Appendix 3

AppendixAppendix

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) ()	– or +		—
	Weather (C)	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) ()	Cloud amount and height of base or vertical visibility (M)	FEWnnn or SCTnnn or BKNnnn or OVCnnn	VVnnn or VV///	N S C
12	Cloud (M) ()	Cloud type (C)	CB or TCU	—	N S C
13	Temperature (O) ()	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	N S W
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	—	N S C

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’

APPENDIX · Appendix 3 — Regulation (EU) 2017/373 · Regulation (EU) 2021/1338 · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025