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Part 135 Training > METAR and TAF > Flashcards

METAR and TAF Flashcards

1
Q

Hourly weather observation reports are provided in what format?

A

METAR

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2
Q

When is a SPECI issued?

A

When conditions significantly change.

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3
Q

Under which of the following conditions would a SPECI report be issued?

A

The ceiling forms below 1,000 feet.

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4
Q

Which report provides forecasted weather conditions at an airport for a specified period of time?

A

TAF

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5
Q

The date/time group for a METAR or SPECI report is appended with what letter and why?

A

“Z” to denote Coordinated Universal Time.

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6
Q

How can you tell if a METAR or SPECI report is a corrected report?

A

It includes the modifier COR.

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7
Q

When a METAR or SPECI report is automated and does not have human augmentation, what code is present in the body of the report?

A

AUTO.

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8
Q

The first set of weather information provided in a METAR or SPECI is?

A

Wind.

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9
Q

The final element of a METAR/SPECI report is the:

A

Remarks.

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10
Q

Although the METAR code is adopted worldwide, can a country choose to use a different code?

A

Yes. Each country is allowed to make modifications or exceptions to the code for their particular country.

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11
Q

If RVR is not observed, what is provided in its place in the METAR report?

A

The group and preceding space is omitted.

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12
Q

Following the date and time of the report, and the modifier if required, wind information is provided as a five digit group. The first group provides:

A

Three digits for wind direction, in tens of degrees.

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13
Q

Which of the following demonstrates a wind speed over 99 knots according to U.S. standards?

A

140102KT.

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14
Q

You look up the current METAR and the wind group is reported as 05018G35KT. What does this mean in terms of wind speed?

A

Wind is 18 knots with gusts up to 35 knots.

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15
Q

You look up the current METAR prior to your flight and the wind group appears as VRB10KT. What is the wind direction?

A

Variable wind direction

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16
Q

If reported by an ASOS/AWOS station and visibility is 12 statute miles, how will this appear in the report?

A

10SM.

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17
Q

If tower or surface visibility is below four statute miles, which will be reported in the body of the report?

A

The lesser of the two.

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18
Q

Runway Visual Range (RVR) follows the visibility (R32L/1200FT). The group preceding the solidus (“/”) indicates what?

A

The runway designator.

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19
Q

If the RVR group appears as R12L/1000V4000FT what does the portion after the solidus (“/”) mean?

A

RVR is variable between approximately 1,000 feet to 4,000 feet.

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20
Q

What does the signifier “P” mean when present in the RVR group?

A

An observed RVR is above the maximum value for this system.

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21
Q

What is the first reportable item in the weather phenomena grouping?

A

Intensity.

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22
Q

Which symbol denotes moderate intensity to precipitation?

A

No symbol.

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23
Q

If the METAR weather grouping includes the contraction “VC” what does this denote?

A

That the weather conditions are occurring within 5 to 10 miles of the airport.

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24
Q

Which descriptor denotes shallow?

A

MI.

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25
Q

To describe fog as partial, the METAR code will use what descriptor code?

A

PR.

26
Q

If more than one type of precipitation is occurring at the same time, such as heavy rain showers with moderate snow grains and ice pellets, how will it be reported in the METAR?

A

The most dominant will be provided first: +SHRA SG PL.

27
Q

True or False? If an intensity symbol precedes a descriptor, such as TS for thunderstorm, it applies to the descriptor.

A

False, intensity symbols only apply to the precipitation.

28
Q

The precipitation code for hail is:

A

GR.

29
Q

In order for fog to be observed or forecast, the visibility must be:

A

Less than 5/8ths of a mile.

30
Q

Sky cover is reported in eighths of sky cover. How would 6/8s sky cover be reported?

A

As BKN or broken cloud cover.

31
Q

When no clouds below 12,000 feet are reported at an automated station, how will it appear in the METAR?

A

CLR.

32
Q

How are cloud base heights reported?

A

Three digits in hundreds of feet.

33
Q

How would the sky cover condition of 2/8ths cloud cover at 2,500 feet, and 7/8ths towering cumulus cloud cover at 5,000 feet be provided in the METAR?

A

FEW025 BKN050TCU.

