North Sea shipping forecast Issued by KNMI at 08:02 UTC 300622. Gale warnings: There are no warnings. Synopsis: low 1003 northwest of Scotland changing hardly. associated trough over the North Sea moving slowly northeast. Forecast valid Thursday 09:00 till Thursday 21:00 UTC: Dover mainly southwest 3-4, later increasing 4-5. showery rain. good. Thames mainly southwest 3-4, later increasing 4-5. showery rain. good, in precipitation possibly moderate. Humber Dogger variable, in the western part mainly south 2-4. showery rain. good, in precipitation possibly moderate. German Bight east to southeast 4-5, gradually cyclonic 4-6. showery rain. good, moderate to poor in precipitation. Forecast valid Thursday 21:00 till Friday 09:00 UTC: Dover southwest 4-5, increasing 5-6. showery rain. good. Thames southwest 5. showery rain. good. Humber mainly south 3-4, gradually southwest 4-5. showery rain. good, in precipitation possibly moderate. German Bight cyclonic 4-6, later southwest 4-5. showery rain. good, moderate to poor in precipitation. Dogger mainly south 3-4, later increasing 4-5. showery rain. good, in precipitation possibly moderate.