Its variation from the accepted average (mean sea level pressure)
14.696 PSI / 101.325kPa
A fluid will move from high pressure to low pressure.
When low pressure is replaced by high pressure, air flows from the high pressure area to the low pressure area. This movement of air causes winds to form as the atmosphere seeks to achieve equilibrium. The change in pressure can also lead to changes in weather conditions, with high pressure typically associated with fair weather and low pressure with unsettled conditions.
The difference is that Low air pressure has less air molecules pushing down in one area and high air pressure has more air molecules pushing down in one area.
Winds blow out of areas of high pressure and into areas of low pressure. This movement is due to the difference in air pressure, with air always moving from high to low pressure to try to equalize the pressure.
Air rises in a low-pressure area. In low-pressure systems, the atmospheric pressure is lower than the surrounding areas, causing air to converge and rise as it warms. Conversely, in high-pressure areas, air is denser and tends to sink, leading to stable weather conditions.
Low pressure
Air.
Winds are typically stronger near a low pressure area because air flows from high pressure to low pressure, creating faster wind speeds. In contrast, near a high pressure area, the air is descending and spreading out, resulting in lighter winds.
Diffusion occurs when an area of high pressure meets an area of low pressure. They mix together and create an equilibrium, all particles spread out equally.
Air mass - refers to any area of high or low pressure. A front - is the point at which an area of high pressure meets an area of low pressure.
Air.
low
high pressure most likely
an area of high pressure to an area of low pressure. This movement occurs naturally as the atmosphere seeks to equalize pressure imbalances. The flow of air from high to low pressure is what creates our wind patterns.
Air mass - refers to any area of high or low pressure. A front - is the point at which an area of high pressure meets an area of low pressure.
Wind
High pressure means there is going to be rain in that area. Low means the opposite.