Between this latter date and November 11, sailing was thought uncertain, and from November 11 through March 10, the sea was considered closed to general navigation.
Viimati mainitud kuupäevast kuni 11. novembrini oli meresõit riskantne ja ajavahemikus 11. novembrist kuni 10. märtsini peeti meritsi liiklemist äärmiselt ohtlikuks.