several weather alerts throughout Brittany

Do not store your umbrella in Brittany. Rain is still on the cards this week. Wednesday January 8, 2025, Forecasters are announcing significant amounts of rain with strong winds. The point.

Yellow “rain-flood” alert

“A disturbance arrives from South Brittany during the night from Tuesday to Wednesday accompanied by rain which could last until Wednesday evening,” indicates Météo France.

The Breton departments are placed in yellow vigilance Wednesday January 8, 2025:

• Finistère: rain-flood
• Côtes-d’Armor: rain-flood
• Ille-et-Vilaine: wind, rain-flooding and floods
• Morbihan: wind and rain-flood
• Loire-Atlantique: wind and rain-flood

For example, for Morbihan, the department is placed on yellow alert for the risk of significant accumulations of rain from 6 a.m. to midnight.

What to expect?

According to Temps Breton, with soils saturated by recent precipitation, “continuous rains should deposit significant accumulations and floods are to be feared in many sectors.

The heaviest precipitation will occur on Wednesday between 10 a.m. and 1 p.m. with cumulative amounts reaching 20 mm in three hours. Over the entire episode, the accumulations will be around 30 mm across the entire department. We can locally reach 40 mm, very locally 50 mm in 24 hours. Note that this rain impacts soils which are already saturated by the rains of recent days.

For Météo Bretagne, it will be necessary to monitor Oust, Ille, Vilaine, Seiche and Meu which already present very high levels this Tuesday, January 7, 2025. “Urban runoff and flooding could also affect the south of Finistère and Morbihan,” add the forecasters.

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