What happens when large masses of warm air and cold air meet?
When huge air masses come together from different directions, air may be uplifted and cooled if there are differences in the temperature and humidity of the two air masses. Warm fronts occur when light, warm air meets cold air. The warm air rises gradually over the cold air as they meet.
What occurs when a cold air mass pushes under a warmer mass forcing the warm air up because it is less dense?
A cold front forms when a cold air mass pushes into a warmer air mass. Cold fronts can produce dramatic changes in the weather. As a cold front moves into an area, the heavier (more dense) cool air pushes under the lighter (less dense) warm air, causing it to rise up into the troposphere.
When a cold air mass quickly runs into a warm air mass and pushes the warm air up a?
cold front
There are four different fronts- Cold, Warm, Stationary, and Occluded. When a cold air mass meets a warm air mass, a cold front forms. The cold air wedges under and lifts the warm air upwards. Cold fronts can move fast, push the warm air up violently, and produce thunderstorms.
Does cold air push warm air up?
When a cold air mass takes the place of a warm air mass, there is a cold front (Figure below). The cold air mass is dense so it slides beneath the warm air mass and pushes it up. Along the cold front, the denser, cold air pushes up the warm air, causing the air pressure to decrease (Figure above).
Which is most often a result of a warm air mass moving over a cooler air mass?
When a warm air mass moves into an area of cooler air, the boundary between the air masses is called a warm front. The warmer, less-dense air slides up over the cooler, denser air in a wide, gentle slope. As the warm air cools, its relative humidity increases, and the water vapor condenses into clouds.
What happens when warm and cold air masses move?
The leading edge of a warm air mass advancing into a region occupied by a cold air mass is called a warm front. A cold front occurs when a cold air mass advances into a region occupied by a warm air mass. If the boundary between the cold and warm air masses doesn’t move, it is called a stationary front.
What’s the temperature of a warm air mass?
Good question! Unfortunately, the definition of “warm air mass” is a bit vague. It simply implies that the air is warmer than the surrounding air, and the surface that it is moving over. In general, I would define a “warm air mass” as one which is about 20 degrees warmer than the air surrounding it.
What happens to the air as a warm front approaches?
As the warm front approaches, there may be fog or increasing rainfall, and thunderstorms may form, as well. This is due to the (usually) higher humidity in the air of warm fronts compared to that of cold fronts.
How are oil and water different air masses?
Think of oil and water as two separate air masses. If oil represented the warm air mass and water represented the cold air mass, what would you see happen? A boundary would form between the oil and water, and the oil (warm air) would float above the water (cold air).