 The storm lasted for three days, significantly delayed the Allied build-up.Most of the landing craft and ships already at sea were driven back to ports in Britain; towed barges and other loads (including of floating roadways for the Mulberry harbours) were lost and were stranded on the Normandy beaches, until the next high tides in July.After a few days to recover from the storm, the British began Operation Epsom on 26 June.