Marine Weather
Marine Weather
Read the sky, follow a front and practise the weather decisions that matter before leaving harbour.
Beaufort scale in 3D
Explore forces 0–12, wind speeds and sea clues in an interactive coastal scene.
Clouds
Recognise the ten cloud genera and the signs they give a sailor.
Open labFronts
Follow warm, cold, occluded and stationary fronts past a vessel.
Open labWeather charts
Explore pressure, wind, fronts and a planned route on a synthetic chart.
Open labFree weather and ocean lessons
Meteorology
Clouds, humidity and dew point
Fog and visibility at sea
Getting a marine forecast: sources, terms and timing
GRIB files and weather models: use and limits
Local winds: sea breezes, katabatic winds, gusts and named winds
Weather observations and reports from ships
Global winds, ocean weather and sea ice
Forecasting on board: barometer, sky and sea
Pressure, air masses, depressions and fronts
Squalls, thunderstorms and waterspouts
Reading a synoptic chart: isobars, wind and the coming weather
Tropical revolving storms: seasons, signs and avoidance
Weather routeing and heavy-weather voyage planning
