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SITUATION. The changing vortex today, Tuesday, from north to south along the Tyrrhenian Sea, will reach Sicily on Thursday afternoon and around its center a disturbance will revolve that will determine very unstable weather in the south and in the Adriatic regions for another 48/72 hours. At this stage it is expected even intense and stormy phenomena, although as the hours pass the conditions will begin to improve from the middle side of the Adriatic. They will also rotate around the vortex. strong cyclonic rotation windsset to spread from the northern quadrants on Thursday to much of Italy. On the other hand, conditions will improve rapidly in the North. and in the Tyrrhenian Sea of medium height, with large clearings already on Wednesday. Here are the details of the expected weather through Thursday:
WEDNESDAY WEATHER. Toward North Good weather will prevail with generally clear or slightly cloudy skies, except for residual thickening over Romagna and the borders of South Tyrol. Toward Center residual variability on the Tyrrhenian side with recent rains in Lower Tuscany and Lazio, decreasing and followed by clear gusts. Definitely more unstable in Umbria and on the Adriatic side, with rain and showers that will decrease at night in the Alta Marca. Snow will decrease in the Apennines to 1300/1500 m. Toward South initial instability in Campania with some rains that decrease, followed by partial clearings. Unstable in the other sectors with rains and showers that will also be strong and storms between the afternoon and evening in Salento, Ionian Calabria and eastern Sicily. In Sardinia unstable weather with rain and storms, locally intense on the Tyrrhenian side. The snow in the Gennargentu Mountains decreases up to 1500 m. winds strong from the northeast over the north-central regions, more attenuated from the southwest towards the south. Temperatures decreasing.
THURSDAY’S WEATHER. Toward Northern conditions of stability and good weather, with some passage of thin clouds in the morning. Toward Center large clearings in the Tyrrhenian and Umbrian regions, irregularly cloudy on the Adriatic slope with greater cloudiness in Abruzzo but without significant phenomena. Toward South still unstable weather with rain and thunderstorms in Lucania, Calabria, especially in the Ionian, and in east-central Sicily; rains decrease in Puglia, greater variability in Campania with some rain in Cilento. In Sardinia improves with increasing gaps. winds tense or strong from the northeast, from the southwest in the Ionian. Temperatures descending even further, especially in the minimum temperatures in the North with possible night frosts in the plains. For the trend until the weekend Click here.
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Even in high pressure conditions, in the middle of summer, short, localized but sometimes intense storms can suddenly form and surprise us: they are so-called “heat storms” and are most likely between the end of the afternoon and the beginning of the night.