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Appendix 5

Regulation (EU) 2021/1338

Template for SIGMET and AIRMET

Key:

M=inclusion mandatory;

C=inclusion conditional, whenever applicable; and

Note 1: The ranges and resolutions for the numerical elements included in SIGMET or AIRMET are shown in Appendix 8.

Note 2: Severe or moderate icing (SEV ICE, MOD ICE) and severe or moderate turbulence (SEV TURB, MOD TURB) associated with thunderstorms, cumulonimbus clouds or tropical cyclones should not be included.

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

Ref.

Element

Detailed content

SIGMET template

AIRMET template

1

Location indicator of FIR/CTA (M)

ICAO location indicator of the ATS unit serving the FIR or CTA to which the SIGMET/AIRMET refers

nnnn

2

Identification (M)

SIGMET or AIRMET identification and sequence number

SIGMET nnn

AIRMET [n][n]n

3

Validity period (M)

Day-time groups indicating the period of validity in UTC

VALID nnnnnn/nnnnnn

4

Location indicator of MWO (M)

Location indicator of MWO originating the SIGMET or AIRMET with a separating hyphen

nnnn–

5

New line

6

Name of the FIR/CTA (M)

Location indicator and name of the FIR/CTA for which the SIGMET/AIRMET is issued

nnnn nnnnnnnnnn FIR

or

UIR

or

FIR/UIR

or nnnn nnnnnnnnnn CTA

nnnn nnnnnnnnnn

FIR[/n]

7

IF THE SIGMET OR AIRMET IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE.

8

Status indicator (C) (80)

Indicator of test or exercise

TEST or EXER

TEST or EXER

9

New line

10

Phenomenon (M)

Description of the phenomenon causing the issuance of SIGMET/AIRMET

OBSC TS[GR]

EMBD TS[GR]

FRQ TS[GR]

SQL TS[GR]

TC nnnnnnnnnn PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] CB

or

TC NN (81) PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] CB

SEV TURB

SEV ICE

SEV ICE (FZRA)

SEV MTW

HVY DS

HVY SS

[VA ERUPTION] [MT nnnnnnnnnn]

[PSN Nnn[nn] or Snn[nn] Ennn[nn] or Wnnn[nn]]

VA CLD

RDOACT CLD

SFC WIND nnn/nn[n]KT

SFC VIS [n][n]nnM (nn)

ISOL TS[GR]

OCNL TS[GR]

MT OBSC

BKN CLD

BKN CLD [n]nnn/[ABV][n]nnnnFT

or

BKN CLD SFC/[ABV][n]nnnnFT

or

OVC CLD [n]nnn/[ABV][n]nnnnFT

or

OVC CLD SFC/[ABV][n]nnnnFT

ISOL CB

OCNL CB

FRQ CB

ISOL TCU

OCNL TCU

FRQ TCU

MOD TURB

MOD ICE

MOD MTW

11

Observed or forecast phenomenon (M) (82),(83)

Indication whether the information is observed and expected to continue, or forecast

OBS [AT nnnnZ] or

FCST [AT nnnnZ]

12

Location (C) (84),(85),(86)

Location (referring to latitude and longitude (in degrees and minutes))

Nnn[nn] Wnnn[nn] or

Nnn[nn] Ennn[nn] or

Snn[nn] Wnnn[nn] or

Snn[nn] Ennn[nn]

or

N OF Nnn[nn] or

S OF Nnn[nn] or

N OF Snn[nn] or

S OF Snn[nn] or

[AND]

W OF Wnnn[nn] or

E OF Wnnn[nn] or

W OF Ennn[nn] or

E OF Ennn[nn]

or

N OF Nnn[nn] or N OF Snn[nn] AND S OF Nnn[nn] or S OF Snn[nn]

or

W OF Wnnn[nn] or W OF Ennn[nn] AND E OF Wnnn[nn] or E OF Ennn[nn]

or

N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] [AND N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]]]

or

WI Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – [Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]](87)

or ENTIRE UIR

or ENTIRE FIR

or ENTIRE FIR/UIR

or ENTIRE CTA

or WI nnnKM (or nnnNM) OF TC CENTRE (88)

or WI nnKM (or nnNM) OF Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] (89)

