Hurricane Erin has generated a cyclonic swell along the French Atlantic coast, particularly impacting the Gironde department and the broader southwestern coastline. Waves reaching heights of four to six meters have been reported since Tuesday, prompting authorities to close several beaches, including in Biarritz and Biscarrosse, and to issue warnings for public safety. The phenomenon is considered unusual for the summer season and has led to the evacuation of some beaches. Lifeguards in affected areas such as Lacanau remain vigilant due to the heightened risk posed by the swell. The cyclonic swell is expected to persist until Friday, exacerbated by strong tidal coefficients. Meanwhile, the remnants of Hurricane Erin are moving northeast, bringing heavy rainfall to southern Wales, northern Italy, and parts of the Swiss Alps, increasing the risk of flooding and landslides in those regions.