Commission Implementing Regulation (EU) 2020/469 of 14 February 2020 amending Regulation (EU) No 923/2012, Regulation (EU) No 139/2014 and Regulation (EU) 2017/373 as regards requirements for air traffic management/air navigation services, design of airspace structures and data quality, runway safety and repealing Regulation (EC) No 73/2010 (Text with EEA relevance)

(5) Annex V is amended as follows: (a) point MET.OR.120 is replaced by the following: ‘MET.OR.120 Notification of discrepancies to the world area forecast centres (WAFCs) The meteorological services provider using WAFS SIGWX in binary universal form for the representation of meteorological data (BUFR) code form shall notify the WAFC concerned immediately if significant discrepancies are detected or reported in respect of WAFS SIGWX forecasts concerning: (a) icing, turbulence, cumulonimbus clouds that are obscured, frequent, embedded, or occurring at a squall line, and sandstorms or dust storms; (b) volcanic eruptions or a release of radioactive materials into the atmosphere of significance to aircraft operations.’; (b) in the first paragraph of point MET.OR.205, the introductory phrase is replaced by the following: ‘An aeronautical meteorological station shall report:’; (c) in the first paragraph of point MET.OR.210, the introductory phrase is replaced by the following: ‘An aeronautical meteorological station shall observe and/or measure:’; (d) point MET.OR.240(a) is amended as follows: (i) point (2) is replaced by the following: ‘(2) METAR or SPECI, including TREND, TAF or amended TAF for the aerodromes of departure and intended landing, and for take-off, en-route and destination alternate aerodromes;’; (ii) point (6) is replaced by the following: ‘(6) area forecasts for low-level flights in chart form prepared in support of the issuance of an AIRMET, and an AIRMET for low-level flights relevant to the whole route;’; (e) MET.OR.242 is amended as follows: (i) point (a) is replaced by the following: ‘(a) An aerodrome meteorological office shall provide, as necessary, its associate aerodrome control tower and AFIS unit with: (1) local routine report, local special report, METAR, TAF and TREND and amendments thereto; (2) SIGMET, AIRMET, wind shear warnings and alerts and aerodrome warnings; (3) any additional meteorological information agreed upon locally, such as forecasts of surface wind for the determination of possible runway changes; (4) information received on volcanic ash cloud, for which a SIGMET has not already been issued, as agreed between the aerodrome meteorological office and the aerodrome control tower or the AFIS unit concerned; (5) information received on pre-eruption volcanic activity and/or a volcanic eruption as agreed between the aerodrome meteorological office and the aerodrome control tower or the AFIS unit concerned.’; (ii) in point (b), points (1) and (2) are replaced by the following: ‘(1) local routine report, local special report, METAR, TAF and TREND and amendments thereto; (2) SIGMET, AIRMET, wind shear warnings and alerts, appropriate special air-reports and aerodrome warnings;’; (f) point MET.OR.245 is amended as follows: (i) point (b) is replaced by the following: ‘(b) coordinate with the organisation responsible for the provision of NOTAM and/or ASHTAM to ensure that meteorological information on volcanic ash included in SIGMET and NOTAM and/or ASHTAM is consistent;’; (ii) point (f) is amended as follows: — points (1) and (2) are replaced by the following: ‘(1) METAR, including current pressure data for aerodromes and other locations, TAF, TREND and amendments thereto; (2) forecasts of upper winds, upper-air temperatures and significant en-route weather phenomena and amendments thereto, SIGMET, AIRMET and appropriate special air-reports;’; — points (6), (7) and (8) are replaced by the following: ‘(6) tropical cyclone advisory issued by a TCAC in its area of responsibility; (7) volcanic ash advisory issued by a VAAC in its area of responsibility; (8) information received on pre-eruption volcanic activity and/or a volcanic eruption as agreed between the meteorological watch office and the ACC/FIC;’; (iii) the following point (g) is added: ‘(g) when available, provide the relevant air traffic services units, in accordance with local agreement, with information regarding the release into the atmosphere of toxic chemicals which could affect the airspace used by flights within their area of responsibility.’; (g) point MET.OR.250 is replaced by the following: ‘MET.OR.250 SIGMET A meteorological watch office shall: (a) provide and disseminate SIGMET; (b) ensure that the SIGMET is cancelled when the phenomena are no longer occurring or are no longer expected to occur in the area covered by the SIGMET; (c) ensure that the period of validity of a SIGMET is not more than 4 hours, and in the special case of SIGMET for volcanic ash cloud and tropical cyclones, it shall be extended up to 6 hours; (d) ensure that SIGMET are issued not more than 4 hours before the commencement of the period of validity. In the special case of SIGMET for volcanic ash cloud and tropical cyclones, SIGMET shall be issued as soon as practicable, but not more than 12 hours before the commencement of the period of validity, and updated at least every 6 hours.’; (h) point MET.OR.255 is replaced by the following: ‘MET.OR.255 AIRMET A meteorological watch office shall: (a) provide and disseminate AIRMET when the competent authority has determined that the density of traffic operating below flight level 100, or up to flight level 150 in mountainous areas, or higher, where necessary, warrants the issue and dissemination of area forecasts for such operations; (b) cancel the AIRMET when the phenomena are no longer occurring or are no longer expected to occur in the area; (c) ensure that the period of validity of an AIRMET is not more than 4 hours.’; (i) point MET.OR.260(c) is replaced by the following: ‘(c) ensure that area forecasts for low-level flights prepared in support of the issuance of an AIRMET are issued every 6 hours for a period of validity of 6 hours and transmitted to the meteorological watch offices concerned not later than 1 hour prior to the beginning of their validity period.’; (j) point MET.OR.265(a)(4) is replaced by the following: ‘(4) WAFCs, international OPMET databanks, international NOTAM offices and centres designated by regional air navigation agreement for the operation of the aeronautical fixed service internet-based services;’; (k) point MET.OR.270 is amended as follows: (i) the introductory phrase is replaced by the following: ‘A TCAC shall provide:’; (ii) point (a)(3) is replaced by the following: ‘(3) WAFCs, international OPMET databanks and centres responsible for the operation of the aeronautical fixed service internet-based services;’; (l) point MET.TR.200 is amended as follows: (i) in point (a), the introductory phrase is replaced by the following: ‘Local routine report, local special report and METAR shall contain the following elements in the order indicated:’; (ii) in point (b), the introductory phrase is replaced by the following: ‘In local routine report and local special report:’; (m) MET.TR.205 is amended as follows: (i) point (a) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the surface wind direction and speed shall be reported in steps of 10 degrees true and 1 kt (0,5 m/s) respectively.’; — in point (3), the introductory sentence is replaced by the following: ‘In local routine report, local special report and METAR:’; — in point (3), point (iii)(A) is replaced by the following: ‘(A) 5 kt (2,5 m/s) or more in local routine report and local special report when noise abatement procedures are applied;’; (ii) point (b) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the visibility shall be reported in steps of 50 m when the visibility is less than 800 m; in steps of 100 m when it is 800 m or more, but less than 5 km; in kilometre steps when the visibility is 5 km or more, but less than 10 km; and it shall be given as 10 km when the visibility is 10 km or more, except when the conditions for the use of CAVOK apply.’; — point (3) is replaced by the following: ‘(3) In local routine report and local special report, visibility along the runway or runways shall be reported together with the units of measurement used to indicate visibility.’; (iii) point (c) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the RVR shall be reported in steps of 25 m when it is less than 400 m; in steps of 50 m when it is between 400 and 800 m; and in steps of 100 m when it is more than 800 m.’; — point (3) is replaced by the following: ‘(3) In local routine report, local special report and METAR: (i) when the RVR is above the maximum value that can be determined by the system in use, it shall be reported using the abbreviation ‘ABV’ in local routine report and local special report, and the abbreviation ‘P’ in METAR followed by the maximum value that can be determined by the system; (ii) when the RVR is below the minimum value that can be determined by the system in use, it shall be reported using the abbreviation ‘BLW’ in local routine report and local special report, and the abbreviation ‘M’ in METAR, followed by the minimum value that can be determined by the system.’; — in point (4), the introductory phrase is replaced by the following: ‘In local routine report and local special report:’; (iv) point (d) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report and local special report, observed present weather phenomena shall be reported in terms of type and characteristics and qualified with respect to intensity, as appropriate.’; — in point (3), the introductory phrase is replaced by the following: ‘In local routine report, local special report and METAR, the following characteristics of present weather phenomena, as necessary, shall be reported using their respective abbreviations and relevant criteria, as appropriate:’; — in point (4), the introductory phrase is replaced by the following: ‘In local routine report, local special report and METAR:’; (v) point (e) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the height of cloud base shall be reported in steps of 100 ft (30 m) up to 10 000 ft (3 000 m) and in steps of 1 000 ft (300 m) above 10 000 ft (3 000 m).’; — in point (3), the introductory phrase is replaced by the following: ‘In local routine report and local special report:’; (vi) point (f) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the air temperature and the dew-point temperature shall be reported in steps of whole degrees Celsius.’; — point (3) is replaced by the following: ‘(3) In local routine report, local special report and METAR, a temperature below 0 °C shall be identified.’; (vii) point (g) is amended as follows: — point (1) is replaced by the following: ‘(1) In local routine report, local special report and METAR, the QNH and QFE shall be computed in tenths of hectopascals and reported therein in steps of whole hectopascals, using four digits.’; — in point (3), the introductory phrase is replaced by the following: ‘In local routine report and local special report:’; (n) point MET.TR.210 is amended as follows: (i) point (a)(3)(i) is replaced by the following: ‘(i) 2 minutes for local routine report and local special report and for wind displays in ATS units;’; (ii) point (c)(4)(ii)(A) is replaced by the following: ‘(A) 1 minute for local routine report and local special report and for RVR displays in ATS units;’; (o) point MET.TR.215 is amended as follows: (i) point (e)(5) is replaced by the following: ‘(5) SIGMET, and, when issued, AIRMET and appropriate special air-reports relevant to the whole route;’; (ii) point (g) is replaced by the following: ‘(g) When forecasts of upper-wind and upper-air temperature listed under point MET.OR.275(a)(1) are supplied in chart form, they shall be fixed-time prognostic charts for flight levels as specified in point MET.TR.275(b)(3). When forecasts of SIGWX phenomena listed under point MET.OR.275(a)(2) are supplied in chart form, they shall be fixed-time prognostic charts for an atmospheric layer limited by flight levels as specified in points MET.TR.275(c) and MET.TR.275(d).’; (p) point MET.TR.220 is amended as follows: (i) point (c) is replaced by the following: ‘(c) The period of validity of a routine TAF shall be either 9 or 24 or 30 hours, unless otherwise prescribed by the competent authority taking into account the traffic requirements for aerodromes with hours of operation of less than 9 hours. TAF shall be filed for transmission not earlier than 1 hour before the commencement of their period of validity.’; (ii) point (d) is replaced by the following: ‘(d) TAF, if disseminated in digital form, shall be: (1) formatted in accordance with a globally interoperable information exchange model and shall use geography markup language (GML); (2) accompanied by the appropriate metadata.’; (iii) in point (g), points (1) and (2) are replaced by the following: ‘(1) a 30 % or 40 % probability of alternative meteorological conditions exists during a specific forecast time period; or (2) a 30 % or 40 % probability of temporary fluctuations in meteorological conditions exists during a specific forecast time period.’; (q) points MET.TR.250 and MET.TR.255 are replaced by the following: ‘MET.TR.250 SIGMET (a) The content and order of elements in a SIGMET shall be in accordance with the template shown in Appendix 5A. (b) SIGMET shall consist of three types: (1) SIGMET for en-route weather phenomena other than volcanic ash or tropical cyclones; (2) SIGMET for volcanic ash; (3) SIGMET for tropical cyclones. (c) The sequence number of SIGMET shall consist of three characters comprising one letter and two numbers. (d) Only one of the phenomena listed in Appendix 5A shall be included in a SIGMET, using the appropriate abbreviations and the following threshold value of surface wind speed of 34 kt (17 m/s) or more for tropical cyclone. (e) SIGMET concerning thunderstorms or a tropical cyclone shall not include references to associated turbulence and icing. (f) SIGMET, if disseminated in digital form, shall be: (1) formatted in accordance with a globally interoperable information exchange model and shall use geography markup language (GML); (2) accompanied by the appropriate metadata. MET.TR.255 AIRMET (a) The content and order of elements in an AIRMET shall be in accordance with the template shown in Appendix 5A. (b) The sequence number referred to in the template in Appendix 5 shall correspond to the number of AIRMET issued for the flight information region since 00.01 UTC on the day concerned. (c) Only one of the phenomena in Appendix 5A shall be included in an AIRMET, using the appropriate abbreviations and the following threshold values, when the phenomenon is below flight level 100, or below flight level 150 in mountainous areas, or higher, where necessary: (1) widespread surface wind speed above 30 kt (15 m/s) with relevant direction and units; (2) widespread areas affected by reduction of visibility to less than 5 000 m, including the weather phenomenon causing the reduction of visibility; (3) widespread areas of broken or overcast cloud with height of base less than 1 000 ft (300 m) above ground level. (d) AIRMET concerning thunderstorms or cumulonimbus clouds shall not include references to associated turbulence and icing. (e) AIRMET, if disseminated in digital form, shall be: (1) formatted in accordance with a globally interoperable information exchange model and shall use geography markup language (GML); (2) accompanied by the appropriate metadata.’ ; (r) point MET.TR.260(c) is replaced by the following: ‘(c) When the competent authority has determined that the density of traffic operating below flight level 100 warrants the issuance of an AIRMET, the area forecasts shall be issued to cover the layer between the ground and flight level 100, or up to flight level 150 in mountainous areas, or higher, where necessary, and shall contain information on en-route weather phenomena hazardous to low-level flights, in support of the issuance of the AIRMET and the additional information required for low-level flights.’; (s) point MET.TR.265 is replaced by the following: ‘MET.TR.265 Volcanic ash advisory centre responsibilities (a) The advisory information on volcanic ash shall be issued in abbreviated plain language and in accordance with the template shown in Appendix 6. When no abbreviations are available, English plain language text, to be kept to a minimum, shall be used. (b) Volcanic ash advisory, if disseminated in digital form, shall be: (1) formatted in accordance with a globally interoperable information exchange model and shall use geography markup language (GML); (2) accompanied by the appropriate metadata. (c) Volcanic ash advisory information, when prepared in graphical format, shall be issued using the portable network graphics (PNG) format.’; (t) in point MET.TR.270, the following points (c) and (d) are added: ‘(c) Tropical cyclone advisory, if disseminated in digital form, shall be: (1) formatted in accordance with a globally interoperable information exchange model and shall use geography markup language (GML); (2) accompanied by the appropriate metadata. (d) Tropical cyclone advisory information, when prepared in graphical format, shall be issued using the portable network graphics (PNG) format.’; (u) point MET.TR.275(b)(3) is amended as follows: (i) points (i), (ii) and (iii) are replaced by the following: ‘(i) wind data for flight levels 50 (850 hPa), 80 (750 hPa), 100 (700 hPa), 140 (600 hPa), 180 (500 hPa), 210 (450 hPa), 240 (400 hPa), 270 (350 hPa), 300 (300 hPa), 320 (275 hPa), 340 (250 hPa), 360 (225 hPa), 390 (200 hPa), 410 (175 hPa), 450 (150 hPa), 480 (125 hPa) and 530 (100 hPa); (ii) temperature data for flight levels 50 (850 hPa), 80 (750 hPa), 100 (700 hPa), 140 (600 hPa), 180 (500 hPa), 210 (450 hPa), 240 (400 hPa), 270 (350 hPa), 300 (300 hPa), 320 (275 hPa), 340 (250 hPa), 360 (225 hPa), 390 (200 hPa), 410 (175 hPa), 450 (150 hPa) 480 (125 hPa) and 530 (100 hPa); (iii) humidity data for flight levels 50 (850 hPa), 80 (750 hPa), 100 (700 hPa), 140 (600 hPa) and 180 (500 hPa);’; (ii) point (viii) is replaced by the following: ‘(viii) geopotential altitude data for flight levels 50 (850 hPa), 80 (750 hPa), 100 (700 hPa), 140 (600 hPa), 180 (500 hPa), 210 (450 hPa), 240 (400 hPa), 270 (350 hPa), 300 (300 hPa), 320 (275 hPa), 340 (250 hPa), 360 (225 hPa), 390 (200 hPa), 410 (175 hPa), 450 (150 hPa) 480 (125 hPa) and 530 (100 hPa).’; (v) Appendix 1 is replaced by the following: ‘Appendix 1 Template for METAR 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 METAR are provided in a separate table following this template. Note 2: The explanations for the abbreviations can be found in ICAO Document 8400 ‘Procedures for Air Navigation Services – Abbreviations and Codes (PANS-ABC)’. Element Detailed content Template(s) Examples Identification of the type of report (M) Type of report (M) METAR, METAR COR METAR METAR COR Location indicator (M) ICAO location indicator (M) nnnn YUDO Time of the observation (M) Day and actual time of the observation in UTC (M) nnnnnnZ 221630Z Identification of an automated or missing report (C) Automated or missing report identifier (C) AUTO or NIL AUTO NIL END OF METAR IF THE REPORT IS MISSING. Surface wind (M) Wind direction (M) nnn VRB 24004MPS VRB01MPS (24008KT) (VRB02KT) 19006MPS (19012KT) 00000MPS (00000KT) 140P49MPS (140P99KT) Wind speed (M) [P]nn[n] Significant speed variations (C) G[P]nn[n] 12003G09MPS (12006G18KT) 24008G14MPS (24016G28KT) Units of measurement (M) MPS (or KT) Significant directional variations (C) nnnVnnn — 02005MPS 350V070 (02010KT 350V070) Visibility (M) Prevailing or minimum visibility (M) nnnn C A V O K 0350 CAVOK 7000 9999 0800 Minimum visibility and direction of the minimum visibility (C) nnnn[N] or nnnn[NE] or nnnn[E] or nnnn[SE] or nnnn[S] or nnnn[SW] or nnnn[W] or nnnn[NW] 2000 1200NW 6000 2800E 6000 2800 Runway visual range (C) (¹) Name of the element (M) R R32/0400 R12R/1700 R16L/0650 R16C/0500 R16R/0450 R17L/0450 Runway (M) nn[L]/or nn[C]/or nn[R]/ Runway visual range (M) [P or M]nnnn R14L/P2000 R10/M0050 Runway visual range past tendency (C) U, D or N R12/1100U R26/0550N R20/0800D R12/0700 Present weather (C) Intensity or proximity of present weather (C) – or + — VC Characteristics and type of present weather (M) DZ or RA or SN or SG or PL or DS or SS or FZDZ or FZRA or FZUP or FC (²) or SHGR or SHGS or SHRA or SHSN or SHUP or TSGR or TSGS or TSRA or TSSN or TSUP or UP FG or BR or SA or DU or HZ or FU or VA or SQ or PO or TS or BCFG or BLDU or BLSA or BLSN or DRDU or DRSA or DRSN or FZFG or MIFG or PRFG or// FG or PO or FC or DS or SS or TS or SH or BLSN or BLSA or BLDU or VA RA HZ VCFG +TSRA FG VCSH +DZ VA VCTS –SN MIFG VCBLSA +TSRASN –SNRA DZ FG +SHSN BLSN UP FZUP TSUP FZUP // Cloud (M) Cloud amount and height of cloud base or vertical visibility (M) FEWnnn or SCTnnn or BKNnnn or OVCnnn or FEW///or SCT///or BKN///or OVC///or ///nnn or ////// VVnnn or VV/// NSC or NCD FEW015 VV005 OVC030 VV/// NSC SCT010 OVC020 BKN/// ///015 Cloud type (C) CB or TCU or/// —