13

Level (C)

Flight level or altitude

[SFC/]FLnnn or

[SFC/][n]nnnnFT (or [SFC/]nnnnM)

FLnnn/nnn or

TOP FLnnn or

[TOP] ABV FLnnn or (or [TOP] ABV [n]nnnnFT) [[n]nnnn/][n]nnnnFT) or [n]nnnnFT/]FLnnn

or TOP [ABV or BLW] FLnnn (90)

14

Movement or expected movement (C) (91),(92),(93)

Movement or expected movement (direction and speed) with reference to one of the 16 points of compass, or stationary

MOV N [nnKMH] or MOV NNE [nnKMH] or

MOV NE [nnKMH] or MOV ENE [nnKMH] or

MOV E [nnKMH] or MOV ESE [nnKMH] or

MOV SE [nnKMH] or MOV SSE [nnKMH] or

MOV S [nnKMH] or MOV SSW [nnKMH] or

MOV SW [nnKMH] or MOV WSW [nnKMH] or

MOV W [nnKMH] or MOV WNW [nnKMH] or

MOV NW [nnKMH] or MOV NNW [nnKMH]

(or MOV N [nnKT] or MOV NNE [nnKT] or

MOV NE [nnKT] or MOV ENE [nnKT] or

MOV E [nnKT] or MOV ESE [nnKT] or

MOV SE [nnKT] or MOV SSE [nnKT] or

MOV S [nnKT] or MOV SSW [nnKT] or

MOV SW [nnKT] or MOV WSW [nnKT] or

MOV W [nnKT] or MOV WNW [nnKT] or

MOV NW [nnKT] or MOV NNW [nnKT])

or

STNR

15

Changes in intensity (C) (94)

Expected changes in intensity

INTSF or

WKN or

NC

16

Forecast time (C) (95),(96),(97)

Indication of the forecast time of the phenomenon

FCST AT nnnnZ

—

17

TC forecast position (C) (98)

Forecast position of the TC centre

TC CENTRE PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

or

TC CENTRE PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] CB (99)

—

18

Forecast position (C) (100),(101),(102),(103)

Forecast position of the phenomenon at the end of the validity period of the SIGMET (104)

Nnn[nn] Wnnn[nn] or

Nnn[nn] Ennn[nn] or

Snn[nn] Wnnn[nn] or

Snn[nn] Ennn[nn]

or

N OF Nnn[nn] or

S OF Nnn[nn] or

N OF Snn[nn] or

S OF Snn[nn]

[AND]

W OF Wnnn[nn] or

E OF Wnnn[nn] or

W OF Ennn[nn] or

E OF Ennn[nn]

or

N OF Nnn[nn] or N OF Snn[nn] AND S OF Nnn[nn] or S OF Snn[nn]

or

W OF Wnnn[nn] or W OF Ennn[nn] AND E OF Wnnn[nn] or E OF Ennn[nn]

or

N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn[nn] or

Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] [AND N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] [– Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]]]

or

WI Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] (105)

or ENTIRE FIR

or ENTIRE UIR

or ENTIRE FIR/UIR

or ENTIRE CTA

or NO VA EXP (106)

or

WI nnKM (or nnNM) OF Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] (107)

or

WI nnnKM (nnnNM) OF TC CENTRE (108)

—

19

Repetition of elements (C) (109)

Repetition of elements included in a SIGMET for volcanic ash cloud or tropical cyclone

[AND] (110)

—

20

New line if repeating elements

OR

21

Cancellation of SIGMET/AIRMET (C)

Cancellation of SIGMET/AIRMET referring to its identification

CNL SIGMET nnn nnnnnn/nnnnnn

or

CNL SIGMET nnn nnnnnn/nnnnnn [VA MOV TO nnnn FIR](111)

CNL AIRMET [n][n]n nnnnnn/nnnnnn

GM1 to Appendix 5 ‘Template for SIGMET and AIRMET’

ED Decision 2022/004/R

SIGMET AND AIRMET — EXAMPLES OF ELEMENTS

Non-exhaustive examples of the different elements used in the formulation of SIGMET and AIRMET are provided below.

