RYA Day Skipper Meteorology & Passage Planning

Question 1

The Beaufort Scale Force 6 is described as a:

Accepted Answer

Strong breeze — 22–27 knots, large waves beginning to form

Answer

Near gale — 28–33 knots

Answer

Gale — 34–40 knots

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Fresh breeze — 17–21 knots

Question 2

In the UK, a shipping forecast uses the term 'imminent' for a gale warning. This means the gale is expected:

Accepted Answer

Within 6 hours

Answer

Within 12 hours

Answer

Within 24 hours

Answer

Has already started

Question 3

A rapidly deepening low pressure system (bomb cyclogenesis) is characterised by:

Accepted Answer

Central pressure falling by 24 mb or more in 24 hours — very dangerous rapidly worsening conditions

Answer

Gradual deterioration over several days

Answer

Fog forming ahead of the system

Answer

High pressure building behind it

Question 4

On a weather map, what does a cold front symbol (triangular teeth) indicate about the wind direction as it passes?

Accepted Answer

Wind backs (shifts anti-clockwise) ahead of the front, then veers (shifts clockwise) sharply after passage

Answer

Wind remains steady throughout front passage

Answer

Wind drops completely during front passage

Answer

Wind becomes southerly behind the front

Question 5

A skipper is planning a Channel crossing. The forecast shows a 'ridge of high pressure' between two lows. This provides:

Accepted Answer

A brief but often favourable weather window of light winds and possible fog

Answer

Prolonged stable conditions for days

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Severe thunderstorms

Answer

Gale force winds

Question 6

When planning a coastal passage, SOLAS V requires all mariners to:

Accepted Answer

Use all available weather information and plan the voyage before departure

Answer

Carry EPIRB on all vessels

Answer

File a float plan with the coastguard

Answer

Have a licensed radio operator