BKN009TCU NCD SCT008 BKN025CB BKN025/// Air and dew-point temperature (M) Air and dew-point temperature (M) [M]nn/[M]nn 17/10 02/M08 M01/M10 Pressure values (M) Name of the element (M) Q Q0995 Q1009 Q1022 Q0987 QNH (M) nnnn Supplementary information (C) Recent weather (C) REFZDZ or REFZRA or REDZ or RE[SH]RA or RERASN or RE[SH]SN or RESG or RESHGR or RESHGS or REBLSN or RESS or REDS or RETSRA or RETSSN or RETSGR or RETSGS or RETS or REFC or REVA or REPL or REUP or REFZUP or RETSUP or RESHUP REFZRA RETSRA Wind shear (C) WS Rnn[L] or WS Rnn[C] or WS Rnn[R] or WS ALL RWY WS R03 WS ALL RWY WS R18C Sea–surface temperature and state of the sea or significant wave height (C) W[M]nn/Sn or W[M]nn/Hn[n][n] W15/S2 W12/H75 Trend forecast (O) Change indicator (M) NOSIG BECMG or TEMPO NOSIG BECMG FEW020 TEMPO 25018G25MPS (TEMPO 25036G50KT) BECMG FM1030 TL1130 CAVOK BECMG TL1700 0800 FG BECMG AT1800 9000 NSW BECMG FM1900 0500 +SNRA BECMG FM1100 SN TEMPO FM1130 BLSN TEMPO FM0330 TL0430 FZRA Period of change (C)