SIGMET and AIRMET — examples of elements

Note 1: Consult the ‘Template for SIGMET and AIRMET’ (Appendix 5 to Annex V (Part-MET) to Regulation (EU) 2017/373) to identify the mandatory (M), the conditional (C) or the optional (O) elements.

Note 2: The ranges and resolutions for the numerical elements included in SIGMET and AIRMET are provided in Appendix 8 to Annex V (Part-MET) to Regulation (EU) 2017/373.

Note 3: The row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the SIGMET and AIRMET. They do not correlate with the ‘Ref.’ column in the ‘Template for SIGMET and AIRMET’ of Appendix 5 to Annex V (Part-MET) to Regulation (EU) 2017/373. Refer to the ‘Element’ column when cross-referencing.

Ref.

Element

SIGMET examples

AIRMET examples

1

ICAO location indicator of FIR/CTA

YUCC

YUDD

2

Identification

SIGMET U05

SIGMET I12

AIRMET 2

AIRMET 19

AIRMET B19

3

Validity period

VALID 010000/010400

VALID 221215/221600

VALID 101520/101800

VALID 251600/252200

VALID 152000/160000

VALID 192300/200300

4

ICAO location indicator of MWO

YUDO–

YUSO–

5

Name of the FIR/CTA

YUCC AMSWELL FIR

YUDD SHANLON

FIR/UIR

UIR

FIR/UIR

YUDD SHANLON CTA

YUCC AMSWELL FIR/2

YUDD SHANLON FIR

6

IF THE SIGMET IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TABLE.

7

Status indicator

TEST

EXER

TEST

EXER

8

Phenomenon

OBSC TS

OBSC TSGR

EMBD TS

EMBD TSGR

FRQ TS

FRQ TSGR

SQL TS

SQL TSGR

TC GLORIA PSN N10 W060 CB

TC NN PSN S2030 E06030 CB

SEV TURB

SEV ICE

SEV ICE (FZRA)

SEV MTW

HVY DS

HVY SS

VA ERUPTION MT

ASHVAL PSN S15 E073

VA CLD

RDOACT CLD

SFC WIND 310/40KT

SFC VIS 1500M (BR)

