WeatherBlog 18 2017/18 | Still wintry and snow in the south

A southwesterly flow means, as demonstrated just two days ago, southstau and south föhn, depending on which side of the flow obstacle you are on. Both the Föhn and the focus of the precipitation will shift from west to east from this evening/night until tomorrow evening.

Even tonight, precipitation will start to fall in the western southern conurbations, with the snow line likely to vary considerably locally. Tomorrow evening, the Dolomites, Julian Alps and Co. will get theirs. At the same time, the Föhn will probably stop again in the north sometime around Thursday evening. It will be interesting to see whether the oracle will make another statement at short notice. Friday will be generally calmer and quite friendly in the west. It will remain cloudy for longer in the east, but it will also clear up here from the west.

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500hPa geopotential and ground pressure, Thursday 15.3. the low pressure is approaching and the Alps are caught in a strong SW current, which brings heavy precipitation in the south. — 500hPa geopotential and ground pressure, Thursday 15.3. the low pressure is approaching and the Alps are moving into a strong SW current, which will bring heavy precipitation in the south
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Winter at the weekend

Last Sunday, Germany exceeded the 20 degree mark for the first time this year and it was almost like early summer in the northern Alps with foehn winds. To compensate for this, it will be quite cold again next weekend - double-digit minus temperatures are not unlikely, even in the valleys. Northern Germany could also get very cold and the conditions for a "Baltic Sea Lake Effect" seem quite favorable again if anyone wants to go jibbing on the beach.

A high over Scandinavia is responsible for this. Already present to some extent, it will develop into a larger structure blocking the Atlantic over the next few days. Our current southern depression is still slipping "underneath" (south) of it and will tap into cold air from the east at the weekend, which will be brought into the vicinity by the position of the high.

500hPa geopotential and ground pressure, Saturday 17.3. The low pressure may tap colder air masses in the east and it will be significantly cooler with a tendency towards gray weather. — 500hPa geopotential and ground pressure, Saturday 17.3. The low pressure may tap into colder air masses in the east and it will be significantly cooler with a tendency towards gray weather.

meteociel.fr

This constellation will result in precipitation in the Alps, especially in the south-east. Whether, when, where and how much depends primarily on whether a Mediterranean low can take advantage of the cold air. It will be interesting to see.

Shortly before the spring equinox, winter will once again do the honors. It looks suitably spring-like again at the moment, but until then there is still a lot of water flowing down the river. So gaseous water flows along the atmospheric circulation. You know what I mean.