FMnnnn and/or TLnnnn or ATnnnn Wind (C)

nnn[P]nn[n][G[P]nn[n]]MPS (or nnn[P]nn[G[P]nn]KT) Prevailing visibility (C)

nnnn C A V O K

Weather phenomenon: intensity (C)

– or + — N S W

TEMPO TL1200 0600 BECMG AT1200 8000 NSW NSC 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

BECMG AT1130 OVC010 TEMPO TL1530 +SHRA BKN012CB Cloud amount and height of cloud base or vertical visibility (C)

FEWnnn or SCTnnn or BKNnnn or OVCnnn VVnnn or VV/// N S C Cloud type (C)

CB or TCU — (¹) To be included if visibility or runway visual range is < 1 500 m; for up to a maximum of four runways. (²) ‘Heavy’ used to indicate ‘tornado’ or ‘waterspout’; ‘moderate’ (no qualifier) to indicate ‘funnel cloud not reaching the ground’ Ranges and resolutions for the numerical elements included in METAR Elements Range Resolution Runway: (no units) 01–36 1 Wind direction: °true 000–360 10 Wind speed: MPS 00–99 1 KT 00–199 (^*1) 1 Visibility: M 0000–0750 50 M 0800–4 900 100 M 5 000–9 000 1 000 M 10 000– 0 (fixed value: 9 999 ) Runway visual range: M 0000–0375 25 M 0400–0750 50 M 0800–2 000 100 Vertical visibility: 30’s M (100’s FT) 000–020 1 Clouds: height of cloud base: 30’s M (100’s FT) 000–099 100-200 1 10 Air temperature; Dew-point temperature: °C –80 – +60 1 QNH: hPa 0850–1 100 1 Sea–surface temperature: °C –10 – +40 1 State of the sea: (no units)

0–9 1 Significant wave height: M 0–999 0,1

State of the runway Runway designator: (no units) — — Runway deposits: (no units) — — Extent of runway contamination: (no units) — — Depth of deposit: (no units) — — Friction coefficient/braking action: (no units) — —’

