Microlight » Meteorology » Local Winds
The development of a sea breeze
The Sea Breeze is a cool, moist breeze that blows onshore during the day.
- The land heats up faster than the sea causing the air above the land to rise.
- This creates a low pressure above the land due to the decreased density.
- High pressure air from the sea moves inland to replace the low pressure above the land.
(a) horizontal and vertical limits around New Zealand;
- Sea breezes can travel inland as far as 25 – 40 km and have a vertical extent of approximately 2000 – 3000 ft.
(b) timing of the occurrence;
- Starts late morning around 10am and reaches maximum mid afternoon between 2pm and 4pm. Dies out early evening.
(c) average strength of the sea breeze;
- Sea breezes are strongest in the summer with clear skies and average around 10 – 15 knots in strength.
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