Reports + forecasts

Question 1

ABT

Answer 1

about

Question 2

ABV

Answer 2

above

Question 3

AFT

Answer 3

after

Question 4

AMD

Answer 4

amend/amended

Question 5

COT

Answer 5

at the coast

Question 6

BECMG

Answer 6

becoming

Question 7

BFR

Answer 7

before

Question 8

BDRY

Answer 8

boundary

Question 9

CLR

Answer 9

clear

Question 10

BASE

Answer 10

cloud base

Question 11

CONS

Answer 11

continuous

Question 12

DTRT

Answer 12

deteriorating/deteriorate

Question 13

EMBD (define meaning)

Answer 13

Embedded in a layer

When used in a GRAFOR chart to describe deep convective cloud it indicates that convective cloud is embedded in layers
of other cloud.

Question 14

EXC

Answer 14

except

Question 15

EXTD

Answer 15

extended

Question 16

FRQ (define meaning)

Answer 16

frequent

When used in a GRAFOR chart to describe deep convective cloud it is an area with maximum
spatial coverage greater than
75%

Question 17

FM

Answer 17

from

Question 18

IMPR

Answer 18

improving

Question 19

INTSF

Answer 19

intensifying

Question 20

ISOL (define meaning)

Answer 20

isolated

When used in a GRAFOR chart to describe deep convective cloud it is an area with max coverage up to 50%

Question 21

LAN

Answer 21

inland

Question 22

LCA

Answer 22

local/locally/location/located

Question 23

MT

Answer 23

mountain

Question 24

MOV

Answer 24

moving/move

Question 25

NSC

Answer 25

nil significant cloud

Question 26

NSW

Answer 26

nil significant weather

Question 27

OCNL

Answer 27

occasional/occasionally

When used in a GRAFOR chart to describe deep convective cloud it is an area with maximum
spatial coverage greater than
50% but less than 75%

Question 28

TS

Answer 28

thunderstorm

Question 29

TL

Answer 29

till

Question 30

TCU

Answer 30

towering cumulus

Question 31

VAL

Answer 31

in valleys

Question 32

VCY

Answer 32

vicinity

Question 33

WKN

Answer 33

weakening

Question 34

WDSR

Answer 34

widespread

Question 35

WI

Answer 35

within

Question 36

SFC

Answer 36

surface

Question 37

SH

Answer 37

showers

Question 38

DR

Answer 38

low drifting

Question 39

BL

Answer 39

blowing

Question 40

FZ

Answer 40

freezing

Question 41

DZ

Answer 41

drizzle

Question 42

RA

Answer 42

rain

Question 43

GS

Answer 43

small hail/snow pellets

Question 44

GR

Answer 44

hail

Question 45

SN

Answer 45

snow

Question 46

SG

Answer 46

snow grains

Question 47

IC

Answer 47

ice crystals

Question 48

BR

Answer 48

mist

Question 49

FG

Answer 49

fog

Question 50

HZ

Answer 50

haze

Question 51

FU

Answer 51

smoke

Question 52

VA

Answer 52

volcanic ash

Question 53

DU

Answer 53

widespread dust

Question 54

SA

Answer 54

sand

Question 55

SQ

Answer 55

squall

Question 56

FC

Answer 56

funnel cloud

Question 57

PO

Answer 57

dust/sandwhirls

Question 58

SS

Answer 58

sandstorm

Question 59

DS

Answer 59

duststorm

Question 60

SKC

Answer 60

sky clear (0/8ths)

Question 61

FEW (how many oktas)

Answer 61

1-2/8

Question 62

SCT

Answer 62

3-4/8

Question 63

BKN

Answer 63

5-7/8

Question 64

OVC

Answer 64

8/8

Question 65

CAVOK

Answer 65

cloud and visibility okay, visibility is better than 10km, no Cb or TCu, no other cloud below 5000ft

Question 66

MI

Answer 66

shallow

Question 67

BC

Answer 67

patches

Question 68

PR

Answer 68

partial

Question 69

PL

Answer 69

ice pellets

Question 70

VC

Answer 70

in the vicinity between 8-16km of aerodrome reference point

Question 71

TEMPO (define meaning)

Answer 71

temporary changes each lasting less than 60 mins

Question 72

BECMG (define meaning)

Answer 72

Becoming - permanent change is expected to take place gradually throughout the period specified

Question 73

RE

Answer 73

recent

Question 74

WS Rdrdr

Answer 74

Wind shear on runway ___

Question 75

WS ALL RWY

Answer 75

wind shear affecting all runways

Question 76

RMK

Answer 76

remark in plain language appended to report

Question 77

COR

Answer 77

corrected

Question 78

//

Answer 78

present weather not detected

Question 79

///

Answer 79

cloud type cant be detected by AWS

Question 80

GRAFOR chart

Answer 80

Graphical aviation forecast - shows cloud / weather areas including freezing level across the country

Question 81

GRAFOR chart validity time of components

Answer 81

Fixed validity
- Freezing level
- Fronts
- Cloud/weather areas delineated by thick green lines

Validity of +/- 3 hours to the fixed time
- Cloud/weather box
- Non-deep convective cloud
- Deep convective cloud
- Visibility + weather

Question 82

GRAFOR Amendment

Answer 82

Amendments will be issued if there is widespread weather conditions not corresponding to the forecast, noted by AMD in the validity box as well as the reason for the amendment

Question 83

GRAFOR validity times

Answer 83

Issued twice a day as a set of 3 covering a total period of 18 hours
- Issue 1 is made available at 1100Z and is valid for 1800Z, 0000Z and 6000Z
- Issue 2 is made available 2100Z and is valid for 0000Z, 6000Z and 1200Z

Question 84

GRAFOR freezing level

Answer 84

Shown in light blue box, as hundreds of ft AMSL

Question 85

GRAFOR - non deep convective cloud

Answer 85

Described by amounts (eg OVC, BKN, SCT), bases and tops (in
hundreds of feet AMSL, as a
single value or a range)

Question 86

GRAFOR - non deep convective cloud

Answer 86

Described by spatial coverage (eg.
ISOL, FRQ, OCNL), Type of cloud: (eg TCU or CB), Bases and tops (in hundreds of feet AMSL, as a single
value or a range)

Question 87

GRAFOR chart cloud description what does XXX mean

Answer 87

Tops are above 10,000ft
AMSL

Question 88

Heights of clouds in GRAFOR report

Answer 88

AMSL