ISOL TS

ISOL TSGR

OCNL TS

OCNL TSGR

MT OBSC

BKN CLD 400/3000FT

BKN CLD 1000/5000FT

BKN CLD SFC/ABV10000FT

OVC CLD 900/ABV10000FT

OVC CLD 1000/5000FT

OVC CLD SFC/ABV10000FT

ISOL CB

OCNL CB

FRQ CB

ISOL TCU

OCNL TCU

FRQ TCU

MOD TURB

MOD ICE

MOD MTW

9

Observed or forecast phenomenon

OBS

OBS AT 1210Z

FCST

FCST AT 1815Z

10

Location

N2020 W07005

N48 E010

S60 W160

S0530 E16530

N OF N50

S OF N5430

N OF S10

S OF S4530

W OF W155

E OF W45

W OF E15540

E OF E09015

N OF N1515 AND W OF E13530

S OF N45 AND N OF N40

N OF LINE S2520 W11510 – S2520 W12010

SW OF LINE N50 W005 – N60 W020

SW OF LINE N50 W020 – N45 E010 AND NE OF LINE N45 W020 – N40 E010

WI N6030 E02550 – N6055 E02500 – N6050 E02630 – N6030 E02550

ENTIRE FIR

ENTIRE UIR

ENTIRE FIR/UIR

ENTIRE CTA

WI 400KM OF TC CENTRE

WI 250NM OF TC CENTRE

WI 30KM OF N6030 E02550

11

Level

SFC/FL070

FL180

FL050/080

TOP FL390

ABV FL250

TOP ABV FL100

TOP FL500

TOP ABV FL500

TOP BLW FL450

SFC/10000FT

8000FT

6000/12000FT

ABV 7000FT

TOP ABV 9000FT

TOP ABV 10000FT

10000FT/FL250

3000M

SFC/3000M

2000/3000M

2000M/FL150

12

Movement or expected movement

MOV SE

MOV NNW

MOV E 20KT

MOV WSW 20KT

(MOV E 40KMH)

STNR

13

Changes in intensity

INTSF

WKN

NC

14

Forecast time

FCST AT 2200Z

—

15

TC forecast position

TC CENTRE PSN N1030 E16015

TC CENTRE PSN N1015 E15030 CB

—

16

Forecast position

N30 W170

N OF N30

S OF S50 AND W OF E170

S OF N46 AND N OF N39

NE OF LINE N35 W020 – N45 W040 SW OF LINE N48 W020 – N43 E010 AND NE OF LINE N43 W020 – N38 E010

WI N20 W090 – N05 W090 – N10 W100 – N20 W100 – N20 W090

ENTIRE FIR

ENTIRE UIR

ENTIRE FIR/UIR

ENTIRE CTA

NO VA EXP

WI 30KM OF N6030 E02550

WI 150NM OF TC CENTRE

—

17

Repetition of elements

AND

—

OR

18

Cancellation of SIGMET/ AIRMET

CNL SIGMET B04 101200/101600

CNL SIGMET A07 251030/251430 VA MOV TO YUDO FIR

CNL AIRMET 5 151520/151800

Appendix 6

Regulation (EU) 2021/1338

Template for advisory for volcanic ash

Key:

M=inclusion mandatory;

O=inclusion optional;

C=inclusion conditional, included whenever applicable.

Note 1: The ranges and resolutions for the numerical elements included in volcanic ash advisory are shown in Appendix 8.

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: The inclusion of a colon (‘:’) after each element heading is mandatory.

Note 4: Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the advisory for volcanic ash.

Ref.

Element

Detailed content

Template(s)

1

Identification of the type of message (M)

Type of message

VA ADVISORY

2

New line

3

Status indicator (C) (112)

Indicator of test or exercise

STATUS:

TEST or EXER

4

New line

5

Time of origin (M)

Year, month, day, time in UTC

DTG:

nnnnnnnn/nnnnZ

6

New line

7

Name of VAAC (M)

Name of VAAC

VAAC:

nnnnnnnnnnnn

8

New line

9

Name of volcano (M)

Name and International Association of Volcanology and Chemistry of the Earth’s Interior number of volcano

VOLCANO:

nnnnnnnnnnnnnnnnnnnnnn [nnnnnn]

or UNKNOWN

or UNNAMED

10

New line

11

Location of volcano (M)

Location of volcano in degrees and minutes

PSN:

Nnnnn or Snnnn Wnnnnn or Ennnnn

or UNKNOWN

12

New line

13

State or region (M)

State, or region if ash is not reported over a State

AREA:

nnnnnnnnnnnnnnnn or UNKNOWN

14

New line

15

Summit elevation (M)

Summit elevation in m (or ft)

SUMMIT ELEV:

nnnnM (or nnnnnFT)

or SFC

or UNKNOWN

16

New line

17

Advisory number (M)

Advisory number: year in full and message number (separate sequence for each volcano)

ADVISORY NR:

nnnn/nnnn

18

New line

19

Information source (M)

Information source using free text

INFO SOURCE:

Free text up to 32 characters

20

New line

21

Colour code (O)

Aviation colour code

AVIATION COLOUR CODE:

RED or ORANGE or YELLOW or GREEN or UNKNOWN or NOT GIVEN or NIL

22

New line

23

Eruption details (M) (113)

