FQDL70 DWHA 171700 weather and sea bulletin for north- and baltic sea issued by marine weather service hamburg 17.09.2026, 1700 UTC: general synoptic situation: A low 988 Lapland moves to the Barents Sea. A trough extending to western Ukraine swings northeastwards. The Azores High 1032 weakens. A ridge extending to the Alps hardly changes. A deep low 978 Faroe Islands moves towards Haltenbank while weakening. An associated trough will swing across the North Sea on Thursday and across the Baltic Sea on Friday. Forecast Thursday: German Bight: wind: west to southwest 5 to 6. visibility/weather: locally shower with poor visibility. sea: 2,5 meter. Southwestern North Sea: wind: west to southwest 5 to 6. visibility/weather: locally thunderstorms with poor visibility. sea: at times 2,5 meter. Fischer: wind: southwest to west about 5. visibility/weather: at times shower with poor visibility. sea: western part later 3 meter. Skagerrak: wind: southwest to south about 5. visibility/weather: locally shower with poor visibility. sea: later 2 meter. Kattegat: wind: southwesterly winds about 5. visibility/weather: locally shower with poor visibility. sea: 1,5 meter. Belts and Sound: wind: southwest to south about 5. visibility/weather: locally shower with poor visibility. sea: at times 1,5 meter. Western Baltic: wind: southwest to south about 5. visibility/weather: later shower with poor visibility. sea: 1,5 meter. Southern Baltic: wind: southwest to south about 5. visibility/weather: later locally shower with poor visibility. sea: eastern part first 2 meter. Southeastern Baltic: wind: west about 5, shifting southwest later. visibility/weather: locally shower with moderate visibility. sea: increasing 2 meter. Forecast Friday: German Bight: wind: west to southwest 5 to 6, locally 7. visibility/weather: locally shower with poor visibility. sea: western part at times 3 meter. Southwestern North Sea: wind: west 5 to 6, shifting southwest, later locally 7. visibility/weather: locally shower with moderate visibility. sea: humber later 3 meter. Fischer: wind: southwest to west 5 to 6. visibility/weather: locally thunderstorms with poor visibility. sea: at times 3 meter. Skagerrak: wind: southwest 5 to 6. visibility/weather: locally shower with poor visibility. sea: increasing 2,5 meter. Kattegat: wind: southwest to west 5 to 6. visibility/weather: locally shower with poor visibility. sea: northern part later 2 meter. Belts and Sound: wind: southwest 4 to 5, locally 6. visibility/weather: locally shower with moderate visibility. sea: eastern part 1,5 meter. Western Baltic: wind: southwest to west about 5. visibility/weather: first shower with poor visibility. sea: eastern part at times 2 meter. Southern Baltic: wind: southwest to west about 5. visibility/weather: locally shower with poor visibility. sea: at times 2 meter. Southeastern Baltic: wind: southwesterly winds 5 to 6. visibility/weather: locally shower with poor visibility. sea: later 2,5 meter.