From the course: Cert Prep FAA 107 Commercial Drone License
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Air masses and fronts
From the course: Cert Prep FAA 107 Commercial Drone License
Air masses and fronts
- [Narrator] An air mass is a body of air with horizontally uniform temperature, humidity and pressure. They take on the characteristics of the surrounding area or source region. A front is when a moving air mass encounters another air mass with different characteristics. The boundary layer between the two is known as a front. There are different types of fronts, warm, cold, stationary, and occluded. A warm front happens when a warm mass of air advances and replaces a body of colder air. Warm fronts move slowly, typically 10 to 25 miles per hour. During the passage of a warm front, visibility is generally poor, but improves with variable winds. The temperature rises steadily. The wind blows from the south southwest. A cold front occurs when a mass of cold, dense, and stable air advances and replaces a body of warmer air. Cold fronts move more rapidly than warm fronts, progressing at a rate of 25 to 30 miles per hour. As…
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