Eruption details (including date/time of eruption(s))

ERUPTION DETAILS:

Free text up to 64 characters

or UNKNOWN

24

New line

25

Time of observation (or estimation) of volcanic ash clouds (M)

Day and time (in UTC) of observation (or estimation) of volcanic ash clouds

OBS (or EST) VA DTG:

nn/nnnnZ

26

New line

27

Observed or estimated volcanic ash clouds (M)

Horizontal (in degrees and minutes) and vertical extent at the time of observation of the observed or estimated volcanic ash clouds or, if the base is unknown, the top of the observed or estimated volcanic ash clouds;

Movement of the observed or estimated volcanic ash clouds

OBS VA CLD or EST VA CLD:

TOP FLnnn or SFC/FLnnn or FLnnn/nnn [nnKM WID LINE BTN (nnNM WID LINE BTN)] Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn][ – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]]

MOV N nnKMH (or KT) or

MOV NE nnKMH (or KT) or

MOV E nnKMH (or KT) or

MOV SE nnKMH (or KT) or

MOV S nnKMH (or KT) or

MOV SW nnKMH (or KT) or

MOV W nnKMH (or KT) or

MOV NW nnKMH (or KT)

or

VA NOT IDENTIFIABLE FM SATELLITE DATA

WIND FLnnn/nnn nnn/nn[n]KT (114) or WIND FLnnn/nnn VRBnnKT or WIND SFC/FLnnn nnn/nn[n]KT or WIND SFC/FLnnn VRBnnKT

28

New line

29

Forecast height and position of the volcanic ash clouds
(+6 HR) (M)

Day and time (in UTC)
(6 hours from the ‘Time of observation (or estimation) of volcanic ash clouds’ given in Item 12)

Forecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time

FCST VA CLD +6 HR:

nn/nnnnZ

SFC or FLnnn/[FL]nnn [nnKM WID LINE BTN (nnNM WID LINE BTN)]Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn][ – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] (115),(116)

or NO VA EXP

or NOT AVBL

or NOT PROVIDED

30

New line

31

Forecast height and position of the volcanic ash clouds (+12 HR) (M)

Day and time (in UTC)
(12 hours from the ‘Time of observation (or estimation) of volcanic ash clouds’ given in Item 12)

Forecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time

FCST VA CLD +12 HR:

nn/nnnnZ

SFC or FLnnn/[FL]nnn [nnKM WID LINE BTN (nnNM WID LINE BTN)] Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn][ – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]] (117),(118)

or NO VA EXP

or NOT AVBL

or NOT PROVIDED

32

New line

33

Forecast height and position of the volcanic ash clouds

(+18 HR)

Day and time (in UTC)
(18 hours from the ‘Time of observation (or estimation) of volcanic ash clouds’ given in Item 12)

Forecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time

FCST VA CLD +18 HR:

nn/nnnnZ

SFC or FLnnn/[FL]nnn [nnKM WID LINE BTN (nnNM WID LINE BTN)] Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn][ – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] – Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] (119),(120)

or NO VA EXP

or NOT AVBL

or NOT PROVIDED

34

New line

35

Remarks (M) (121)

Remarks, as necessary

RMK:

Free text up to 256 characters

or NIL

36

New line

37

Next advisory (M)

Year, month, day and time in UTC

NXT ADVISORY:

nnnnnnnn/nnnnZ

or NO LATER THAN nnnnnnnn/nnnnZ

or NO FURTHER ADVISORIES

or WILL BE ISSUED BY nnnnnnnn/nnnnZ

GM1 to Appendix 6 ‘Template for advisory for volcanic ash’

ED Decision 2022/004/R

ADVISORY FOR VOLCANIC ASH — EXAMPLES OF ELEMENTS

Non-exhaustive examples of the different elements used in the formulation of advisory for volcanic ash are provided below.

Examples of elements

Note 1: Consult the ‘Template for advisory for volcanic ash’ (Appendix 6 to Annex V (Part-MET) to Regulation (EU) 2017/373) to identify the mandatory (M), the conditional (C) or the optional (O) elements.

