Not sure what to flair this as, so I just put it as ‘other’
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A warm front is a mass of warm air flowing into a region of cold air.
A cold front is a mass of cold air flowing into a region of warm air.
A stationary front is two masses of warm and cold air sitting next to each other and not moving.
Fronts move in the direction they are pointing, ie it moves towards the semicircles on a warm front or towards the triangles on a cold front. Stationary fronts point both ways since they don’t move, but will indicate the side that the warm/cold air is on.
Fronts generally circle around a high or low pressure system. In the northern hemisphere, high pressure rotates clockwise and low pressure rotates counterclockwise. The reverse is true for the southern hemisphere.
Warm fronts move faster than cold fronts, so it can catch up to a cold front going around the same pressure system and overlap. This is an occluded front. This causes all of the hot air behind the warm front to be lifted up into the air very fast to cool down and lose its moisture in very heavy rainfall.
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