Alfredo Contaldovideo
DIY WEATHER on a sailboat⛵ how to forecast the weather yourself on a boat using a barometer ⛵🌊
8 de agosto de 2024 · 23 min · 21K vistas
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Predicting weather in the Mediterranean requires integrating barometric trends with local orographic knowledge, as the region’s complex coastline and mountainous terrain frequently disrupt predictable weather patterns. Sailors should monitor a barometer, thermometer, and hygrometer simultaneously, recording readings every six hours in a logbook to establish a baseline.2:31 A stable trend—characterized by a daily sinusoidal pressure fluctuation—suggests fair weather, while a rapid drop in pressure paired with rising temperature and humidity often precedes a storm.4:42 Because the Mediterranean is enclosed, local topography significantly alters wind behavior; for example, winds crossing high ridges like the Sorrento Peninsula can create sudden, intense katabatic gusts on the leeward side.15:22 Similarly, islands like Ischia or Capri can accelerate wind speeds by up to 150% along their flanks while creating wind shadows downwind.20:01 Beyond instrument readings, sailors must observe cloud formations, such as cirrus clouds indicating an approaching front or cumulonimbus clouds signaling thunderstorms, and cross-reference these observations with VHF Meteomar bulletins and synoptic charts.7:15
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