Met 1

Question 1

What is a weather report?

Answer 1

A statement of weather conditions that exist at a given time and place.

Question 2

What is the met offices responsible for supplying?

Answer 2

Actual weather reports (twice hourly)
Special weather reports 
Crash actuals 
Weather forecasts 
Weather warnings

Question 3

What information is on a met form?

Answer 3

Date and time
Serial number
Surface wind

Question 4

Definitions of gust?

Answer 4

A sudden increase in speed of 10 knots or more above the average wind speed lasting a few seconds

Question 5

Definition of Squall?

Answer 5

Any increase in speeding lasting several minutes often with a change of direction and heavy precipitation

Question 6

Definition of Gale?

Answer 6

An average speed of 34 knots or more and or gusts of 43 knots or more.

Question 7

What does veering mean?

Answer 7

Change in direction clockwise

Question 8

What does backing mean?

Answer 8

Change in direction anti-clockwise

Question 9

What does max mean in relation to wind?

Answer 9

The highest gust in the 10 minutes prior to observation

Question 10

What is visibility?

Answer 10

The greatest horizontal distance at which an object can be seen and recognised in daylight, or at night could be seen and recognised if the general illumination were raised to daylight level.

Question 11

What is a cloud?

Answer 11

Composed of water droplets, or ice crystals.

Question 12

Which 2 cloud types need to be on the metform?

Answer 12

Towering Cumulus (TCU)
Cumulonimbus (CB)

Question 13

What can thunderstorms do?

Answer 13

Weather; sudden lowering of cloud base, reduced visibility, precipitation
Hail; Causes damage to airframes, builds up on a runway
Icing; Ice forms on airframes reducing aircraft performance and capability
Lightning; Causes temporary blinding of aircrew, damage to runways, affects communications and aircraft instruments.
Squalls; Sudden changes in surface wind speed and direction
Turbulence; Sudden up-draughts and down-draughts up to 25km away.

Question 14

Reporting clouds, what is 1-2 oktas, 3-4 oktas, 5-7 oktas and 8 oktas?

Answer 14

Few (FEW)
Scattered (SCT)
Broken (BKN)
Overcast (OVC)

Question 15

What does SKC mean?

Answer 15

Sky clear, no clouds

Question 16

What is Sky Obs?

Answer 16

Sky obscured. Base if clouds can’t be determined

Question 17

What 2 temperatures are reported on the metform?

Answer 17

Dry Bulb; outside air temperature (OAT)

Dew point; the temperature at which water droplets form in the air.

Question 18

How temperature is reported?

Answer 18

Whole degrees Celsius using 2 digits followed by either PS for plus or MS for minus.

Exp. PS06 or MS21

Question 19

When do we Issue of special weather reports.

Answer 19

Significant change in the weather conditions. Word SPECIAL will be written in RED. When updated the change should also be in RED.