IF air over the warmer area rises..?

Question

creating a lower atmospheric pressure, how would surrounding air move?

How does this factor cause cooling sea breezes on a sunny day on a coastal beach? and How does this relate to large-scale atmospheric pressure?

Answer 1

Air temperature is only one factor, humidity is another significant factor. Contrary to what you might think, humidity makes air less dense. This is because water molecules take up more space than N2 and O2. This is why we have clear sky when barometric pressure is high and rain, snow, and storms when barometric pressure is low. A "sea breeze" blows when there is a pressure difference between the land and the water. The rising air (less dense) pulls air from near the ground towards it. Sometimes an inversion layer forms when cold dry air is above warm humid air. Thunderstorm cells form when local conditions cause columns of humid (less dense) air to start rising up through cooler air. The moisture begins to condense out creating clouds and precipitation.