Brittany's Finistère, Morbihan, and Ille-et-Vilaine Under Orange Flood Alert Following Heavy Rains

On January 25, 2026, three departments in Brittany—Finistère, Morbihan, and Ille-et-Vilaine—remain under an orange flood alert due to ongoing heavy rains and river overflows. Météo-France confirmed these alerts will continue until January 26, as numerous Breton rivers are experiencing significant overflow. The region has been impacted by the passage of the storm depression Ingrid, which brought substantial rainfall.

According to the Vigicrues report issued at 6 a.m., floods are affecting various watercourses with notable overflows on the Laïta River in Finistère, especially concerning the high tide expected on Sunday morning. Floodwaters are advancing downstream on the Oust River, impacting Ille-et-Vilaine and Morbihan significantly. Compounding the situation, a new weather disturbance is anticipated to affect western France, including Brittany, with additional showers expected.

Authorities warn that the hydrological context, combined with forecasted rainfall between Monday evening and Tuesday noon, could lead to an escalation of alerts to an orange warning for rain-flooding in Finistère and Morbihan. Officials have issued these warnings to alert residents of the ongoing risks posed by the flooding and expected weather conditions.

This situation underscores the continuing vulnerability of Brittany's departments to flooding during winter storms and the critical role of monitoring systems like Vigicrues to anticipate and manage such natural hazards.