Cold Front
What is cold front?
A cold front is the leading edge of an advancing mass of cold, dense, stable air that pushes into and replaces warmer air. Because the cold air wedges steeply beneath the warm, moist air ahead of it, it forces that warm air to rise quickly—often producing thunderstorms that line up along the front. Think of it as a steep, fast-moving wall of cold air that can shove warm air upward and trigger a line of stormy weather.
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