Question

Why do we experience cool breeze before rainfall

Answer 1

Watch the wind come roaring in off the water: The cool breeze comes from the downdraft of cooler air aloft that gets pushed down as the rain comes down, then spreads out as it hits the ground. ... And then after the wind starts, so does the rapid cooling.

Answer 2

The Answer is:

The thunderstorm clouds feature a downdraft, a downward wind from the top of the cloud to the surface, it grows colder and windier before thunderstorms.

The downdraft begins as a result of heavy rain falling through the cloud, but it becomes partially detached from the rain area and blows down and forth from the thunderstorm in all directions.

Because this wind is blowing from the top of the cloud, it carries some of the cooler air down with it.

• Breezes are caused by temperature changes in the air. Warm air rises, leaving low pressure near the ground behind.
• Cold air generates high pressure and sinks to compensate; wind then flows from high pressure places to low pressure areas in an attempt to equalise pressures.
• Temperature differences affect the strength of breezes; the bigger the difference, the stronger the breeze.
• Sea breezes are winds that blow in from the ocean and blow inward toward land. Sea breezes occur throughout the day when the air over land is warm and low pressure, while the air over sea is cold and high pressure.
• The air over water is warmer at night than the air over land because land loses heat fast while water takes much longer to cool down.
• As a result, pressures over land and water are reversed from what they are during the day; pressure over land is high, while pressure over water is low.
• The slight temperature difference between the land and the ocean causes a breeze that blows from the land to the sea.

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