High pressure & Low pressure Flashcards
What is high pressure?
High pressure is when cool air descends as it is denser.
What does high pressure in summer lead to?
clear skies hot days and cool evenings.
What does high pressure in winter lead to?
Clear skies, bright days and freezing evenings.
What is low pressure?
When warm air rises as it is less dense.
What does low pressure in summer lead to?
Rainfall that lasts long, storms and flooding
What does low pressure in Winter lead to?
stormy and wintry weather conditions.
What’s the difference between high and low pressure?
A low-pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. … A high-pressure system has higher pressure at its centre than the areas around it. Winds blow away from high pressure.
