Aviation Weather

A stable air mass is most likely to have which characteristic?

• Showery precipitation

• Turbulent air

• Poor surface visibility

What are characteristics of a moist unstable air mass?

• Turbulence and showery precipitation

• Poor visibility and smooth air

• Haze and smoke

What are characteristics of stable air?

• Good visibility and steady precipitation

• Poor visibility and steady precipitation

• Poor visibility and intermittent precipitation

What measurement can be used to determine the stability of the atmosphere?

• Atmospheric Pressure

• Actual lapse rate

• Surface temperature

What would decrease the stability of an air mass?

• Warming from below

• Cooling from below

• Decrease in water vapor

Upon your preflight evaluation of weather, the forecasts you reference state there is an unstable air mass approaching your location. Which would not be a concern for your impending operation?

• Thunderstorms

• Stratiform clouds

• Turbulent conditions

The zone between different temperature, humidity, and wind is called

• A front

• An air mass.

• Wind shear.

What weather provides the best flying conditions?

• Warm, moist air.

• Cool, dry air.

• Turbulence.

Which type of weather phenomenon that may concern a remote pilot is common among cold fronts?

• Long-term periods of reduced visibility.

• Long periods of steady precipitation.

• Thunderstorms and heavy rain.

One weather phenomenon which will always occur when flying across a front is a change in the

• wind direction.

• type of precipitation.

• stability of the air mass.