The difference in temperature can indicate the 'strength' of a front. It can be thought of like the frontline in a battle, where the warm air represents one side and its 'enemy,' the cold air, the other side.Īcross a front, there can be large variations in temperature, as warm air comes into contact with cooler air. What is a weather front?Ī weather front is a boundary between two air masses. These differences produce a reaction (often a band of rain) in a zone known as a front. For example, one air mass may be cold and dry and the other air mass may be relatively warm and moist. Weather fronts mark the boundary between two different air masses, which often have contrasting properties.
There is also the added complication that air is often dry if it has come from a large continent, or holds a lot of moisture if it has come across an ocean. For example, air from the north is usually colder, and there is usually a sharp boundary where this meets the warmer air from the south (rather than a gradual increase in temperature). The air around the globe has different properties.
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