When does a sea breeze typically develop and in what direction does it blow?

A. At dawn — the sea breeze is strongest in the first two hours of daylight

B. Sea breezes occur only in the tropics and are not relevant to UK sailing

C. Afternoon, when land heats faster than the sea — air rises over land, sea breeze flows onshore (from sea to land)

D. At night, when the sea is warmer than the land — offshore wind develops

A. 17–21 knots; fresh breeze; moderate waves, many white horses

B. 28–33 knots; near gale; sea heaps up, streaks of foam

C. 34–40 knots; gale; moderately high waves of greater length

D. 22–27 knots; strong breeze; large waves begin to form, white foam crests extensive

A. Cirrus cloud → thickening alto/stratus → steady rain → clearing → warmer, humid, possibly foggy conditions in the warm sector

B. Fog → drizzle → clearing → cold front

C. Cumulus builds → heavy showers → rapid clearance → cold and clear

D. Wind backs sharply, brief squall, then long clear period

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