Andrea Innocenti For Thursday, November 5th, eastern Sardinia has been classified as a red-code flood risk zone, with potential critical conditions concentrated in Gallura and Sarrabus, according to local press. The Civil Protection Department's criticality bulletin indicates that tomorrow, compared to today's assessment, the maximum level will increase to red in some areas of the island; the full text of the bulletin is available in the Civil Protection Department's criticality bulletin.
The national bulletin issued Wednesday, November 4, 2026, at 14:56 PM, reports a maximum orange level for today, Wednesday, November 4, with orange in Sardinia and yellow in Basilicata, Calabria, and Sicily. For tomorrow, Thursday, November 5, the maximum expected level is red with two red zones, both in Sardinia, and yellow in Sicily. The two red zones indicated are the Flumendosa-Flumineddu basins and Gallura: for the former, the bulletin indicates a red hydrogeological level, a yellow hydraulic level, and orange thunderstorms; for Gallura, a red hydrogeological level, a yellow hydraulic level, and orange thunderstorms.
Reported risks and timing
The bulletin distinguishes three main risks: hydrogeological (landslides, runoff, small streams), hydraulic (large rivers flooding), and thunderstorms (heavy downpours, lightning, hail, gusts). According to local press reports, eastern Sardinia is under red weather alert from midnight to 6:00 PM on Thursday, November 5th.
Today's bulletin reports the highest orange level concentrated in Sardinia, while tomorrow the situation will be more critical with red zones in the same region.
Measures on the territory
Some local governments have already ordered school closures for Thursday, November 5th, with ordinances issued in several municipalities, including provisions for the Olbia area, as reported by local media. Local media also report that the alert level has been raised for Thursday for the eastern part of the province, from the far north to the southern part known as Sarrabus.
For today, Wednesday, November 4th, an orange weather warning for thunderstorms had also been issued by regional monitoring centers, with indications of very intense phenomena, according to what was reported in the local press.
The bulletin remains the official source for the region-by-region breakdown and for details on risks and criticality levels.
What to do : Avoid underpasses, basements, and underground garages; don't stop near rivers and streams, and don't cross flooded roads; during thunderstorms, stay away from exposed areas and isolated trees; secure items on balconies and terraces. For emergencies, call 112 and follow updates from the Civil Protection Department and the Municipality.
Data: Department of Civil Protection – Hydrogeological and Hydraulic Criticality Bulletin, bulletin issued November 4, 2026, at 14:56 PM (CC BY 4.0 license). The bulletin forecasts criticality for alert zones: local measures are decided by Regions and Municipalities.