Day Skipper training module 13 of 17

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Meteorology

Shipping forecasts, Beaufort scale, weather systems, and broadcast meteorological information.

Shipping forecast terms and Beaufort scaleSources of broadcast meteorological information
3 outcomes for this module
  • Explain shipping forecasts, Beaufort scale, weather systems, and broadcast meteorological information.
  • Apply Shipping forecast terms and Beaufort scale to a realistic onboard situation.
  • Recall the core check: check the weather forecast BEFORE every passage.
Preview the onboard scenario

You are preparing a real trip where your understanding of shipping forecast terms and Beaufort scale shapes the decision. Use this module to explain the cue, the risk, and the next safe action before you move on.

6 lesson sections · 18 quiz questions · 12 flashcards

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Lesson summaries

Use this module hub to choose the right lesson, then open the dedicated lesson page for the complete explanation, worked examples, FAQs, and practice questions.

Weather and the Sailor

Weather is one of the most critical factors in safe seamanship. Wind strength and direction determine sailing conditions, sea state affects comfort and safety, and visibility impacts navi...

  • Check the weather forecast BEFORE every passage
  • Monitor conditions and forecasts throughout the passage
Read the full lesson: Weather and the Sailor

The Beaufort Scale

The Beaufort Scale describes wind force from 0 (calm) to 12 (hurricane). It links wind speed in knots to the conditions you can observe at sea, such as wave size, whitecaps, spray, and wh...

  • Force 0: Calm (< 1 knot), sea like a mirror
  • Force 3: Gentle breeze (7–10 kn), large wavelets
Read the full lesson: The Beaufort Scale

Shipping Forecast Terminology

The BBC Shipping Forecast covers 31 sea areas around the British Isles. It reports wind direction (the direction it blows FROM), wind speed (in Beaufort scale), weather (rain, fog, etc.),...

  • Veering = wind shifting clockwise
  • Backing = wind shifting anticlockwise
Read the full lesson: Shipping Forecast Terminology

Pressure Systems

High pressure (anticyclone) brings generally settled, fair weather with light winds. Wind circulates clockwise around a high in the northern hemisphere. Low pressure (depression or cyclon...

  • High pressure = fair weather, light winds, clockwise circulation (N hemisphere)
  • Low pressure = unsettled, windy, anticlockwise circulation (N hemisphere)
Read the full lesson: Pressure Systems

Fronts

A warm front marks the leading edge of warm air advancing over cold air. It brings a gradual deterioration: high cirrus cloud, then lower cloud, steady rain, poor visibility, and a rise i...

  • Warm front: gradual deterioration, steady rain, poor vis, temp rises, wind veers
  • Cold front: sharper change, heavy rain, squally, temp drops, vis improves after
Read the full lesson: Fronts

Sources of Weather Information

BBC Radio 4 currently carries the Shipping Forecast at 0048 and 0520 every day, with an additional 1754 broadcast at weekends. The Inshore Waters Forecast follows the early broadcasts at...

  • Shipping Forecast: currently 0048 and 0520 daily, plus 1754 at weekends; verify the schedule
  • Inshore Waters follows the early broadcasts at about 0055 and 0527; verify the schedule
Read the full lesson: Sources of Weather Information

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Authority cluster

Study this topic deliberately

Secure outcome
Turn forecast evidence into timing, route, sail-plan and contingency decisions.
Common mistake
Reciting forecast terms without explaining what would change on the passage.
Best next practice
For each forecast change, state the trigger, action and safer alternative.