Fronts
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The document describes different types of fronts: a cold front occurs when cold air advances, displacing warm air and pushing it up. A warm front happens when warm air moves forward over colder air. An occluded front is formed when a fast cold front catches a slower warm front. The last type is a stationary front where the front has little movement and winds blow parallel to it, bringing potential rain or ice depending on the air masses.
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Fronts
- 1. A cold front with cold air advancing to displace warm air. The warm air is pushed up over the cold air.
- 2. A warm front. Warm air moves forward to take over the position of colder air.
- 3. Occluded fronts are produced when a fast moving cold front catches and overtakes a slower moving warm front.
- 4. • Along some stationary fronts, the weather is clear to partly cloudy. • If both of the air masses are relatively dry, then no precipitation will fall. • However, in some stationary fronts where there is a lot of water vapor in the warmer air mass, significant rain or freezing rain can occur. • Some of the worst ice storms and flooding in the Southeast occur in these conditions because rain falls continuously over an area for several days as the front stays in one place. A stationary front. The front has little or no movement and winds are nearly parallel to the front.