warm front
Definition
Noun: 1. A meteorological boundary: A warm front is the leading edge of an advancing mass of warmer air that is displacing a retreating, cooler air mass. It is characterized by a gradual slope, which typically leads to a prolonged period of cloudiness and precipitation over a broad area.
Usage
- As a subject: A warm front is often associated with steady rain.
- As an object: Meteorologists are tracking the warm front moving in from the south.
- With prepositions: The weather will change the warm front. Clouds form the warm front.
Examples
Advanced Usage
- In technical/scientific contexts: "The model shows the warm front occluding as it interacts with the faster-moving cold front."
- In weather reports: "Expect increasing clouds and showers ahead of the warm front, with clearing conditions following its passage."
Variants and Related Words
- Cold front (noun): The leading edge of an advancing mass of colder air.
- Stationary front (noun): A boundary between air masses that is not moving.
- Occluded front (noun): A composite front formed when a cold front overtakes a warm front.
- Frontal boundary (noun): A general term for the interface between two different air masses.
Synonyms
- Advancing warm air mass (noun phrase): A more descriptive synonym.
- Thermal front (noun): A less common technical term.
Related Phrases
- Frontal passage (noun phrase): The movement of a front (like a warm front) over a specific location.
- Warm sector (noun phrase): The region of warm air between a warm front and the subsequent cold front in a cyclone system.
Noun
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the front of an advancing mass of warmer air