(¹) There is no aeronautical requirement to report surface wind speeds of 100 kt (50 m/s) or more; however, provision has been made for reporting wind speeds up to 199 kt (99 m/s) for non-aeronautical purposes, as necessary.; (w) Appendices 3 and 4 are replaced by the following: ‘Appendix 3 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 – Abbreviations and Codes (PANS-ABC)’. Element Detailed content Template(s) Examples Identification of the type of forecast (M) Type of forecast (M) TAF or TAF AMD or TAF COR TAF TAF AMD TAF COR Location indicator (M) ICAO location indicator (M) nnnn YUDO Time of issue of forecast (M) Day and time of issue of the forecast in UTC (M) nnnnnnZ 160000Z Identification of a missing forecast (C) Missing forecast identifier (C) NIL NIL END OF TAF IF THE FORECAST IS MISSING Days and period of validity of forecast (M) Days and period of validity of the forecast in UTC (M) nnnn/nnnn 0812/0918 Identification of a cancelled forecast (C) Cancelled forecast identifier (C) CNL CNL END OF TAF IF THE FORECAST IS CANCELLED Surface wind (M) Wind direction (M) nnn or VRB 24004MPS; VRB01MPS (24008KT); (VRB02KT) 19005MPS (19010KT) Wind speed (M) [P]nn[n] 00000MPS (00000KT) 140P49MPS (140P99KT) Significant speed variations (C) G[P]nn[n] 12003G09MPS (12006G18KT) 24008G14MPS (24016G28KT) Units of measurement (M) MPS (or KT) Visibility (M) Prevailing visibility (M) nnnn C A V O K 0350 CAVOK 7000 9000 9999 Weather (C) Intensity of weather phenomena (C) (¹) – 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 RA HZ +TSRA FG –FZDZ PRFG +TSRASN SNRA FG Cloud (M) (²) Cloud amount and height of base or vertical visibility (M) FEWnnn or SCTnnn or BKNnnn or OVCnnn VVnnn or VV/// NSC FEW010 VV005 OVC020 VV/// NSC SCT005 BKN012 Cloud type (C) CB or TCU —

SCT008 BKN025CB Temperature (O) (³) Name of the element (M) TX TX25/1013Z TN09/1005Z TX05/2112Z TNM02/2103Z 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 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[n][G[P]nn[n]]MPS or VRBnnMPS (or nnn[P]nn[G[P]nn]KT or VRBnnKT) TEMPO 0815/0818 25017G25MPS (TEMPO 0815/0818 25034G50KT) TEMPO 2212/2214 17006G13MPS 1000 TSRA SCT010CB BKN020 (TEMPO 2212/2214 17012G26KT 1000 TSRA SCT010CB BKN020) Prevailing visibility (C) nnnn C A V O K BECMG 3010/3011 00000MPS 2400 OVC010 (BECMG 3010/3011 00000KT 2400 OVC010) PROB30 1412/1414 0800 FG Weather phenomenon: intensity (C) – or + — NSW BECMG 1412/1414 RA TEMPO 2503/2504 FZRA TEMPO 0612/0615 BLSN PROB40 TEMPO 2923/3001 0500 FG 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 Cloud amount and height of base or vertical visibility (C) FEWnnn or SCTnnn or BKNnnn or OVCnnn VVnnn or VV/// NSC

FM051230 15004MPS 9999 BKN020 (FM051230 15008KT 9999 BKN020) BECMG 1618/1620 8000 NSW NSC Cloud type (C) CB or TCU —

