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It depends on if you mean heavy rain or light rain.

If you mean heavy rain then when a cold air mass rises over a warm air mas.

If you mean light rain then when a warm air mass rises over a warm air mass.

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13y ago

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Related Questions

Why do cold fronts push into warm front and go under the warm front?

Cold air is more dense than warm air and therefore heavier


What is heavier cold or warm air?

Cold air is heavier


Is cold air heavier than warm air?

False because warm air rises. The particles in cold air are moving more slowly and make cold air more dense than warm air.


When a cold front manages to take over a warm front it is called?

When a cold front overtakes a warm front, it is known as an occluded front. This occurs when the cold air behind the cold front catches up with the warm air ahead of the warm front, forcing the warm air upward.


What is a warm front and a cold front called?

warmer than a cold front and colder than a cold front


What happens when a warm front moves into a cold front?

When a warm front moves into a cold front, the warm air gradually rises over the denser cold air. This can lead to the formation of clouds and precipitation. The warm air displaces the cold air, leading to a gradual increase in temperature and humidity.


Does precipitation come before or after a warm front?

Not normally before a warm front, precipitation comes before and after a cold front. When you have warm air and a cold front comes through, you mix warm with cold and that brings precipitation.


Describe the four major types of fronts?

1) Warm front - warm air mass replacing a cold air mass at ground level. Typically shifts wind southeasterly to southwesterly. 2) Cold front - Cold air replacing warm air at ground level. Tyoically shifts southwesterly to northwesterly 3) Stationary front - Equal amount of energy between warm and cold air masses creating a "stalemate".


Is Warm air heavier or cold air?

Cold air is heavier than warm air because cold air has higher density. This is because the molecules in cold air are closer together, leading to a greater mass per unit volume compared to warm air.


What is an occlude front?

A cold front normally moves at twice the speed of a warm front. An occluded front forms when a cold front catches up with a warm front. Occluded fronts are of two types:1. Cold occlusion : If the airmass of the advancing cold front is colder than the cool airmass of the warm front, the advancing cold front undercuts and lifts both the warm and cool airmass of the warm front. The weather is initially warm front type but during the passage of front, showery weather of cold front occurs. This occlusion is common in summer. 2. Warm occlusion : When the airmass behind the advancing cold front is less colder (cool) than the cold airmass of the warm front ahead, the advancing cold front overrides the warm front ahead. The weather in such a case is similar to that of warm front. This type of occlusion occurs in winters and is less common.


What is an occlude?

A cold front normally moves at twice the speed of a warm front. An occluded front forms when a cold front catches up with a warm front. Occluded fronts are of two types:1. Cold occlusion : If the airmass of the advancing cold front is colder than the cool airmass of the warm front, the advancing cold front undercuts and lifts both the warm and cool airmass of the warm front. The weather is initially warm front type but during the passage of front, showery weather of cold front occurs. This occlusion is common in summer. 2. Warm occlusion : When the airmass behind the advancing cold front is less colder (cool) than the cold airmass of the warm front ahead, the advancing cold front overrides the warm front ahead. The weather in such a case is similar to that of warm front. This type of occlusion occurs in winters and is less common.


Which front moves through an area faster a cold front or a warm front?

a warm front moves faster then a cold front because it is less dense