FAA Aircraft Dispatcher Practice Exam

What types of weather hazards are typically shown on low-level prog charts?

1. Visible satellite imagery

2. Flight paths of aircraft

3. Precipitation, icing, and turbulence

4. Temperature gradients

The correct answer is: Precipitation, icing, and turbulence

Low-level prog charts are essential tools used in aviation meteorology to forecast and depict weather conditions at lower altitudes, typically below 24,000 feet. The primary focus of these charts is to communicate critical weather hazards that can impact flight operations, particularly in the lower levels of the atmosphere where many aircraft operate during takeoff and landing phases. The correct answer highlights that low-level prog charts display key weather hazards such as precipitation, icing, and turbulence. Precipitation is crucial as it affects visibility and can lead to challenging flight conditions. Icing is another significant concern, particularly for aircraft flying in clouds or at certain temperatures where supercooled liquid water can freeze on aircraft surfaces, leading to dangerous aerodynamic changes. Turbulence can create unexpected and uncomfortable flying conditions, posing risks to both the aircraft and passengers. In contrast, visible satellite imagery provides a way to observe cloud cover and weather patterns but does not specifically convey hazard information. Tracking flight paths of aircraft is relevant for air traffic control and situational awareness rather than for meteorological insights on potential dangers. Temperature gradients show variations in temperature but do not specifically address weather hazards like those listed in the correct answer.