WEATHER UNTIL MAY 29, 2023, ANALYSIS AND FORECAST
Italy does not enjoy the protection of the anticyclone, but suffers from a pressure gap with a rather unstable climate, favorable for storms encouraged by ascending movements. Two different vortices act within this great depression gap in the Mediterranean, the first in the Iberian south and the second in the Aegean. The high pressure field remains unbalanced over northern Europe.
The novelty is represented by the descent of a new core of cold air from Scandinavia which will take place, between Wednesday and Thursday, near the Alps over France. As a result, we will have a resurgence of atmospheric instability in the north, with thunderstorms moving more easily from the Alps to the plains, especially in the northwest.
The activity of the storms will also continue to be the protagonist in the rest of Italy, along the Apennine mountain range., with showers especially in the afternoon, attenuating at night. The precipitation will be irregular, since it will not be linked to the disturbance but simply to local development with diurnal evolution.
Not much news is expected over the weekend, although a partial increase in pressure could slightly reduce instability. Storms will always be lurking at least in the mountains. Temperatures will start to rise again a few degrees, especially in the north, with peaks close to 30 degrees slightly above average. The heat will not reach excessive levels for the moment.
Wednesday May 24: worsens in the North due to the approach of a vortex of fresh air coming from Central Europe. Thunderstorms from the Alps will spread to the Po Valley, especially north of the Po, with the risk of intense events in Piedmont at night. Scattered showers will also occur along the Apennines.
Thursday May 25: locally strong showers and thunderstorms in the northwest and west of Emilia, clearer in the northeast. Scattered thunderstorms also in the Apennine mountain range and in Sardinia.
Friday May 26: instability in the center-south of the Apennines and islands, more sun in the north.
More weather trends: the anticyclone will continue to be too weak to favor indisputable stability. However, there will be more sun through the weekend, with daytime storms more likely in the mountainous inland areas of the South and the Major Islands.
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