BECMG 2306/2308 SCT015CB BKN020 (¹) To be included whenever applicable. No qualifier for moderate intensity. (²) Up to four cloud layers. (³) Consisting of up to a maximum of four temperatures (two maximum temperatures and two minimum temperatures). Ranges and resolutions for the numerical elements included in TAF Elements Range Resolution Wind direction: ° true 000–360 10 Wind speed: MPS 00–99 (¹) 1 KT 0–199 (1) 1 Visibility: M 0000–0750 50 M 0800–4 900 100 M 5 000–9 000 1 000 M 10 000 – 0 (fixed value: 9 999 ) Vertical visibility: 30’s M (100’s FT) 000–020 1 Cloud: height of cloud base: 30’s M (100’s FT) 000–099 100–200 1 10 Air temperature (maximum and minimum): °C –80 – +60 1 (¹) There is no aeronautical requirement to report surface wind speeds of 100 kt (50 m/s) or more; however, provision has been made for reporting wind speeds up to 199 kt (99 m/s) for non-aeronautical purposes, as necessary. Appendix 4 Template for wind shear warnings Key: M = inclusion mandatory; C = inclusion conditional, whenever applicable. Note 1: the ranges and resolutions for the numerical elements included in wind shear warnings are shown in Appendix 8. Note 2: the explanations for the abbreviations can be found in ICAO Doc 8400 ‘Procedures for Air Navigation Services – Abbreviations and Codes (PANS-ABC)’ Element Detailed content Template(s) Example Location indicator of the aerodrome (M) Location indicator of the aerodrome nnnn YUCC Identification of the type of message (M) Type of message and sequence number WS WRNG [n]n WS WRNG 1 Time of origin and validity period (M) Day and time of issue and, where applicable, validity period in UTC nnnnnn [VALID TL nnnnnn] or [VALID nnnnnn/nnnnnn] 211230 VALID TL 211330 221200 VALID 221215/221315 IF THE WIND SHEAR WARNING IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE Phenomenon (M) Identification of the phenomenon and its location [MOD] or [SEV] WS IN APCH or [MOD] or [SEV] WS [APCH] RWYnnn or [MOD] or [SEV] WS IN CLIMB-OUT or [MOD] or [SEV] WS CLIMB-OUT RWYnnn or MBST IN APCH or MBST [APCH] RWYnnn or MBST IN CLIMB-OUT or MBST CLIMB-OUT RWYnnn WS APCH RWY12 MOD WS RWY34 WS IN CLIMB-OUT MBST APCH RWY26 MBST IN CLIMB-OUT Observed, reported or forecast phenomenon (M) Identification whether the phenomenon is observed or reported and expected to continue, or forecast REP AT nnnn nnnnnnnn or OBS [AT nnnn] or FCST REP AT 1510 B747 OBS AT 1205 FCST Details of the phenomenon (C) Description of phenomenon causing the issuance of the wind shear warning SFC WIND: nnn/nnMPS (or nnn/nnKT) nnnM (nnnFT)-WIND: nnn/nnMPS (or nnn/nnKT) or nnKMH (or nnKT) LOSS nnKM (or nnNM) FNA RWYnn or nnKMH (or nnKT) GAIN nnKM (or nnNM) FNA RWYnn SFC WIND: 320/5MPS 60M-WIND: 360/13MPS (SFC WIND: 320/10KT 200FT-WIND: 360/26KT) 60KMH LOSS 4KM FNA RWY13 (30KT LOSS 2NM FNA RWY13) OR Cancellation of wind shear warning Cancellation of wind shear warning referring to its identification CNL WS WRNG [n]n nnnnnn/nnnnnn CNL WS WRNG 1 211230/211330;’ (x) Appendix 5 is deleted; (y) the following Appendices 5A and 5B are inserted: ‘Appendix 5A Template for SIGMET and AIRMET Key: M = inclusion mandatory; C = inclusion conditional, whenever applicable; and = = a double line indicates that the text following it shall be placed on the subsequent line. Note:* the ranges and resolutions for the numerical elements included in SIGMET/AIRMET are shown in Appendix 8. Element Detailed content SIGMET template AIRMET template SIGMET Examples AIRMET Examples 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 YUCC YUDD Identification (M) SIGMET or AIRMET identification and sequence number SIGMET nnn AIRMET [n][n]n SIGMET U05 SIGMET I12 AIRMET 2 AIRMET 19 AIRMET B19 Validity period (M) Day-time groups indicating the period of validity in UTC VALID nnnnnn/nnnnnn VALID 010000/010400 VALID 221215/221600 VALID 101520/101800 VALID 251600/252200 VALID 152000/160000 VALID 192300/200300 Location indicator of MWO (M) Location indicator of MWO originating the SIGMET or AIRMET with a separating hyphen nnnn– YUDO– YUSO–

Name of the FIR/CTA (M) Location indicator and name of the FIR/CTA for which the SIGMET/AIRMET is issued nnnn nnnnnnnnnn FIR[/UIR] or nnnn nnnnnnnnnn CTA nnnn nnnnnnnnnn FIR[/n] YUCC AMSWELL FIR YUDD SHANLON FIR/UIR YUDD SHANLON CTA YUCC AMSWELL FIR/2 YUDD SHANLON FIR IF THE SIGMET IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE Phenomenon (M) Description of the phenomenon causing the issuance of SIGMET/AIRMET OBSC TS[GR] EMBD TS[GR] FRQ TS[GR] SQL TS[GR] SFC WIND nnn/nn[n]MPS (or SFC WIND nnn/nn[n]KT) 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 040/40MPS SFC WIND 310/20KT SFC VIS 1500M (BR) ISOL TS ISOL TSGR OCNL TS OCNL TSGR MT OBSC BKN CLD 120/900M BKN CLD 400/3000FT BKN CLD SFC/3000M BKN CLD SFC/ABV10000FT OVC CLD 270/ABV3000M OVC CLD 900/ABV10000FT OVC CLD SFC/3000M OVC CLD SFC/ABV10000FT ISOL CB OCNL CB FRQ CB ISOL TCU OCNL TCU FRQ TCU MOD TURB MOD ICE MOD MTW TC nnnnnnnnnn PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] CB or TC NN 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 VIS nnnnM (nn) ISOL TS[GR] OCNL TS[GR] MT OBSC BKN CLD nnn/[ABV]nnnnM (or BKN CLD nnn/[ABV][n]nnnnFT) or BKN CLD SFC/[ABV]nnnnM (or BKN CLD SFC/[ABV][n]nnnnFT) OVC CLD nnn/[ABV]nnnnM (or OVC CLD nnn/[ABV][n]nnnnFT) or OVC CLD SFC/[ABV]nnnnM (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 Observed or forecast phenomenon (M) Indication whether the information is observed and expected to continue, or forecast OBS [AT nnnnZ] or FCST [AT nnnnZ] OBS OBS AT 1210Z FCST FCST AT 1815Z Location (C) 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]] (⁴) or APRX nnKM WID LINE BTN (or 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]] or ENTIRE FIR/UIR or ENTIRE CTA or WI nnnKM (or nnnNM) OF TC CENTRE 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 APRX 50KM WID LINE BTN N64 W017 – N60 W010 – N57 E010 ENTIRE FIR ENTIRE FIR/UIR ENTIRE CTA WI 400KM OF TC CENTRE WI 250NM OF TC CENTRE Level (C) Flight level or altitude [SFC/]FLnnn or [SFC/]nnnnM (or [SFC/][n]nnnnFT) or FLnnn/nnn or TOP FLnnn or [TOP] ABV FLnnn or [nnnn/]nnnnM (or [[n]nnnn/][n]nnnnFT) or [nnnnM/]FLnnn (or [[n]nnnnFT/]FLnnn) or (¹) TOP [ABV or BLW] FLnnn FL180 SFC/FL070 SFC/3000M SFC/10000FT FL050/080 TOP FL390 ABV FL250 TOP ABV FL100 3000M 2000/3000M 8000FT 6000/12000FT 2000M/FL150 10000FT/FL250 TOP FL500 TOP ABV FL500 TOP BLW FL450 Movement or expected movement (C) (⁵) 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 MOV SE MOV NNW MOV E 40KMH MOV E 20KT MOV WSW 20KT STNR Changes in intensity (C) Expected changes in intensity INTSF or WKN or NC INTSF WKN NC Forecast time (C) (⁵) Indication of the forecast time of phenomenon FCST AT nnnnZ — FCST AT 2200Z — Forecast position (C) (⁵) Forecast position of volcanic ash cloud or the centre of the tropical cyclone or other hazardous phenomena6 at the end of the validity period of the SIGMET 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] (⁴) or APRX 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]] or ENTIRE FIR[/UIR] or ENTIRE CTA or TC CENTRE PSN Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] (¹) or NO VA EXP (²) — 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 APRX 50KM WID LINE BTN N64 W017 – N57 W005 – N55 E010 – N55 E030 ENTIRE FIR ENTIRE FIR/UIR ENTIRE CTA TC CENTRE PSN N2740 W07345 NO VA EXP — Repetition of elements (C) (³) Repetition of elements included in a SIGMET for volcanic ash cloud or tropical cyclone [AND] — AND —