34
Q

The temperature/dew point group of the METAR report appears as 19/. What does this indicate?

A

The dew point is not available.

35
Q

What is the final element of the body of all METAR reports?

A

Altimeter.

36
Q

METARs reported by an automated station that can detect the difference between liquid and frozen or freezing precipitation will have what modifier in the remarks section?

A

A02.

37
Q

When will the remarks section include a group for wind?

A

Whenever the peak wind exceeds 25 knots.

38
Q

The number following WSHFT denotes what? (for example: WSHFT 30)

A

The time the wind shift began.

39
Q

The following group is reported in the METAR remarks section: VIS 1/4V2. What does this indicate?

A

Visibility is variable between 1/4 SM and 2 SM.

40
Q

What weather phenomena will be reported on in the remarks section? Choose any combination of: A) Funnel clouds, B) Lightning, C) Precipitation, and/or D) Thunderstorms.

A

A, B, C, and D.

41
Q

A hail storm is observed with hailstones sizes ranging from 1/4 inch to 1 inch in diameter. What would appear in the remarks section of the METAR?

A

GR 1.

42
Q

When lightning is observed at a manual station, it is reported in the remarks section of the METAR. For lightning occurring at about 4 flashes/minute between the clouds and the ground, how would this be reported in the METAR?

A

FRQ LTGCG.

43
Q

Variable ceiling information is provided in the remarks section when the ceiling is:

A

Below three thousand feet and is variable.

44
Q

What does the remark PRESRR signify?

A

That the pressure is rising rapidly.

45
Q

The remark SLP161 signifies what element of a METAR report?

A

The sea level pressure in hectopascals.

46
Q

Most TAFs have a forecast period of:

A

24 hours.

47
Q

Two sets of date and time information are provided in a TAF. The group that provides the valid period date and time appears in the TAF as:

A

Two four-digit sets containing a two digit date and two digit hour, separated by a “/” with the valid to date after the “/”. (0512/0618)

48
Q

If an airport or terminal only operates on a part-time basis, what will appear at the end of the forecast text during hours the airport or terminal is closed?

A

AMD NOT SKED.

49
Q

The contraction NSW, found only in BECMG or TEMP groups of the TAF, signifies what?

A

No significant weather.

50
Q

When is vertical visibility forecast?

A

When the sky is obscured due to a surface-based phenomenon.

51
Q

As in the METAR, ceiling layers are not designated in the TAF. How do you determine the ceiling?

A

It is the lowest broken or overcast layer or vertical visibility.

52
Q

If the forecast for the 14th of the month included a 45% chance of thunderstorms and heavy rain between 0200 and 0500 UTC, how would this appear in the TAF?

A

PROB40 1402/1405 +TSRA.

53
Q

If overcast cloud conditions at 2,500 feet are forecast to gradually shift to scattered cloud layer at 1,400 feet between 1200 and 1500 UTC, how would this be reported in the TAF?

A

OVC025 BECMG 1512/1515 SCT014.

54
Q

Only weather conditions that are forecasted to change are included in forecasted periods. From which group are weather conditions omitted if it is not significant to aviation?

A

FM.

55
Q

When is the forecast indicator TEMPO used in a TAF?

A

Any condition is expected to last for less than one hour and is expected to occur during less than half the time period.

56
Q

Which of the following METAR reports includes drizzling rain?

A

METAR KICT 250956Z COR 22015KT 3SM -DZRA OVC030 18/16 A2900.

57
Q

The following grouping is provided in the remarks section of a METAR report: RAB0315E0435SNB04E40. What information does it provide?

A

The time that rain began and ended and snow began.

58
Q

Which of the following METAR reports is from an automated weather reporting station using human augmentation?

A

KMSY 251453Z 01006KT 10SM SCT030 SCT250 28/23 A2985 RMK AO2 SLP110.

59
Q

Visibility on the 14th is forecast to occasionally drop to 1/4SM due to fog between 1000 and 1300 UTC. How will this be reported in the TAF?

A

TEMPO 1410/1413 1/4SM FG.

60
Q

A TAF report forecasts light rain showers gradually shifting to moderate snow showers between 0900 and 1200 on the 17th. How will this appear in the TAF report?

A

-SHRA BECMG 1709/1712 SHSN.

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