Template for TAF

Key:

M      =        inclusion mandatory;

C       =        inclusion conditional, dependent on meteorological conditions or method of observation;

O       =        inclusion optional.

Note 1: The ranges and resolutions for the numerical elements included in TAF are provided in a separate table below this template.

Note 2: The explanations for the abbreviations can be found in ICAO Doc 8400 Procedures for Air Navigation Services — ICAO Abbreviations and Codes (PANS-ABC).

Note 3: Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the TAF.

Ref.

Element

Detailed content

Template(s)

1

Identification of the type of forecast (M)

Type of forecast (M)

TAF or TAF AMD or TAF COR

2

Location indicator (M)

ICAO location indicator (M)

nnnn

3

Time of issue of the forecast (M)

Day and time of issue of the forecast in UTC (M)

nnnnnnZ

4

Identification of a missing forecast (C)

Missing forecast identifier (C)

NIL

5

END OF TAF IF THE FORECAST IS MISSING.

6

Days and period of validity of the forecast (M)

Days and period of validity of the forecast in UTC (M)

nnnn/nnnn

7

Identification of a cancelled forecast (C)

Cancelled forecast identifier (C)

CNL

8

END OF TAF IF THE FORECAST IS CANCELLED.

9

Surface wind (M)

Wind direction (M)

nnn or VRB

Wind speed (M)

[P]nn[n]

Significant speed variations (C)

G[P]nn[n]

Units of measurement (M)

KT

10

Visibility (M)

Prevailing visibility (M)

nnnn

C

A

V

O

K

11

Weather (C)

Intensity of weather phenomena (C) ([76])

– or +

—

Characteristics and type of weather phenomena (C)

DZ or RA or

SN or SG or

PL or DS or

SS or FZDZ or

FZRA or SHGR or

SHGS or SHRA or

SHSN or TSGR or

TSGS or TSRA or

TSSN

FG or

BR or

SA or

DU or

HZ or

FU or

VA or

SQ or

PO or

FC or

TS or

BCFG or

BLDU or

BLSA or

BLSN or

DRDU or

DRSA or

DRSN or

FZFG or

MIFG or

PRFG

12

Cloud (M) ([77])

Cloud amount and height of base or vertical visibility (M)

FEWnnn

or

SCTnnn or

BKNnnn or

OVCnnn

VVnnn

or

VV///

N

S

C

Cloud type (C)

CB or TCU

—

13

Temperature (O) ([78])

Name of the element (M)

TX

Maximum temperature (M)

[M]nn/

Day and time of occurrence of the maximum temperature (M)

nnnnZ

Name of the element (M)

TN

Minimum temperature (M)

[M]nn/

Day and time of occurrence of the minimum temperature (M)

nnnnZ

14

Expected significant changes to one or more of the above elements during the period of validity (C)

Change or probability indicator (M)

PROB30 [TEMPO] or PROB40 [TEMPO] or BECMG or TEMPO or FM

Period of occurrence or change (M)

nnnn/nnnn or nnnnnn

Wind (C)

nnn[P]nn[G[P]nn]KT

or

VRBnnKT

Prevailing visibility (C)

nnnn

C

A

V

O

K

Weather phenomenon: intensity (C)

– or +

—

N

S

W

Weather phenomenon: characteristics and type (C)

DZ or

RA or

SN or

SG or

PL or

DS or

SS or

FZDZ or

FZRA or

SHGR or

SHGS or

SHRA or

SHSN or

TSGR or

TSGS or

TSRA or

TSSN

FG or

BR or

SA or

DU or

HZ or

FU or

VA or

SQ or

PO or

FC or

TS or

BCFG or

BLDU or

BLSA or

BLSN or

DRDU or

DRSA or

DRSN or

FZFG or

MIFG or

PRFG

15

Cloud amount and height of base or vertical visibility (C)

FEWnnn or

SCTnnn or

BKNnnn or

OVCnnn

VVnnn

or

VV///

N

S

C

Cloud type (C)

CB or TCU

—

Ranges and resolutions for the numerical elements included in TAF

Ref.

Elements

Range

Resolution

1

Wind direction:

° true

000–360

10

2

Wind speed:

KT

00–99

1

3

Visibility:

M

0000–0750

50

M

0800–4 900

100

M

5 000–9 000

1 000

M

10 000 or greater

0 (fixed value: 9 999)

4

Vertical visibility:

100’s FT

000–020

1

5

Cloud: height of cloud base:

100’s FT                                                            

000–099

100–200

1

10

6

Air temperature (maximum and minimum):            

°C

–80 – +60

1’