What is a Front? Boundaries between contrasting air masses.
Low pressure system involved.
3 Types of Front:
- Cold Front: cold air replaces warm air, temperature goes down, air pressure drops, cumulonimbus clouds are created by warm air rising and there is heavy rain for a relatively short period of time - tornadoes can form in extreme conditions.
- Warm Front: warm air replaces cold air, temperature rises and may be some light rain for a relatively long period of time which will clear up into really nice weather.
- Occluded Front: cold front catches up with a warm front and usually some precipitation.
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