Sea level and surface current through one day of spring tide. Between Brittany and the Cotentin the tide rises and falls by up to about 13 metres in the bay of Mont-Saint-Michel, one of the largest ranges in the world. North of the Channel Islands the same tide runs through the Raz Blanchard at around 10 knots.
Source: Model: E.U. Copernicus Marine Service, IBI Analysis and Forecast (IBI_ANALYSISFORECAST_PHY_005_001), every 30 minutes at 1/36°. Coastline: Natural Earth
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