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

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

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

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

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

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

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

B. Fog → drizzle → clearing → cold front

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

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

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