Describe frontal rainfall in a labelled diagram?

Frontal rainfall occurs when a warm air mass meets a cold air mass. The warm air rises over the cold air, cools, and condenses to form clouds and eventually precipitation. Here is a labelled diagram of frontal rainfall:

1. Warm air mass
2. Cold air mass
3. Frontal boundary
4. Warm air rises over cold air
5. Cooling and condensation
6. Cloud formation
7. Precipitation (rain, snow, sleet, etc.)

Frontal Rainfall

Definition: Rainfall that occurs due to the lifting of warm, moist air over a cold front.

Diagram of Frontal Rainfall:

[Image of a weather front with ascending warm air and descending cold air, and associated frontal rainfall]

Labels:

- Warm Front: A boundary between warm and cold air masses, where the warm air is advancing and lifting over the cold air.
- Cold Front: A boundary between warm and cold air masses, where the cold air is advancing and pushing under the warm air.
- Occluded Front: A front that forms when a cold front overtakes a warm front.
- Warm Air: The air ahead of the front, which is warmer and more moist than the cold air.
- Cold Air: The air behind the front, which is colder and denser than the warm air.
- Lifting: The process by which warm air is forced to rise over the cold air, leading to condensation and precipitation.
- Frontal Rainfall: The precipitation that results from the lifting of warm air over the cold front.

Mechanism:

As the warm air encounters the cold front, it is lifted over the denser cold air. This lifting causes the warm air to cool and condense, forming clouds and precipitation. The precipitation is typically steady and widespread.

Characteristics:

- Intensity: Frontal rainfall is usually moderate to heavy.
- Duration: Frontal rainfall can last for several hours or even days.
- Distribution: Frontal rainfall is often more intense near the warm front and gradually decreases towards the cold front.