A107 Weather

Question 1

Is a METAR an observation or a forecast?

Answer 1

Observation

Question 2

Is a TAF an observation or a forecast?

Answer 2

Forecast

Question 3

Information for a routine METAR is observed between __ minutes after the hour until ___.

Answer 3

45

The top of the hour

Question 4

A routine METAR is reported between __ minutes after the hour and __

Answer 4

50

The top of the hour

Question 5

A METAR provides weather information for a specific airfield out to __ statute miles

Answer 5

5

Question 6

Are winds on a METAR measured in True or Magnetic?

Answer 6

True

Question 7

An observation reported in a METAR as VC means ___ and is measured to be ___

Answer 7

Vicinity

Between 5 and 10 statute miles from the reporting station

Question 8

An observation reported in a METAR as DSNT means ___ and is measured to be ___

Answer 8

Distant

Beyond 10 statute miles from the reporting station

Question 9

A TAF is defined as ___

Answer 9

A concise statement of the expected meteorological conditions for a 5 statute mile radius around an airport during a specified time period (usually 24 hrs)

Question 10

TAFs are prepared and filed approximately ___ prior to scheduled issuance times

Answer 10

One-half hour

Question 11

A “FM” group is used in a TAF when…

Answer 11

A rapid change is expected, usually occurring in less than one hour

Question 12

A “BECM” group is used in a TAF when…

Answer 12

A gradual change in conditions is expected over a longer time period, usually two or more hours

Question 13

A “TEMPO” group is used in a TAF when…

Answer 13

Any conditions in wind, visibility, weather, or sky condition which are expected to last for generally less than an hour at a time.

Question 14

Define Wind Shear

Answer 14

A sudden, drastic change in wind speed and/or direction over a very small area

Question 15

A critical type of wind shear associated with convective precipitation from a thunderstorm is known as a

Answer 15

Microburst

Question 16

A microburst typically has a horizontal diameter of __, __ minute lifespan, and downdrafts up to ___ fpm

Answer 16

1-2 miles
15 minutes
6000 fpm

Question 17

Sky Clear, or SKC means how much of the sky is obscured due to clouds?

Answer 17

0/8

Question 18

Few Clouds, or FEW means how much of the sky is obscured due to clouds?

Answer 18

1/8 - 2/8

Question 19

Scattered Clouds, or SCT means how much of the sky is obscured due to clouds?

Answer 19

3/8 - 4/8

Question 20

Broken Clouds, or BKN means how much of the sky is obscured due to clouds?

Answer 20

5/8 - 7/8

Question 21

Overcast, or OVC means how much of the sky is obscured due to clouds?

Answer 21

8/8

Question 22

In a TAF, the letters BR mean…?

Answer 22

Mist

Question 23

In a TAF, the letters FG mean…?

Answer 23

Fog

Question 24

In a TAF, the letters FU mean…?

Answer 24

Smoke

Question 25

In a TAF, the letters DU mean…?

Answer 25

Dust

Question 26

In a TAF, the letters SA mean…?

Answer 26

Sand

Question 27

In a TAF, the letters HZ mean…?

Answer 27

Haze

Question 28

In a TAF, the letters PY mean…?

Answer 28

Spray

Question 29

In a TAF, the letters VA mean…?

Answer 29

Volcanic Ash

Question 30

In a TAF, the letters TS mean…?

Answer 30

Thunderstorms

Question 31

In a TAF, the letters SH mean…?

Answer 31

Showers

Question 32

In a TAF, the letters RA mean…?

Answer 32

Rain

Question 33

In a TAF, the letters SN mean…?

Answer 33

Snow

Question 34

In a TAF, the letters GR mean…?

Answer 34

Hail

Question 35

In a TAF, the letters FC mean…?

Answer 35

Funnel Cloud

Question 36

In a TAF, the letters WS mean…?

Answer 36

Wind Shear

Question 37

Draw the wind triangle

Magnitudes and directions of airspeed/wind speed

Answer 37