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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.