Note 2: The ranges and resolutions for the numerical elements included in advisory for volcanic ash are provided in Appendix 8 to Annex V (Part-MET) to Regulation (EU) 2017/373.

Note 3: The row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the advisory for volcanic ash. They do not correlate with the ‘Ref.’ column in the ‘Template for advisory for volcanic ash’ of Appendix 6 to Annex V (Part-MET) to Regulation (EU) 2017/373. Refer to the ‘Element’ column when cross-referencing.

Ref.

Element

Examples

1

Identification of the type of message

VA ADVISORY

2

Status indicator

STATUS:

TEST

EXER

3

Time of origin

DTG:

20080923/0130Z

4

Name of VAAC

VAAC:

TOKYO

5

Name of volcano

VOLCANO:

KARYMSKY 300130

UNNAMED

UNKNOWN

6

Location of volcano

PSN:

N5403 E15927

UNKNOWN

7

State or region

AREA:

RUSSIA

UNKNOWN

8

Summit elevation

SUMMIT ELEV:

1536M

SFC

9

Advisory number

ADVISORY NR:

2008/4

10

Information source

INFO SOURCE:

HIMAWARI-8 KVERT KEMSD

11

Colour code

AVIATION COLOUR CODE:

RED

12

Eruption details

ERUPTION DETAILS:

ERUPTION AT 20080923/0000Z FL300 REPORTED

NO ERUPTION – RE-SUSPENDED VA (122)

UNKNOWN

13

Time of observation (or estimation) of volcanic ash clouds

OBS VA DTG:

23/0100Z

14

Observed or estimated volcanic ash clouds

OBS VA CLD:

FL250/300 N5400 E15930 – N5400 E16100 – N5300 E15945 – N5400 E15930 MOV SE 20KT SFC/FL200

N5130 E16130 – N5130 E16230 – N5230 E16230 – N5230 E16130 MOV SE 15KT

TOP FL240 MOV W 40KMH

VA NOT IDENTIFIABLE FM SATELLITE DATA

WIND FL050/070 180/24KT

15

Forecast height and position of the volcanic ash clouds (+6 HR)

FCST VA CLD +6 HR:

23/0700Z

FL250/350 N5130 E16030 – N5130 E16230 – N5330 E16230 – N5330 E16030 SFC/FL180 N4830 E16330 – N4830 E16630 – N5130 E16630 – N5130 E16330

NO VA EXP

NOT AVBL

NOT PROVIDED

16

Forecast height and position of the volcanic ash clouds (+12 HR)

FCST VA CLD +12 HR:

23/1300Z

SFC/FL270 N4830 E16130 – N4830 E16600 – N5300 E16600 – N5300 E16130 – N4830 E16130

NO VA EXP

NOT AVBL

NOT PROVIDED

17

Forecast height and position of the volcanic ash clouds (+18 HR)

FCST VA CLD +18 HR:

23/1900Z

NO VA EXP

NOT AVBL

NOT PROVIDED

18

Remarks

RMK:

LATEST REP FM KVERT (0120Z) INDICATES ERUPTION HAS CEASED. TWO DISPERSING VA CLD ARE EVIDENT ON SATELLITE IMAGERY

RE-SUSPENDED VA (123)

NIL

19

Next advisory

NXT ADVISORY:

20080923/0730Z

NO LATER THAN nnnnnnnn/nnnnZ

NO FURTHER ADVISORIES

WILL BE ISSUED BY nnnnnnnn/nnnnZ

Appendix 7

Regulation (EU) 2021/1338

Template for advisory for tropical cyclones

Key:

M=inclusion mandatory;

C=inclusion conditional, included whenever applicable;

O=inclusion optional;

==a double line indicates that the text following it should be placed on the subsequent line.

Note 1: The ranges and resolutions for the numerical elements included in tropical cyclone advisory are shown in Appendix 8.

