FQDL70 DWHA 210800 weather and sea bulletin for north- and baltic sea issued by marine weather service hamburg 21.10.2026, 0800 UTC: general synoptic situation: An extensive high 1040 western Russia moves slowly eastward. A ridge southern Norway will begin to retreat eastward from Thursday morning. The trough of a low 995 just west of Dogger swings northward across the German Bight and Fisher on Wednesday. A low 997 English Channel moves northeastward while deepening and will reach the coast of southern Norway on Thursday evening. Its trough will swing from northern France to southern Sweden. The ridge of the Azores High 1028 will build northeastward towards Poland by Thursday evening. Forecast Wednesday: German Bight: wind: southeast 5 to 6, shifting south to southwest, southwestern part later increasing 7. visibility/weather: rain with partly poor visibility. sea: southwestern part increasing 4 meter. Southwestern North Sea: wind: humber first southeast about 5, otherwise southwesterly winds, increasing 7 to 8. visibility/weather: shower with poor visibility. sea: increasing 5 meter. Fischer: wind: southeasterly winds 5 to 6, locally 7. visibility/weather: rain with moderate visibility. sea: northwestern part first 4 meter. Skagerrak: wind: northeast to east about 6, shifting southeast and decreasing 4 to 5. visibility/weather: rain with partly poor visibility. sea: first 2,5 meter. Kattegat: wind: east 4 to 5, first locally 6, shifting southeast to south. visibility/weather: rain with partly poor visibility. sea: first 1,5 meter. Belts and Sound: wind: southeasterly winds 4 to 5, shifting southwest later. visibility/weather: rain with partly poor visibility. sea: first 1 meter. Western Baltic: wind: south to southeast about 4, shifting southwest later. visibility/weather: rain with partly poor visibility. sea: first 1 meter. Southern Baltic: wind: southeast to south 4 to 5, first locally 6. visibility/weather: first rain with poor visibility. sea: eastern part first 2 meter. Southeastern Baltic: wind: southeast 5 to 6. visibility/weather: locally misty. sea: 2,5 meter. Forecast Thursday: German Bight: wind: south to southwest 6 to 7, for a time shifting west, decreasing 4. visibility/weather: for a time shower or thunderstorms with poor visibility. sea: southwestern part first 5 meter. Southwestern North Sea: wind: westerly winds about 7, for a time decreasing 4, shifting south later and increasing 6. visibility/weather: locally shower or thunderstorms with poor visibility. sea: humber first 5 meter. Fischer: wind: south to southeast 5 to 6, increasing fast 7, for a time shifting west to southwest, later abating. visibility/weather: shower with moderate visibility. sea: for a time 4 meter. Skagerrak: wind: southeast about 5, shifting southwest to west, later decreasing 3 to 4. visibility/weather: first rain with poor visibility. sea: western part for a time 2,5 meter. Kattegat: wind: south to southeast 4 to 5, for a time locally 6, shifting southwest, later abating. visibility/weather: first rain with poor visibility. sea: 1 meter. Belts and Sound: wind: southwesterly winds about 4, for a time increasing 5 to 6. visibility/weather: first rain with poor visibility. sea: for a time 1,5 meter. Western Baltic: wind: southwest about 4, for a time increasing 5 to 6. visibility/weather: first rain with poor visibility. sea: for a time 1,5 meter. Southern Baltic: wind: south to southeast about 4, locally 6, fast shifting southwest to west. visibility/weather: rain with partly poor visibility. sea: 1,5 meter. Southeastern Baltic: wind: southeast about 5, veering slowly at west to northwest. visibility/weather: later rain with poor visibility. sea: for a time 3 meter.