Reckoning / Weather
Room · wave 2
Weather
The scales sailors and observers use to put wind, sea and sky into numbers, with the codes of the World Meteorological Organization and the definitions of national weather services.
Beaufort scale
Wind force 0 to 12 with an animated sea drawn to scale.
State of the sea
The WMO sea-state code from calm to phenomenal.
Visibility
Fog, mist and haze, and the visibility terms of marine forecasts.
Weather symbols
The present-weather signs of the station model, from mist to thunderstorm.
Tropical cyclones
Where and when they form, what they are called, and how they are rated.