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: The inclusion of a colon (‘:’) after each element heading is mandatory.

Note 4: Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the advisory for tropical cyclones.

Ref.

Element

Detailed content

Template(s)

1

Identification of the type of message (M)

Type of message

TC ADVISORY

2

New line

3

Status indicator (C) (124)

Indicator of test or exercise

STATUS:

TEST or EXER

4

New line

5

Time of origin (M)

Year, month, day and time of issue in UTC

DTG:

nnnnnnnn/nnnnZ

6

New line

7

Name of TCAC (M)

Name of TCAC

(location indicator orfull name)

TCAC:

nnnn or nnnnnnnnnn

8

New line

9

Name of tropical cyclone (M)

Name of tropical cyclone or ‘NN’ for unnamed tropical cyclone

TC:

nnnnnnnnnnnn or NN

10

New line

11

Advisory number (M)

Advisory: Year in full and message number (separate sequence for each tropical cyclone)

ADVISORY NR:

nnnn/[n][n][n]n

12

New line

13

Observed position of the centre (M)

Day and time (in UTC) and position of the centre of the tropical cyclone (in degrees and minutes)

OBS PSN:

nn/nnnnZ Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

14

New line

15

Observed CB cloud (O) (125)

Location of CB cloud (referring to the latitude and longitude (in degrees and minutes)) and vertical extent (flight level)

CB:

WI nnnKM (or nnnNM) OF TC CENTRE

or

WI (126) Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] –

Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] –

Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] –

[Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] –

Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]]

TOP [ABV or BLW] FLnnn

NIL

16

New line

17

Direction and speed of movement (M)

Direction and speed of movement given in 16 compass points and km/h (or kt) respectively or stationary (< 2 km/h (1 kt))

MOV:

N nnKMH (or KT) or

NNE nnKMH (or KT) or

NE nnKMH (or KT) or

ENE nnKMH (or KT) or

E nnKMH (or KT) or

ESE nnKMH (or KT) or

SE nnKMH (or KT) or

SSE nnKMH (or KT) or

S nnKMH (or KT) or

SSW nnKMH (or KT) or

SW nnKMH (or KT) or

WSW nnKMH (or KT) or

W nnKMH (or KT) or

WNW nnKMH (or KT) or

NW nnKMH (or KT) or

NNW nnKMH (or KT) or

STNR

18

New line

19

Changes in intensity (M)

Changes of maximum surface wind speed at time of observation

INTST CHANGE:

INTSF or WKN or NC

20

New line

21

Central pressure (M)

Central pressure
(in hPa)

C:

nnnHPA

22

New line

23

Maximum surface wind (M)

Maximum surface wind near the centre
(mean surface wind over 10 minutes, in kt)

MAX WIND:

nn[n]KT

24

New line

25

Forecast of centre position

(+6 HR) (M)

Day and time (in UTC) (6 hours from the DTG given in Item 5);

Forecast position (in degrees and minutes) of the centre of the tropical cyclone

FCST PSN +6 HR:

nn/nnnnZ Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

26

New line

27

Forecast of maximum surface wind (+6 HR) (M)

Forecast of maximum surface wind (6 hours after the DTG given in Item 5)

FCST MAX WIND +6 HR:

nn[n]KT

28

New line

29

Forecast of centre position

(+12 HR) (M)

Day and time (in UTC) (12 hours from the DTG given in Item 5)

Forecast position (in degrees and minutes) of the centre of the tropical cyclone

FCST PSN +12 HR:

nn/nnnnZ Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

30

New line

31

Forecast of maximum surface wind (+12 HR) (M)

Forecast of maximum surface wind
(12 hours after the DTG given in Item 5)

FCST MAX WIND +12 HR:

nn[n]KT

32

New line

33

Forecast of centre position

(+18 HR) (M)

Day and time (in UTC) (18 hours from the DTG given in Item 5)

