Met Practical

Question 1

Winds are shown on the GFA (Clouds & Weather) charts whenever they are forecasted to be ___kts or greater and visibility is shown when it’s forcasted to be ___sm or less.

Answer 1

20kts, 6sm

Question 2

A dashed line enclosing an area of diagonal lines on a clouds and weather GFA chart represents…

Answer 2

showery precip

Question 3

A scalloped border encloses organized areas of clouds, where the sky condition is either…

Answer 3

broken (BKN) or overcast (OVC).​

Question 4

On a GFA, how would you decode the following IFR outlook:

IFR CIG/VIS SN/BR/FG OVR NRN NF

Answer 4

IFR conditions, due to Ceilings/Visibility due to Snow/Mist/Fog Over Northern Newfoundland.

Question 5

What are SIGMETS?

Answer 5

Weather warnings

• valid for 4hrs
• reporting hazardous flight conditions
• such as severe thunderstorms, icing, and turbulence

Question 6

Aerodrome forecasts provide wind, visibility, weather and cloud heights that relate to flight ops within ___nm of the airport.

Answer 6

5nm

Question 7

If TEMPO or PROB are included in the aerodrome forecast, can the airport be used as an alternate?

Answer 7

yes, but only if the TEMPO is not below your alternate minima and the PROB is not below the landing minima

Question 8

What does the following line mean in a METAR?

R36/1000V2400FT/D

Answer 8

Runway 36 RVR between 1000’ and 2400’. Trent is downward.

Question 9

A surface weather map shows conditions __ to __ hours before the map was issued.

Answer 9

2 to 3 hours

Question 10

A surface weather chart show surface pressure patterns up to ___ ft.

Answer 10

3000ft

Question 11

Review weather symbols

Answer 11

Question 12

Name that front symbol?

Answer 12

Stationary frontolysis

(dashed lines between is frontolysis)

Question 13

Name that front symbol?

Answer 13

Stationary front

Question 14

Review these crazy pink symbols.

Answer 14

Question 15

What are these two?

Answer 15

Trowel (top)

Ridge (bottom)

Question 16

Review frontogenesis symbols, which have spaces between the symbols.

Answer 16

Question 17

Name those front symbols?

Answer 17

Occluded front

Occluded frontolysis

Question 18

Fronts and pressure centres depicted on P SIG WIX charts represent…

Answer 18

their surface positions at the validity time of the chart.

Question 19

The term OCNL CB on a SIG chart means?

Answer 19

Embedded thunderstorms that are well seperated.

Question 20

Name that symbol?

Answer 20

intermittent snow

Question 21

Name that symbol?

Answer 21

Freezing drizzle, thunderstroms

Question 22

Surface winds are not included in GFA when they are expected tom be less than ___.

Answer 22

20kts

Question 23

SIGMETS can be received from ___ and are valid for ___ hours.

Answer 23

FSS, 4

Question 24

Answer 24

The freezing level at 10,000’

Isotherm = a line on a map connecting points having the same temperature at a given time or on average over a given period.

Question 25

What does "FRQ CB" mean?

Answer 25

thunderstorms with little or no separation

Question 26

The term CB forecast for an area also automatically implies ___ even if those symbols are not used.

Answer 26

moderate or severe turbulence and icing

Question 27

Upper wind (FDs) forecast state wind speed in ___ to the nearest ___ ° True.

Answer 27

Knots, 10°T

Question 28

Decode the following upper winds ## Footnote **FL240 740538**

Answer 28

* Add 50 to first two digits * Add 100 to second two digits * Last two digits are temp (minus is always assumed) * 74 - 50 = 24 \> 240° True * 05 + 100 = 105 \> 105kts * 38 = -38°C

Question 29

Upper Level Prog Charts are prepared for FL240, FL340 and FL450. They are issued ___ times a day and ___ hours before the validity times of 00Z, 06Z, 12Z, 18Z.

Answer 29

4 times | 12hrs

Question 30

Clear Air Turbulence (CAT) associated with jet streams occurs when... (3 items)

Answer 30

* jet stream winds exceed 110kts * significant curve or bend, especially around a deep pressure trough * the jet stream passes just north of a surface frontal wave

Question 31

A forcasted area of turbulence implies a \_\_\_% probability of encountering turbulence in that area.

Answer 31

50%

Question 32

Jet streams are depicted on SIG WIX charts when their core speeds are forecast to attain \_\_\_kts or more

Answer 32

80