OR 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] (²) CNL AIRMET [n][n]n nnnnnn/nnnnnn CNL SIGMET B04 101200/101600 CNL SIGMET I07 251030/251430 VA MOV TO YUDO FIR CNL AIRMET 05 151520/151800 (¹) Only for SIGMET for tropical cyclones. (²) Only for SIGMET for volcanic ash. (³) To be used for two volcanic ash clouds or two centres of tropical cyclones simultaneously affecting the FIR concerned. (⁴) The number of coordinates shall be kept to a minimum and shall not normally exceed seven. (⁵) The elements ‘forecast time’ and ‘forecast position’ are not to be used in conjunction with the element ‘movement or expected movement’. Note:  severe or moderate icing and severe or moderate turbulence (SEV ICE, MOD ICE, SEV TURB, MOD TURB) associated with thunderstorms, cumulonimbus clouds or tropical cyclones shall not be included. Appendix 5B Template for special air-reports (uplink) Key: M = inclusion mandatory, part of every special air-report (uplink); C = inclusion conditional, whenever applicable; = = a double line indicates that the text following it shall be placed on the subsequent line. Note: the ranges and resolutions for the numerical elements included in special air-reports are shown in Appendix 8. Element Detailed content Template Examples Identification (M) Special air-report (uplink) identification ARS ARS Aircraft Identification (M) Aircraft radiotelephony call sign nnnnnn VA812

Observed phenomenon (M) Description of observed phenomenon causing the issuance of the special air-report TS TSGR SEV TURB SEV ICE SEV MTW HVY SS VA CLD VA [MT nnnnnnnnnn] MOD TURB MOD ICE TSGR SEV TURB SEV ICE SEV MTW HVY SS VA CLD VA VA MT ASHVAL5 MOD TURB MOD ICE Observation time (M) Time of observation of observed phenomenon OBS AT nnnnZ OBS AT 1210Z Location (C) Location (referring to latitude and longitude (in degrees and minutes)) of observed phenomenon NnnnnWnnnnn or NnnnnEnnnnn or SnnnnWnnnnn or SnnnnEnnnnn N2020W07005 S4812E01036 Level (C) Flight level or altitude of observed phenomenon FLnnn or FLnnn/nnn or nnnnM (or [n]nnnnFT) FL390 FL180/210 3000M 12000FT;’ (z) Appendices 6, 7 and 8 are replaced by the following: ‘Appendix 6 Template for advisory for volcanic ash Key: M = inclusion mandatory; O = inclusion optional; = = a double line indicates that the text following it shall be placed on the subsequent line. 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 —Abbreviations and Codes (PANS-ABC)’. Note 3: inclusion of a ‘colon’ after each element heading is mandatory. Note 4: numbers 1 to 18 are included only for clarity and they are not part of the advisory, as shown in the example. Element Detailed content Template(s) Examples 1 Identification of the type of message (M) Type of message VA ADVISORY VA ADVISORY

2 Time of origin (M) Year, month, day, time in UTC DTG: nnnnnnnn/nnnnZ DTG: 20080923/0130Z

3 Name of VAAC (M) Name of VAAC VAAC: nnnnnnnnnnnn VAAC: TOKYO

4 Name of volcano (M) Name and International Association of Volcanology and Chemistry of the Earth’s Interio (IAVCEI) number of volcano VOLCANO: nnnnnnnnnnnnnnnnnnnnnn [nnnnnn] or UNKNOWN or UNNAMED VOLCANO: VOLCANO: KARYMSKY 1000-13 UNNAMED

5 Location of volcano (M) Location of volcano in degrees and minutes PSN: Nnnnn or Snnnn Wnnnnn or Ennnnn or UNKNOWN PSN: PSN: N5403 E15927 UNKNOWN

6 State or region (M) State, or region if ash is not reported over a State AREA: nnnnnnnnnnnnnnnn AREA: RUSSIA

7 Summit elevation (M) Summit elevation in m (or ft) SUMMIT ELEV: nnnnM (or nnnnnFT) SUMMIT ELEV: 1536M

8 Advisory number (M) Advisory number: year in full and message number (separate sequence for each volcano) ADVISORY NR: nnnn/nnnn ADVISORY NR: 2008/4

9 Information source (M) Information source using free text INFO SOURCE: Free text up to 32 characters INFO SOURCE: MTSAT-1R KVERT KEMSD

10 Colour code (O) Aviation colour code AVIATION COLOUR CODE: RED or ORANGE or YELLOW or GREEN or UNKNOWN or NOT GIVEN or NIL AVIATION COLOUR CODE: RED

11 Eruption details (M) Eruption details (including date/time of eruption(s)) ERUPTION DETAILS: Free text up to 64 characters or UNKNOWN ERUPTION DETAILS: ERUPTION AT 20080923/0000Z FL300 REPORTED

