During the day on Sunday a disturbance North Atlantic (No. 9 of the month) will quickly cross Northern Italy and part of the Center and then move on Monday to the Central-Southern regions where it will bring rains and thunderstorms that will end already in the early hours of Tuesday. This new disruption will be accompanied by a decisive reinforcement of the cold winds from the north (Tramontana and Mistral), which will cause the flow of an air mass of arctic origin, responsible for a sudden and significant drop in temperatures and the return of snow in the Apennines even up to 1000 metres; between Tuesday and Wednesday the weather will temporarily return to normal winter. Subsequently, milder currents will make their way towards the Mediterranean, favoring a sudden thermal rise with values that will return above the average.
Forecast for the next few hours
In the afternoon it worsens over much of the north with scattered rains and showers, less likely in Piedmont, but still rapidly decreasing from the west. Rains and showers arriving in the evening also on the central Tyrrhenian regions, in Umbria and Marche. Weather still quite stable elsewhere. Snow quota around 1400-1800 meters in the Alps, further lowering in the evening. Temperature highs decreasing in the North, without major variations elsewhere.
Venti from west or south-west to moderate or tense on the western seas. Seas: the Ligurian is very moved, locally moved the other western seas and the Ionian offshore, the remaining basins are not moved.
Forecast for Monday 27 March
In the Northwest weather predominantly sunny, except for gatherings in the alpine border areas and light snowfalls on the hills of the Valle d’Aosta. In the Northeast, mostly cloudy skies, but with the possibility of brief isolated showers on the Veneto plain and Romagna, more likely in the evening in Romagna. Scattered showers in the Center during the day, less probable in Tuscany; in the evening it gets worse in the Marche and in Abruzzo. Very unstable weather in the South, with locally intense showers and thunderstorms. Quote neve in the central Apennines around 1400/1500 metres, decreasing in the evening up to 1000/1200 m in Marche and Abruzzo. On the islands, it was a day with more sun, except for gatherings and occasional showers in the morning on north-western Sardinia.
Temperature: minimum without major variations, maximum decreasing in the central-southern regions and on the islands. Winds: strong to strong mistral on the surrounding islands and seas, moderate north-westerly winds on the central north; Foehn in the alpine valleys and on the foothill areas of the Northwest. Seas: the basins around the islands, the central and southern Tyrrhenian Sea are very rough or agitated; moved or very moved the others.
