FQDL70 DWHA 181700

 

weather and sea bulletin for north- and baltic sea

issued by marine weather service hamburg

18.08.2026, 1700 UTC:



general synoptic situation:

A low over central Sweden barely changes. A secondary low 996 

over Belarus is moving towards Karelia while deepening. A ridge 

of the Azores High extends to the Alps and is weakening. A low 

998 south of Iceland is moving towards Northern Ireland while 

weakening slightly. On Wednesday morning, a secondary low 999 

Fischer will develop and move towards southern Sweden.





Forecast Tuesday:

German Bight:

wind: south to southwest about 3, shifting fast west and 

increasing 5.

visibility/weather: rain or shower with poor visibility, locally 

thunderstorms.

sea: 1,5 meter.

Southwestern North Sea:

wind: west to northwest 4 to 5.

visibility/weather: at times rain or shower with poor visibility.



sea: increasing 1,5 meter.

Fischer:

wind: variable directions 2 to 4.

visibility/weather: shower or locally thunderstorms with poor 

visibility.

sea: first 1,5 meter.

Skagerrak:

wind: southwesterly winds 3 to 4.

visibility/weather: in the night coastal fog patches.

sea: southwestern part first 1 meter.

Kattegat:

wind: first west about 3, otherwise light and variable winds.

visibility/weather: locally shower with moderate visibility.

sea: 0,5 meter.

Belts and Sound:

wind: southwesterly winds about 3, light and variable winds 

later.

visibility/weather: shower or locally thunderstorms with poor 

visibility.

sea: 0,5 meter.

Western Baltic:

wind: west about 3, shifting southwest to south.

visibility/weather: shower or locally thunderstorms with poor 

visibility.

sea: 0,5 meter.

Southern Baltic:

wind: westerly winds 4 to 5.

visibility/weather: locally shower or thunderstorms with poor 

visibility.

sea: for a time 1,5 meter.

Southeastern Baltic:

wind: southern part west to northwest about 4, otherwise light 

and variable winds.

visibility/weather: shower or locally thunderstorms with poor 

visibility.

sea: southern part for a time 1,5 meter.



Forecast Wednesday:

German Bight:

wind: westerly winds about 5, decreasing about 3.

visibility/weather: locally shower or thunderstorms with poor 

visibility.

sea: 1,5 meter.

Southwestern North Sea:

wind: west 4 to 5, at times shifting southwest to south, humber 

decreasing about 3.

visibility/weather: locally shower or thunderstorms with poor 

visibility.

sea: humber 1,5 meter.

Fischer:

wind: variable directions 3 to 5, shifting west to northwest 3 to

4.

visibility/weather: at times shower or thunderstorms with poor 

visibility.

sea: southwestern part for a time 1,5 meter.

Skagerrak:

wind: first southwest to south about 3, for a time light and 

variable winds, later westerly winds about 4.

visibility/weather: coastal fog patches, southern part at times 

rain or shower with poor visibility.

sea: western part later 1 meter.

Kattegat:

wind: first light and variable winds, otherwise variable 

directions 3 to 5, later west to northwest about 4.

visibility/weather: shower or thunderstorms with poor visibility.



sea: southern part increasing 1 meter.

Belts and Sound:

wind: first light and variable winds, otherwise southwest to west

4 to 5, locally 6.

visibility/weather: at times shower or thunderstorms with poor 

visibility.

sea: for a time 1,5 meter.

Western Baltic:

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

6.

visibility/weather: at times shower or thunderstorms with poor 

visibility.

sea: 1,5 meter.

Southern Baltic:

wind: west to southwest about 4, increasing 5 to 6.

visibility/weather: at times shower or thunderstorms with poor 

visibility.

sea: 1,5 meter.

Southeastern Baltic:

wind: northern part first light and variable winds, otherwise 

southwesterly winds about 4, increasing 5 to 6.

visibility/weather: shower or thunderstorms with poor visibility.



sea: later 1,5 meter.