calculated from all the data captured between 2100 m and 2900 m. If there is sufficient snow in the Jura region, the snow depth there is stated as well. The lower reference altitude applicable in such cases is also indicated.
The snow depth map provides a general survey of the current snow depths at the specified altitudes on horizontal surfaces that are largely protected from the wind. On slopes and in places influenced by the wind, actual snow depths can differ substantially from the stated values. In many cases, the amount of snow in these places is lesser.
The snow depth also varies with altitude. The most reliable indicator of this variation is the map with measured data at stations. A specific altitude zone can be selected with the hamburger button (≡) at the top right of this map.