Aviation Basics
Weather Hazards
Weather
100

This term refers to the state of the atmosphere and is inseparable from flying.

What is weather?

100

These three aspects of flight are most affected by weather.

What are visibility, comfort, and safety?

100

All weather on Earth is driven by this source of energy.

What is the sun?

200

These two sets of rules govern flight based on visibility and instruments.

What are VFR (Visual Flight Rules) and IFR (Instrument Flight Rules)?

200

 This type of storm can produce turbulence severe enough to break up an aircraft.

What is a thunderstorm?

200

These two factors, along with proximity to water or mountains, influence local weather patterns.

What are atmospheric pressure and heat exchange?

300

 This old aviation saying warns pilots against taking unnecessary risks: “It’s better to be on the ground wishing you were in the air, than in the air wishing you were on the ground.” What does it mean?

What is “It’s better to be safe than sorry”?

300

This frozen precipitation can form on aircraft surfaces and lead to loss of control.

What is ice (icing)?

300

Air rises in this type of pressure system, leading to clouds and precipitation.

What is a low-pressure system?

400

This is the minimum ceiling and visibility generally considered VFR.

What is 1,000 feet ceiling and 3 miles visibility?

400

These atmospheric conditions can reduce visibility and force pilots to rely on instruments.

What are clouds, haze, or smoke?

400

Air descends in this type of pressure system, creating stable conditions and fair weather.

What is a high-pressure system?

500

These are the minimum weather conditions required for Low IFR operations.  

What is a ceiling below 500 feet and/or visibility less than 1 mile?

500

This phenomenon can be both good and bad: it can speed up a flight or slow it down depending on direction.

What is wind (tailwind or headwind)?

500

Aircraft weather radar detects this type of atmospheric feature most effectively.

What is precipitation (moisture)?

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