I mumbled back: "mhm, homma long ned g'habt!" and was pleased, as I often have been, about the great suitability of the weather as an innocuous topic of conversation with strangers. From a climatological point of view, the current frosty temperatures are actually like winter, or rather quite normal for the time of year. The fact that we notice it so clearly is mainly due to the fact that it has usually been quite warm in recent years. In Innsbruck, for example, there was a pair of so-called ice days this week for the first time in about two years, where the maximum temperature remained below zero degrees.
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WeatherBlog 9 2020/21 | Winter-like temperatures
North jam and chairlift talks
Lots of sun and very cold: In the days before the current snowfall, surface frost has formed widely. Watch out!
LH
After the labyrinthine social distancing lift queuing system had brought us together by chance and we had taken our seats as far apart from each other as possible in the four-seater chair, my lift colleague mumbled through his FFP2 mask: "A temperature like in winter!"
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500hPa geopotential and ground pressure, 13.1.21. Northern congestion in the Alps with relatively cold air from the northeast.
meteociel.fr
500hPa geopotential and ground pressure, 13.1.21. Northern congestion in the Alps with relatively cold air from the northeast.
meteociel.fr
It is and will remain wintry cold. As already announced by the oracle, there will finally be snow for the north as well as cool temperatures. The PowderAlert knows where and how much to expect.
We look at the synoptic situation for the alert: The main responsible low pressure system, Dimitrios, is located in the southern Scandinavia/Baltic Sea area. Yesterday, Tuesday, a warm front first reached the Alpine region and ended the bright winter weather with a dense umbrella of high clouds. This was closely followed by a cold front towards the evening and widespread snowfall in the north. Dimitrios will continue to bring snow today, especially in the congested areas, always with fairly low temperatures, as Dimitrios is relatively far to the east and can therefore tap into the colder air masses from the North Sea. In classic north-westerly accumulations, the air tends to come from the direction of the much warmer Atlantic (in the DWD topic of the day there was recently a good explanation of different air masses). The snowfall will intensify again on Thursday night with the next warm front, this time from the next low pressure system, which is already waiting in the wings over the British Isles. Thursday will be mostly cloudy, but the snowfall should gradually subside. Friday will be friendlier and quite sunny, especially in the east, with still relatively cold temperatures. Be sure to check the avalanche situation when you're out and about! South of the main Alpine ridge, it remains more or less dry throughout this precipitation phase and often quite sunny with north föhn.
Lots of sun and very cold: In the days before the current snowfall, surface frost has formed widely. Watch out!
LH
Lots of sun and very cold: In the days before the current snowfall, surface frost has formed widely. Watch out!
LH
Further outlook, other
What will happen at the weekend is still relatively uncertain. From today's perspective, Saturday will be widely sunny before it starts to get cloudy again on Sunday with further chances of snow for the start of the week. It will tend to remain cool and unsettled with a north to north-westerly flow - a high over the Iberian Peninsula is moving northwards and steering Atlantic lows towards us on its eastern side.
About the Iberian Peninsula: The basis is now also right here after the extreme snowfall a few days ago. What is certainly nice for the mountain regions also looks nice in Madrid and the surrounding area, but of course also causes many problems there, such as massive traffic chaos and power cuts. For residential areas in the Alps, half a meter of snow is not necessarily an everyday occurrence, but it does happen from time to time. You have winter tires, snow chains, etc. and you know that the snow clearing service will come sooner or later. It hasn't snowed this much in Madrid for more than 50 years. Many of the city's residents have probably never experienced such an event. Apart from the practical difficulties, this weather event will certainly provide material for small talk for years to come! (Pictures here, for example.)
Front map, 13.1.21. There is currently a long cold front on the Alpine arc. The warm front of low Dimitrios has already passed through in the night. The next low pressure system is already on the doorstep and will be involved this evening and tomorrow.
ZAMG
Front map, 13.1.21. There is currently a long cold front on the Alpine arc. The warm front of low Dimitrios has already passed through in the night. The next low pressure system is already on the doorstep and will be involved this evening and tomorrow.
ZAMG
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hTranslated from German.
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