UA.III.B.K1d
KnowledgeWeather factors and their effects on performance.
Air masses and fronts
From the FAA library
- Chapter 3b: Effects of Weather on Small Unmanned Aircraft Performance › Mountain Flying
Fronts As air masses move out of their source regions, they come in contact with other air masses of different properties. The zone between two different air masses is a frontal zone or front. Across this zone, temperature, humidity ... mountainous terrain, gather as much preflight information as possible on cloud reports, wind direction, wind speed, and stability of air. Satellites often help locate mountain waves. Adequate information may not always be available, so remain alert for signposts…
- Glossary › Pilot’s Operating Handbook/Airplane Flight Manual
turbulence. Warm front. The boundary area formed when a warm air mass contacts and flows over a colder air mass. Warm fronts cause low ceilings and rain. Warning area. An area containing hazards to any aircraft not participating…
- Chapter 12: Weather Theory › Air Masses
same. However, generalized weather conditions are associated with a specific type of front that helps identify the front. Warm Front A warm front occurs when a warm mass of air advances and replaces a body of colder air. Warm fronts ... months, cumulonimbus clouds (thunderstorms) are likely to develop. Figure 12-23. North American air mass source regions. Figure 12-24. Common chart symbology to depict weather front location. Light to moderate precipitation is probable, usually in the form of rain…
- Chapter 12: Weather Theory › Air Masses › Flight Toward an Approaching Cold Front
Flight Toward an Approaching Cold Front Like warm fronts, not all cold…
- Chapter 12: Weather Theory › Air Masses › Fast-Moving Cold Front
During cold front passage, the visibility is poor with winds variable and…
- Chapter 12: Weather Theory › Air Masses › Flight Toward an Approaching Warm Front
Figure 12-25 depicts a warm front advancing eastward from St. Louis…