Huge temperature anomaly in Poland. What will happen on Monday

– On Monday, the weather in Europe and Poland will be controlled by the giant than Sigrid, also known as Bert. The award itself proves his rank – said tvnmeteo.pl forecaster Tomasz Wakszyński.

The centers of the barometric system are located over the North Sea (where the pressure reaches 967 hectopascals) and in the north of Scandinavia (978 hPa). The system will bring dangerous weather in many places, but Central Europe, including Poland, will be in its “warm section”.

As the forecaster explained, much warmer and relatively dry air will flow into the country from the southwest. A clear wedge of heat reaching to Estonia will give us the advantage of the sun – only translucent high- and mid-level clouds may appear. Additionally, with a southerly air flow in the mountainous region, a classic foehn effect will appear – a dry, warm wind will blow.

On Monday, most of Central Europe and the Baltic countries and parts of southern Scandinavia will record an exceptionally high temperature anomaly. According to the model of the European Center for Medium-Range Weather Forecasts (ECMWF), the temperature at an altitude of two meters will be much higher compared to long-term data from the period 1981-2010. In Poland, the “positive” anomaly may exceed 8-9 degrees Celsius in most parts of the country, in some places even reaching 10 degrees Celsius.

– The maximum temperature on the coast and the west will be 13-15 degrees Celsius, and the highest values ​​can be expected in the southwestern regions – said Wakszyński.

The forecaster explained that the advection of very warm air is shown even more clearly by the analyzes of the upper barometric fields, where, conventionally, from about 850 hPa (corresponding to an altitude of about 1.5 kilometers) we can already talk about a “free atmosphere”, where the analyzes are not disturbed by friction forces, terrain roughness and other local phenomena that may affect air movement. Tomorrow we will be in the “core” of this warm air flow, which is clearly visible on the map below.

The heat wedge is also very clearly visible on maps, which are often referred to as a determinant of the presence of individual air masses, i.e. the equivalent-potential temperature distribution. In the graphic below, arctic air masses are marked in pink and purple, shades of blue are cold polar air, green is marked warm polar air, and yellow and orange are masses of tropical origin.

Tomorrow, warmer air will reach Estonia and even travel further north, to central Finland. The maximum temperature in southwestern Germany will reach up to 19 degrees Celsius.