The Grand Morin, the Yerres, the Marne, the Oise sometimes have difficulty flowing into the Seine. The Seine, for its part, remains on green alert in the department, but changes to yellow for its entire crossing of Paris.

The Oise is still placed on yellow alert on its Val-d'Oisienne part this Friday, according to the VigiCrues bulletin. Levels will remain high throughout the weekend, and depend on expected rainfall.