Edward Marchesi The bad weather continues unabated: a new low-pressure system is expected on Wednesday, November 4, 2026 , which will redistribute clouds and precipitation across large areas of the country. The Civil Protection Department has updated its critical situation assessment, signaling an orange alert level for eastern Sardinia and a yellow alert level for much of Basilicata.
The arrival of the disturbed system will also affect the North-West and the Tyrrhenian coast in variable conditions.
Areas with confirmed alerts and risk levels
For Wednesday, November 4th, the national weather alert map indicates two criticality levels. Specifically, an orange alert has been issued for the entire eastern part of Sardinia due to the risk associated with potentially severe thunderstorms.
A yellow alert has been issued for Basilicata due to hydrogeological risk affecting large portions of the region. Both levels require attention: orange indicates the possibility of significant phenomena in limited areas, while yellow signals local criticalities and disruption.
Details on the alert in Sardinia
The most significant criticality concerns eastern Sardinia , with particular attention to the exposed basins and coasts.
From Wednesday evening, showers are likely to intensify, potentially resulting in severe thunderstorms along the eastern coast. Regional authorities have warned of the possibility of localized flooding, traffic disruptions, and critical situations in vulnerable areas near waterways and urban areas prone to water accumulation.
Italian areas affected by the disturbance
The weather forecast indicates a pattern of unevenly distributed instability. In the North, precipitation is expected in the Aosta Valley, western Piedmont, Liguria, and the Emilia-Romagna Apennines . In Central Italy , severe weather is expected, especially in northern Tuscany and the central and southern Tyrrhenian areas of the region, as well as northern Lazio . On the islands, the most critical situation remains in eastern Sardinia , but showers are also possible in northeastern Sicily . Among the southern regions, southern Calabria could experience rain and localized thunderstorms.
Air Force Forecast for the Northwest
The Italian Air Force is reporting very cloudy skies in the northwest on Wednesday morning, with the first light rain showers extending toward the Emilia-Romagna Apennines. The low pressure system will consolidate in the coming hours, increasing the likelihood of more intense storms in some areas and maintaining more variable conditions in other central regions.
Recommended behaviors and possible effects on the territory
Weather warnings are not precise predictions but tools for preparing a risk response. In the event of an orange or yellow alert , it is advisable to monitor updates from the Department of Civil Protection and follow the instructions of local authorities. Expected effects include local flooding , temporary road closures, and critical conditions near waterways. Particularly in the eastern coastal areas of Sardinia, worsening conditions from this evening may require protection measures for sensitive infrastructure.
According to forecasts, the disturbance will not end on Wednesday alone: the bad weather is expected to persist over the following days, concentrated in the same areas indicated, particularly the Northwest and Sardinia . To stay informed about the evolution of weather conditions, it is essential to follow the official bulletins and updates from the Civil Protection Department.