Weather situation
The Alps are now largely under the influence of high pressure on Wednesday, but are squeezed between a cuf-off-low in the west, which we will study in more detail below, and a trough in the east, which will still bring light snowfall in the eastern Alps. It's a situation of strong zonal contrasts and instability that still holds a few surprises in store with intense meridional currents.
Outlook
The western trough will drift away and the weather in the entire Mediterranean region will be influenced by a retrogradely moving "cut-off low". This will result in heavy precipitation across the entire eastern Mediterranean and snowfall from the Appeninn across the Balkans to the Peloponnese. The southern side of the Alps can also expect light snowfall at the weekend. Whether it will be enough for another PowderAlert is doubtful, however. But the snow conditions at high altitudes will certainly improve once again. The ski touring season should be considered open from next week at the latest.
Steger-Müller cyclones
It was only through the development of the PowderGuide map that a previously unknown meteorological phenomenon was discovered, which we will refer to below as the Steger-Müller cyclone (SMZ). The SMZ mainly occurs at equinox times and represents a polar air mass on the border to tropical latitudes. Surrounded by a weak zonal flow, it rotates around itself at latitudes of 30° and produces ring-shaped rain bands.
