FQDL70 DWHA 200000

 

weather and sea bulletin for north- and baltic sea

issued by marine weather service hamburg

20.08.2026, 0000 UTC:



general synoptic situation:

A low 992 Lake Ladoga moves to the Kola Peninsula while 

weakening. The shallow ridge of a high 1016 Romania shifts from 

southern Finland to northwestern Russia. A low 997 Skagerrak 

moves across southern Sweden to the Gulf of Finland where it will

fill up by Friday morning. Another low 1000 Irish Sea moves to 

the southwestern North Sea and will fill up by Thursday evening. 

A secondary low 1000 northern North Sea moves to southern Sweden 

while filling up as well.





Forecast Thursday:

German Bight:

wind: southwesterly winds 3 to 4, southern part locally 5, 

northwestern part shifting northwest.

visibility/weather: thunderstorms with poor visibility.

sea: 1 meter.

Southwestern North Sea:

wind: southwesterly winds about 4, thames locally 6, shifting 

northwest to north.

visibility/weather: thunderstorms with poor visibility.

sea: at times 1,5 meter.

Fischer:

wind: west to northwest about 3, later about 4, southern part for

a time light and variable winds.

visibility/weather: southern part locally thunderstorms with poor

visibility.

sea: 1 meter.

Skagerrak:

wind: northern part first light and variable winds, otherwise 

west 4 to 5, shifting southwest.

visibility/weather: southern part locally thunderstorms with poor

visibility.

sea: later 1,5 meter.

Kattegat:

wind: westerly winds 4 to 5, for a time shifting south.

visibility/weather: at times thunderstorms with poor visibility.

sea: southern part first 1,5 meter.

Belts and Sound:

wind: westerly winds about 4, for a time shifting south.

visibility/weather: at times thunderstorms with poor visibility.

sea: first 1 meter.

Western Baltic:

wind: west 4 to 5, shifting southwest, for a time decreasing 3.

visibility/weather: at times thunderstorms with poor visibility.

sea: 1 meter.

Southern Baltic:

wind: west to southwest 4 to 5, for a time shifting south.

visibility/weather: at times thunderstorms with poor visibility.

sea: 1,5 meter.

Southeastern Baltic:

wind: west to southwest about 5, decreasing 3 to 4, shifting 

south later.

visibility/weather: at times thunderstorms with poor visibility.

sea: 1,5 meter.



Forecast Friday:

German Bight:

wind: southeastern part first southwest 4 to 5, otherwise 

northwest about 4.

visibility/weather: locally thunderstorms with poor visibility.

sea: northwestern part later 2 meter.

Southwestern North Sea:

wind: northwest to north about 4, locally 6.

visibility/weather: thunderstorms with poor visibility.

sea: humber 2 meter.

Fischer:

wind: northwest 4, increasing 5 to 6, northeastern part locally 

7.

visibility/weather: shower with moderate visibility.

sea: increasing 2,5 meter.

Skagerrak:

wind: southwest to west 4 to 5, western part increasing 6, 

northern part shifting northwest.

visibility/weather: locally thunderstorms with poor visibility.

sea: western part increasing 2,5 meter.

Kattegat:

wind: west to southwest 3 to 4, increasing about 5.

visibility/weather: first thunderstorms with poor visibility.

sea: later 1,5 meter.

Belts and Sound:

wind: southwest to west 3 to 4.

visibility/weather: locally thunderstorms with poor visibility.

sea: 0,5 meter.

Western Baltic:

wind: southwest 4 to 5, shifting northwest, for a time decreasing

3.

visibility/weather: locally thunderstorms with poor visibility.

sea: 1 meter.

Southern Baltic:

wind: southwest 3 to 4, locally 5, shifting west later.

visibility/weather: at times thunderstorms with poor visibility.

sea: 1 meter.

Southeastern Baltic:

wind: south to southwest 3 to 4, locally 5.

visibility/weather: at times thunderstorms with poor visibility.

sea: 1 meter.