Weather forecast, an Atlantic disturbance is arriving between Tuesday and Wednesday: rain and thunderstorms

The new week will mark a clear change of pace compared to the previous days, proposing a decidedly more dynamic and fully autumnal scenario, particularly in the first half. The advancement of the western currents will favor the arrival of a well-organized disturbance directed towards the Mediterranean basin.

Instability

Federico Brescia, meteorologist at iLMeteo.it, explains that on Monday conditions of marked instability will be confirmed in the North-West, with locally intense phenomena which will primarily affect Western Liguria. Between Tuesday and Wednesday, the entry of the very extensive Atlantic perturbed system will lead to a phase of widespread precipitation across much of the country. The regions of the North-West, and in particular Liguria and Piedmont, will be exposed to continuous and abundant rainfall.

Thunderstorms and winds

By Wednesday afternoon, overall accumulations could exceed 100-150 mm in the Savonese area. With the progressive advancement of the front, by Wednesday afternoon the rainfall will extend to almost the entire national territory. Particular attention should be paid to the Tyrrhenian sectors, Tuscany and Lazio first and foremost, which are traditionally more exposed to this type of Atlantic configurations. From Wednesday the winds will move from the western and south-western quadrants: the intense Libeccio currents which will blow at over 40 km/h could generate storm surges along the exposed coasts of Liguria and Tuscany with waves up to 3-4 meters high. From Thursday, following the transit of the disturbance, there will be a drop in minimum temperatures of around 2-4°C.

In detail

Monday 19. In the North: light rains in Piedmont and Liguria. In the Center: rainy places on the coasts of Tuscany, sunnier elsewhere. In the South and on the Islands: instability on the Major Islands and on the Ionian sides.•

Tuesday 20. In the North: intense rain in the North-West (over 70-90 mm of accumulation in 24 hours). In the Centre: worsens by evening in Tuscany and Lazio. In the South and on the Islands: thunderstorms in Sardinia, more stable elsewhere.

Wednesday 21. In the North: unstable with thunderstorms especially in Eastern Liguria and Triveneto. In the Center: showers and thunderstorms on the Tyrrhenian areas, better on the Adriatic. In the South: thunderstorms in Campania, widespread instability elsewhere.

Trend: new disturbed passage, but much weaker and faster expected between Friday 23rd and Saturday 24th.