METAR

#1. When a TREND is included at the end of a METAR, the trend is a forecast valid for:

1 hour after the time of observation

2 hours after the time of observation

2 hours after it was issued

1 hour after it was issued

TREND forecast is valid for 2 hours after the time of the observation of the METAR, and constitutes the final section of the METAR. The change in weather conditions indicated by the code, TREND, can be further qualified by the codes, BECMG, meaning becoming, or TEMPO meaning temporarily.

#2. A METAR may be defined as being:

A routine weather report for a large area

An aerodrome forecast containing a TREND for the next 2 hours

A routine weather report concerning a specific aerodrome

A forecast weather report concerning a specific aerodrome

The letters METAR stand for METeorological Aerodrome Report. METARs contain coded messages pertaining to the actual weather conditions at a given aerodrome, at a stated time.

METARs are usually issued every half hour during aerodrome operating hours.

#3. In the METAR shown below, the cloud base has been omitted. At what height might you expect the cloud-base to be? 28005KT 9999 ?????? 12/11 Q1020 NOSIG

SCT042

OVC090

SCT280

OVC005

Cloud base is given as a three-digit figure showing hundreds of feet. Cloud base in a METAR is always measured as height above aerodrome level, using the current aerodrome QFE.

In the above metar visibility is 9999 or cavok

Once the visibility reaches 10 km or more, the code figure used is 9999.

If CAVOK is used, it will replace the visibility, RVR, weather and cloud groups. There are four criteria which must be met in order for CAVOK to appear in the METAR. These are:

the visibility must be 10 kilometres or more.

the height of the lowest cloud must be no less than 5 000 feet, or the level of highest minimum sector altitude, whichever is the greater.

there must be no cumulonimbus present.

there must be no significant weather.

#4. Which of the following correctly decodes the METAR shown below? METAR EGKL 130350Z 32005KT 0400N DZ BCFG VV002

Observed on the 13th day of the month at 0350Z, surface wind 320° True, 05kt, minimum visibility 400 metres to the north, moderate drizzle, with fog patches and a vertical visibility of 200 ft

Reported on the 13th day of the month at 0350Z, surface wind 320° magnetic, 05kt, minimum visibility 400 metres to the north, moderate drizzle, with fog patches and a vertical visibility of 200 ft

Valid on the 13th day of the month between 0300 and 1500Z, surface wind 320°T/05kt, minimum visibility 400 metres, drizzle, with fog patches and a vertical visibility of 200 ft

Valid between 1300 and 1350Z, surface wind 320°T/05kt, minimum visibility 400 metres to the north, moderate drizzle, with fog patches and a vertical visibility of 200 ft

EGKL – dean land airport

130350Z 13th is date

0350 is time

Z means utc

32005KT direction of wind in terms of true north and speed 5 knots

0400N visibility in metre and direction north

DZ -drizzle

BCFG VV002 ,BC – Patches, FG IS FOG,vv is vertical visibility

#5. A temperature group of 28/24 in a METAR means that:

The temperature is 28° C at the time of reporting, but it is expected to become 24° C by the end of the TREND report

The dry bulb is 28° C and the wet bulb temperature is 24° C

The dew point is 28° C and the temperature is 24° C

The temperature is 28° C and the dew point is 24° C

The temperature and dew point constitute the next group in the METAR code. The temperature and dew point code is simply a two-digit number giving the air temperature, with a forward slash, followed by another two-digit number which indicates the dew point

#6. Providing the minimum sector altitude is not a factor, CAVOK in a TAF or METAR:

Means visibility 10 km or more, and no cloud below 5,000 ft

Means visibility 10 km or more, and few cloud below 5,000 ft

Means visibility 10 nm or more, and no cloud below 5,000 ft

Means visibility 10 nm or more, and no scattered cloud below 5,000 ft.

If CAVOK is used, it will replace the visibility, RVR, weather and cloud groups. There are four criteria which must be met in order for CAVOK to appear in the METAR. These are:

the visibility must be 10 kilometres or more.

the height of the lowest cloud must be no less than 5 000 feet, or the level of highest minimum sector altitude, whichever is the greater.

there must be no cumulonimbus present.

there must be no significant weather.

#7. The visibility group R20/0050 in a METAR means:

As measured by runway measuring equipment for runway 20, a current visibility of 50 metres

For runway 20, a current visibility of 500 metres measured by runway visual range equipment

The runway visibility reported is 50 metres as measured by runway visual range equipment in the last 20 minutes

On runway 20 the current viability is less than 5 000 metres

#8. The code “BECMG FM 1100 –RASH” in a METAR means:

From 1100UTC, the cessation of rain showers

Becoming from 1100UTC slight rain showers

Becoming from 1100UTC rain showers

Becoming from 1100UTC till 0000UTC slight rain showers

RA is rain

SH Is shower

Dgca Question Bank For Pilots

Results