ADM
Weather Theory: Earth & Sun
Thunderstorms
Weather Observations
Weather Analysis
100

This is a term for the systematic approach to the mental process used by pilots to consistently determine the best course of action in response to a given set of circumstances

Aeronautical Decision Making (ADM)

100

What is the root cause of all weather?

Uneven heating of the Earth's surface

100

These three ingredients form a thunderstorm

Moisture

Lifting action

Instability

100

This textual observation is typically released hourly and includes components such as time, wind direction/speed, sky conditions, etc.

METAR

100

This fast moving front is indicated by a blue line on a surface analysis chart

Cold front

200

List the components of the "IMSAFE" acronym

Illness

Medication

Stress

Alcohol

Fatigue

Eating/Emotion

200

What temperature and pressure change is the standard lapse rate?

2 degrees C and 1" per 1,000 feet

200

A thunderstorm has three stages in its life cycle. What are they?

Cumulus

Mature

Dissipating 

200

Decode this METAR:

KMSN 150153Z 14007KT 10SM SCT100 BKN120 M01/M07 A3008 RMK AO2 SLP198 T10061067

KMSN airport, 15th day of the month at 1:53 zulu, wind 7kts at 140 degrees, 10 statue miles visibility, scattered clouds at 10,000', broken clouds at 12,000', temperature -1, dewpoint -7, altimeter 30.08

200

An elongated line of low pressure

Trough

300

Risk is measured by gauging the _______ and _______ of accident or loss from exposure to hazards

Probability and severity

300

Nitrogen, oxygen, and various trace gases make up our atmosphere. What is their percentage?

78% nitrogen, 21% oxygen, 1% other

300

This part of a thunderstorm's life cycle begins when precipitation starts to fall

Mature stage

300

This weather observation is reported by pilots in flight and transmitted via ATC

PIREP

300

The wind/temp data for 3,000' at KROA indicates "9900". What is the wind speed/direction?

Light & variable

400

Name the five hazardous attitudes (Hint: RAIIM)

Resignation

Anti-authority

Impulsivity

Invulnerability

Macho

400
Air movement is disrupted due to the Earth's rotation. This is known as...

Coriolis Force

400

The term for a sudden, drastic shift in wind speed and direction.

Wind shear

400

This weather observation is reported at any time when certain drastic weather shifting criteria is met

SPECI

400

The closer these are together, the stronger the pressure gradient force

Isobars
500

List the components of the "DECIDE" acronym

Detect

Estimate

Choose

Identify

Do

Evaluate

500

This type of fog is formed when wind moves warm, moist air over a cooler surface, cooling it to its dewpoint. (Hint: sea to land)

Advection fog

500

Water that remains in liquid form until splashing upon a surface is known as...

Supercooled water droplets

500

Decode this PIREP:

CGI UA/OV CGI225010/TM 1748/FL070/TP C172/TB MOD 070-030/RM ZME

Cape Girardeau, routine report. 10 miles southwest of CGI at 1748 zulu. 7,000 feet. Type of aircraft C172. Moderate turbulence from 7,000'-3,000'

500

The wind/temp data at KLGA at 39,000' indicates 730942. What is the wind speed, direction, and temperature?

230 degrees, 109kts, -42 degrees

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