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Charter Pilot (Part 135) - Oral > Weather Review > Flashcards

Flashcards in Weather Review Deck (227)
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1

An abrupt change in wind speed or direction is a ______.

Wind Shear

2

Seven (7) characteristics of Microbursts are?

  1. Wind intensify for about 5 minutes after ground contact
  2. Dissipates from 10-20 minutes after ground contact
  3. Spreads in all directions after ground contact in a violent horizontal vortex
  4. Can occur in both wet and dry atmospheres 
  5. Can occur in families (there maybe more than one)
  6. Can have a horizontal wind speed difference of 50 - 100 kts
  7. Can have vertical speeds in excess of 3,000 fpm

3

Three Windshear Recover steps are?

 

  1. Max power
  2. Pitch up to stick shaker/stall warning (max performance)
  3. Do not change configurations

4

Ice can be found in what two conditions?

  1. Visible moisture
  2. +50 to -200C
    • Usually +2 to -100C

5

Geographically, the worst icing conditions can be found where?

  • Downwind of mountainous terrain
    • Adiabatic cooling created lifting action
  • Downwind of the Great Lakes region
    • Large amounts of moisture

6

FAA defines "Known Icing Conditions" as...

Atmospheric conditions in which the formation of ice is observed or detected in flight.

7

FAA defines "Forecast Icing Conditions" as...

Environmental conditions expected by a National Weather Service or an FAA-approved weather provider to be conducive to the formation of inflight icing on aircraft.

8

Six (6) Rime Ice Characteristics are...

  1. Small supercooled water droplets that freeze on contact
  2. Most common form of ice
  3. Milky or opaque in appearance (air bubbles)
  4. Often found in Stratus clouds and smooth air
  5. Relatively brittle
  6. Usually limited to a 3,000' vertical area

9

Characteristics of Clear Ice are...

  1. A collection of large, close to freezing water droplets that will flow back on the wing before freezing
  2. Clear, hard, glossy, heavy and very difficult to remove

10

What does Freezing Rain indicate?

Warmer temperatures above 

Therefore, climb if able to warmer temperatures

11

What do Ice Pellets indicate?

Freeing rain at higher altitudes.

12

Trace Ice is...

Barely perceptible, rate of accumulation is slightly greater than sublimation.

13

Light Ice is...

May be a problem if the flight is prolonged (over 1 hour), occasional use of deice/anti-ice removes accumulation.

Does not present a problem if deice/anti-ice equipment is used.

14

Moderate Ice is...

Short encounters become potentially hazardous, use of deice/anti-ice or flight diversion is necessary.

15

Severe Ice is...

The rate of accumulation is such that deice/anti-ice equipment fails to reduce or control the hazard.  Immediate flight diversion is necessary.

16

Any runway that is not dry is considered to be ______

wet

17

A dry runway has _______

no visible moisture, to include:

  • standing water
  • ice
  • snow
  • slush
  • or frost of any form

18

Land And Hold Short Operations (LAHSO) not authorized on ______________ runways.

wet

19

Braking action reports are:

  1. Good
  2. Goot to Medium
  3. Medium
  4. medium to Poor
  5. Poor
  6. Nil*

*Note: you should never hear "NIL" -- the airfield would be closed!

20

The Jet Stream is normally found...

near the upper limit of the troposphere.

21

Troposphere is...

  • from the surface to ~65,000 feet at the Equater
    • ~20,000 feet at the poles
  • decreasing temperature with height
  • water vapor (weather)

22

Tropopause is...

Boundary layer between the Troposphere and the Stratosphere

23

Magnitude of wind shear is greater on the ____ side of the Jet Stream.

Polar

24

AWOS is...

Automated Weather Observing System

25

AWOS-A

Only reports altimeter

26

AWOS-1 

  • Altimeter
  • Wind
  • Temperature
  • Dew point
  • Density Altitude

27

AWOS-2 

  • Altimeter
  • Wind
  • Temperature
  • Dew point
  • Density Altitude
  • Visibility

28

AWOS-3

  • Altimeter
  • Wind
  • Temperature
  • Dew point
  • Density Altitude
  • Visibility
  • Cloud/Ceiling

29

AWOS-3 P

  • Altimeter
  • Wind
  • Temperature
  • Dew point
  • Density Altitude
  • Visibility
  • Cloud/Ceiling
  • Precipitation

30

AWOS-3 T

  • Altimeter
  • Wind
  • Temperature
  • Dew point
  • Density Altitude
  • Visibility
  • Cloud/Ceiling
  • Thunderstorm