MET

Question 1

FBL

Answer 1

Light - (METAR) (stands for Feeble)

Question 2

HVY

Answer 2

Heavy + (METAR)

Question 3

VC

Answer 3

Vicinity

Question 4

MI

Answer 4

Shallow

Question 5

BC

Answer 5

Patches

Question 6

PR

Answer 6

Partial

Question 7

DR

Answer 7

Drifting

Question 8

BL

Answer 8

Blowing

Question 9

SH

Answer 9

Showers

Question 10

TS

Answer 10

Thunderstorms

Question 11

FZ

Answer 11

Freezing

Question 12

DZ

Answer 12

Drizzle

Question 13

RA

Answer 13

Rain

Question 14

SN

Answer 14

Snow

Question 15

SG

Answer 15

Snow Grains

Question 16

PL

Answer 16

Ice Pellets

Question 17

GR

Answer 17

Hail

Question 18

GS

Answer 18

Small hail or snow pellets

Question 19

BR

Answer 19

Mist

Question 20

FG

Answer 20

Fog

Question 21

FU

Answer 21

Smoke

Question 22

VA

Answer 22

Volcanic ash

Question 23

DU

Answer 23

Dust

Question 24

SA

Answer 24

Sand

Question 25

HZ

Answer 25

Haze

Question 26

SQ

Answer 26

Squall

Question 27

FC

Answer 27

Funnel cloud

Question 28

PO

Answer 28

Dust/Sand whirls

Question 29

DS

Answer 29

Dust storm

Question 30

SS

Answer 30

Sandstorm

Question 31

Low clouds

Answer 31

0-6500ft
Stratus, Stratocumulus, Cumulus

Question 32

Middle clouds

Answer 32

6500-20 000ft
Altostratus, Altocumulus, Nimbostratus

Question 33

High clouds

Answer 33

Over 20 000ft
Cirrus, Cirrostratus, Cirrocumulus

Question 34

TC

Answer 34

Towering Cumulus

Question 35

CB

Answer 35

Cumulonimbus

Question 36

Tropopause height?

Answer 36

7-18km (22 000- 60 000ft)
depending on season and latitude

Question 37

Dew point

Answer 37

100% Relative humidity
(Full saturation)

Question 38

Strati form clouds

Answer 38

• Continuous precipitation
• Drizzle, rain, snow
• Steady intensity - light to moderate
• Smaller sized particles

Question 39

Convective clouds

Answer 39

• Precipitation with larger sized particles
• Intermittent duration
• Varying intensity - moderate to heavy
• Showers rain/snow, hail

Question 40

Virga clouds

Answer 40

Precipitation evaporating before reaching the ground

Question 41

Cloud Base

Answer 41

The lowest height of the visible portion of the cloud

Question 42

Cloud Ceiling

Answer 42

The height above the ground or water of the base of the lowest layer of cloud below 20 000ft covering more than half (5 octas or more) of the sky

Question 43

FEW

Answer 43

Few (1 to 2 octas)

Question 44

SCT

Answer 44

Scattered (3 to 4 octas)

Question 45

BKN

Answer 45

Broken (5 to 7 octas)

Question 46

OVC

Answer 46

Overcast (8 octas)

Question 47

VV

Answer 47

Vertical visibility (indefinite ceiling)
No base layer can be measured by electronic equipment

Question 48

CAVOK

Answer 48

Ceiling and visibility OK

Question 49

NSC

Answer 49

No significant clouds

Question 50

NCD

Answer 50

No clouds detected