Forecast position (in degrees and minutes) of the centre of the tropical cyclone

FCST PSN +18 HR:

nn/nnnnZ Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

34

New line

35

Forecast of maximum surface wind (+18 HR) (M)

Forecast of maximum surface wind
(18 hours after the DTG given in Item 5)

FCST MAX WIND +18 HR:

nn[n]KT

36

New line

37

Forecast of centre position

(+24 HR) (M)

Day and time (in UTC) (24 hours from the DTG given in Item 5)

Forecast position (in degrees and minutes) of the centre of the tropical cyclone

FCST PSN +24 HR:

nn/nnnnZ Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn]

38

New line

39

Forecast of maximum surface wind (+24 HR) (M)

Forecast of maximum surface wind
(24 hours after the DTG given in Item 5)

FCST MAX WIND +24 HR:

nn[n]KT

40

New line

41

Remarks (M)

Remarks, as necessary

RMK:

Free text up to 256 characters

or NIL

42

New line

43

Expected time of issuance of next advisory (M)

Expected year, month, day and time (in UTC) of issuance of next advisory

NXT MSG:

[BFR] nnnnnnnn/nnnnZ

or NO MSG EXP

GM1 to Appendix 7 ‘Template for advisory for tropical cyclones’

ED Decision 2022/004/R

ADVISORY FOR TROPICAL CYCLONES — EXAMPLES OF ELEMENTS

Non-exhaustive examples of the different elements used in the formulation of advisory for tropical cyclones are provided below.

Tropical cyclone advisory — examples of elements

Note 1: Consult the ‘Template for advisory for tropical cyclones’ (Appendix 7 to Annex V (Part-MET) to Regulation (EU) 2017/373) to identify the mandatory (M), the conditional (C) or the optional (O) elements.

Note 2: The ranges and resolutions for the numerical elements included in tropical cyclone advisory are provided in Appendix 8 to Annex V (Part-MET) to Regulation (EU) No 2017/373.

Note 3: The row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the advisory for tropical cyclones. They do not correlate with the ‘Ref.’ column in the ‘Template for advisory for tropical cyclones’ of Appendix 7 to Annex V (Part-MET) to Regulation (EU) 2017/373. Refer to the ‘Element’ column when cross-referencing.

Ref.

Element

Examples

1

Identification of the type of message

TC ADVISORY

2

Status indicator

STATUS:

TEST

EXER

3

Time of origin

DTG:

20040925/1900Z

4

Name of TCAC

TCAC:

YUFO

MIAMI

5

Name of tropical cyclone

TC:

GLORIA

6

Advisory number

ADVISORY NR:

2004/13

7

Observed position of the centre

OBS PSN:

25/1800Z N2706 W07306

8

Observed CB cloud

CB:

WI 250NM OF TC CENTRE TOP FL500

NIL

9

Direction and speed of movement

MOV:

NW 20KMH

10

Changes in intensity

INTST CHANGE:

INTSF

11

Central pressure

C:

965HPA

12

Maximum surface wind

MAX WIND:

43KT

13

Forecast of centre position (+6 HR)

FCST PSN +6 HR:

25/2200Z N2748 W07350

14

Forecast of maximum surface wind
(+6 HR)

FCST MAX WIND +6 HR:

43KT

15

Forecast of centre position (+12 HR)

FCST PSN +12 HR:

26/0400Z N2830 W07430

16

Forecast of maximum surface wind
(+12 HR)

FCST MAX WIND +12 HR:

43KT

17

Forecast of centre position (+18 HR)

FCST PSN +18 HR:

26/1000Z N2852 W07500

18

Forecast of maximum surface wind
(+18 HR)

FCST MAX WIND +18 HR:

41KT

19

Forecast of centre position (+24 HR)

FCST PSN +24 HR:

26/1600Z N2912 W07530

20

Forecast of maximum surface wind
(+24 HR)

FCST MAX WIND +24 HR:

39KT

21

Remarks

RMK:

NIL

22

Expected time of issuance of next advisory

NXT MSG:

20040925/2000Z