It's heavier. Warming gases makes them less dense. That is why hot air balloons work.
A cold front forms when a cold air mass advances and replaces a warmer air mass. As the cold air moves into an area previously occupied by warm air, it pushes the warm air upward, creating instability and potentially leading to the development of thunderstorms and other severe weather.
a cold front forms by cold air mass pushes under a warm air mass
Warm air naturally goes up/rises and cold air has to make a current where it can go until it reaches a warm current which is under the warm air.
Yes, that process is known as a cold front. Cold air is denser than warm air, so when a cold air mass moves in, it wedges under the warmer air, causing the warm air to rise and create weather changes like thunderstorms and cooler temperatures.
Warm air is less dense (lighter) than cold air..that is why warm air rises and cold air settles
Cold air is denser thus heavier.
There is really nothing interesting about cold fronts. Cold air is overtaking warm air. Since cold air is denser than warm air, cold air goes under a warm air mass.
The cold air pushes under the warm air.
Cold air is denser than warm air. Which allows it to slide under that warm air and displace it.
Cold air is denser than warm air, so it sinks below warm air due to gravity. This sinking motion causes cold air to flow under warm air, leading to the familiar pattern of cold air near the ground and warm air above it.
a cold front
A cold air mass comes in under a warm air mass.
Cold air is more dense than warm air and therefore heavier
A cold front forms when a cold air mass advances and replaces a warmer air mass. As the cold air moves into an area previously occupied by warm air, it pushes the warm air upward, creating instability and potentially leading to the development of thunderstorms and other severe weather.
A warm air mass rises over a cold air mass at a warm front because warm air is less dense than cold air. This results in the warm air mass being forced to rise and cool, leading to the formation of clouds and precipitation at the boundary of the two air masses.
The front you are referring to is called a cold front. Cold air is denser than warm air, so when a mass of cold air moves underneath warm, moist air, it lifts the warm air rapidly, leading to the formation of clouds and potentially precipitation.
A warm air mass advancing under a cold air mass is called an occluded front. This occurs when a fast-moving cold front catches up to a slow-moving warm front, lifting the warm air off the ground. The mixing of air masses can lead to cloud formation and precipitation.