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level at Wismar dropping as low as 452 cm. Levels soon began to rise again, but with a very 
irregular pattern caused by the rather variable onshore NW - N storm. The amplitudes of sea 
level oscillations were greater in the west, although the maximum in this section of the coast 
was recorded at Swinoujscie, where 584 cm was reached in the night of 16 April. 
Culmination in Kotobrzeg, Sassnitz, Warnemünde and Wismar was observed between 9 and 
11 UTC on 15 April, with values of 568 cm, 561 cm, 570 cm and 582 cm, respectively. 
In relation to the reference level indicator (521 cm on 11 April) this surge lasted from 112 
hours in Kotobrzeg to 120 hours in Warnemünde.