Bridge

Deck Logbook Reference: Wind, Sea, and Weather Conditions

Deck Logbook Reference: Wind, Sea, and Weather Condition CodesIntroductionDeck logbooks require standardized meteorological observations for safety and reporting. The tables below compile the practical codes used for wind, sea state, visibility, sky condition, and wind direction.Wind Force – The Beaufort ScaleForceNameKnotsSea Condition0Calm<1Sea like a mirror1Light Air1–3Ripples, no foam2Light Breeze4–6Small wavelets3Gentle Breeze7–10Large wavelets4Moderate Breeze11–16Small waves, whitecaps5Fresh Breeze17–21Mod...