What does the warning of strong winds at sea mean?

Early warning of strong winds at sea refers to the early warning information issued by the marine meteorological department in advance to predict the imminent or imminent occurrence of severe weather with winds above 7 in this sea area based on meteorological forecast data and analysis and judgment. This is done to ensure the safety of people and ships at sea and prevent serious shipwrecks. Once receiving the early warning notice, the ship should immediately berth or take shelter from the wind, and shall not venture out to sea.