FQDL70 DWHA 231400 weather and sea bulletin for north- and baltic sea issued by marine weather service hamburg 23.09.2026, 1400 UTC: general synoptic situation: A low 1012 Belarus fills as a low 1002 Romania moves to the Baltic States and deepens temporarily. A high 1025 southern Germany weakens. A low 1014 Forties moves to Skagerrak, temporarily deepening, and afterwards to the Southern Baltic Sea filling. An associated cold front moves from England to Poland. A trough follows. A high 1030 Ireland moves to Benelux. Forecast Wednesday: German Bight: wind: southwest about 4, shifting northwest, increasing about 7, gusts 10. visibility/weather: thunderstorms with poor visibility. sea: later 3 to 4 meter. Southwestern North Sea: wind: south to southwest about 4, shifting northwest to north, increasing 5 to 6. visibility/weather: thunderstorms with poor visibility. sea: increasing 2 meter. Fischer: wind: south to southwest about 5, shifting northwest, increasing 7 to 8, gusts 11. visibility/weather: thunderstorms with very poor visibility. sea: later 4 to 5 meter. Skagerrak: wind: southwest about 3, shifting south, later locally 5. visibility/weather: thunderstorms with poor visibility. sea: western part later 2,5 meter. Kattegat: wind: southwest 3, shifting south, increasing 4 to 5. visibility/weather: later rain with poor visibility. sea: later 1 meter. Belts and Sound: wind: southwesterly winds about 3, increasing about 5. visibility/weather: later thunderstorms with poor visibility. sea: later 1 meter. Western Baltic: wind: southwesterly winds about 3, increasing about 5. visibility/weather: later thunderstorms with poor visibility. sea: later 1 meter. Southern Baltic: wind: west to southwest about 3. visibility/weather: later rain with poor visibility. sea: at times 1 meter. Southeastern Baltic: wind: northwesterly winds about 5, decreasing 3 to 4. visibility/weather: good visibility. sea: first 2 meter. Forecast Thursday: German Bight: wind: north to northwest about 7, gusts 10, decreasing 4, shifting west later. visibility/weather: locally shower with moderate visibility. sea: 3 to 4 meter, later 1,5 meter. Southwestern North Sea: wind: northwest to north about 5, for a time abating, later southerly winds about 4. visibility/weather: in the night coastal fog patches. sea: first 2 meter. Fischer: wind: north to northwest 7 to 8, gusts 11, decreasing 4, shifting west later. visibility/weather: eastern part first shower with poor visibility. sea: 4 to 5 meter, later 1,5 meter. Skagerrak: wind: first southerly winds about 4, otherwise light and variable winds, for a time northwest about 4. visibility/weather: first thunderstorms with poor visibility, later coastal fog patches. sea: western part first 2,5 meter. Kattegat: wind: first south 4 to 5, otherwise light and variable winds. visibility/weather: at times shower with poor visibility, later coastal fog patches. sea: first 1 meter. Belts and Sound: wind: southwesterly winds about 5, shifting fast northwest, later decreasing 3 to 4. visibility/weather: first thunderstorms with poor visibility, later coastal fog patches. sea: for a time 1,5 meter. Western Baltic: wind: southwest 5 to 6, locally 7, shifting fast northwest, later decreasing 4. visibility/weather: first thunderstorms with poor visibility, later coastal fog patches. sea: for a time 2 meter. Southern Baltic: wind: southwest 3 to 4, shifting northwest, for a time light and variable winds. visibility/weather: at times rain with poor visibility, later coastal fog patches. sea: southern part at times 1,5 meter. Southeastern Baltic: wind: westerly winds 3 to 4, for a time light and variable winds, eastern part later increasing 5. visibility/weather: locally shower with moderate visibility. sea: 1 meter.