12 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 OBS VA DTG: 23/0100Z

13 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]MPS (or KT) (²) or WIND FLnnn/nnn VRBnnMPS (or KT) or WIND SFC/FLnnn nnn/nn[n]MPS (or KT) or WIND SFC/FLnnn VRBnnMPS (or KT) OBS VA CLD: FL250/300 N5400 E15930 – N5400 E16100 – N5300 E15945 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 FL050/070 180/12MPS

14 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]] (¹) or NO VA EXP or NOT AVBL or NOT PROVIDED 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

15 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]] or NO VA EXP or NOT AVBL or NOT PROVIDED FCST VA CLD +12 HR: 23/1300Z SFC/FL270 N4830 E16130 – N4830 E16600 – N5300 E16600 – N5300 E16130 NO VA EXP NOT AVBL NOT PROVIDED

16 Forecast height and position of the volcanic ash clouds (+ 18 HR) (M) 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]] or NO VA EXP or NOT AVBL or NOT PROVIDED FCST VA CLD +18 HR: 23/1900Z NO VA EXP NOT AVBL NOT PROVIDED

17 Remarks (M) Remarks, as necessary RMK: Free text up to 256 characters or NIL RMK: LATEST REP FM KVERT (0120Z) INDICATES ERUPTION HAS CEASED. TWO DISPERSING VA CLD ARE EVIDENT ON SATELLITE IMAGERY NIL

18 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 NXT ADVISORY: 20080923/0730Z NO LATER THAN nnnnnnnn/nnnnZ NO FURTHER ADVISORIES WILL BE ISSUED BY nnnnnnnn/nnnnZ (¹) Up to 4 selected layers. (²) If volcanic ash cloud is reported (e.g. AIREP) but not identifiable from the satellite data. Appendix 7 Template for advisory for tropical cyclones Key: = = a double line indicates that the text following it shall 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 – Abbreviations and Codes (PANS-ABC). Note 3: all the elements are mandatory. Note 4: inclusion of a ‘colon’ after each element heading is mandatory. Note 5: numbers 1 to 19 are included only for clarity and they are not part of the advisory, as shown in the example. Element Detailed content Template(s) Examples 1 Identification of the type of message Type of message TC ADVISORY

TC ADVISORY

2 Time of origin Year, month, day and time in UTC of issue DTG: nnnnnnnn/nnnnZ DTG: 20040925/1600Z

3 Name of TCAC Name of TCAC (location indicator or full name) TCAC: nnnn or nnnnnnnnnn TCAC: TCAC: YUFO MIAMI

4 Name of tropical cyclone Name of tropical cyclone or ‘NN’ for unnamed tropical cyclone TC: nnnnnnnnnnnn or NN TC: GLORIA

5 Advisory number Advisory number (starting with ‘01’ for each tropical cyclone) NR: nn NR: 01

6 Position of the centre Position of the centre of the tropical cyclone (in degrees and minutes) PSN: Nnn[nn] or Snn[nn] Wnnn[nn] or Ennn[nn] PSN: N2706 W07306

7 Direction and speed of movement Direction and speed of movement given in 16 compass points and km/h (or kt), respectively, or moving slowly (< 6 km/h (3 kt)) 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 SLW or STNR MOV: NW 20KMH

8 Central pressure Central pressure (in hPa) C: nnnHPA C: 965HPA

9 Maximum surface wind Maximum surface wind near the centre (mean surface wind over 10 minutes, in m/s (or kt)) MAX WIND: nn[n]MPS (or nn[n]KT) MAX WIND: 22MPS

10 Forecast of centre position (+ 6 HR) Day and time (in UTC) (6 hours from the DTG given in Item 2); 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] FCST PSN +6 HR: 25/2200Z N2748 W07350

11 Forecast of maximum surface wind (+ 6 HR) Forecast of maximum surface wind (6 hours after the DTG given in Item 2) FCST MAX WIND +6 HR: nn[n]MPS (or nn[n]KT) FCST MAX WIND +6 HR: 22MPS

12 Forecast of centre position (+ 12 HR) Day and time (in UTC) (12 hours from the DTG given in Item 2); 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] FCST PSN +12 HR: 26/0400Z N2830 W07430

13 Forecast of maximum surface wind (+ 12 HR) Forecast of maximum surface wind (12 hours after the DTG given in Item 2) FCST MAX WIND +12 HR: nn[n]MPS (or nn[n]KT) FCST MAX WIND +12 HR: 22MPS

14 Forecast of centre position (+ 18 HR) Day and time (in UTC) (18 hours from the DTG given in Item 2); 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] FCST PSN +18 HR: 26/1000Z N2852 W07500

15 Forecast of maximum surface wind (+ 18 HR) Forecast of maximum surface wind (18 hours after the DTG given in Item 2) FCST MAX WIND +18 HR: nn[n]MPS (or nn[n]KT) FCST MAX WIND +18 HR: 21MPS

16 Forecast of centre position (+ 24 HR) Day and time (in UTC) (24 hours a day and seven days a week from the DTG given in Item 2); 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] FCST PSN +24 HR: 26/1600Z N2912 W07530

17 Forecast of maximum surface wind (+ 24 HR) Forecast of maximum surface wind (24 hours a day and seven days a week after the DTG given in Item 2) FCST MAX WIND +24 HR: nn[n]MPS (or nn[n]KT) FCST MAX WIND +24 HR: 20MPS

18 Remarks Remarks, as necessary RMK: Free text up to 256 characters or NIL RMK: NIL

19 Expected time of issuance of next advisory Expected year, month, day and time (in UTC) of issuance of next advisory NXT MSG: [BFR] nnnnnnnn/nnnnZ or NO MSG EXP NXT MSG: 20040925/2000Z Appendix 8 Ranges and resolutions for the numerical elements included in volcanic ash advisory, tropical cyclone advisory, SIGMET, AIRMET, aerodrome warning and wind shear warning Elements Range Resolution Summit elevation: M 000–8 100 1 FT 000–27 000 1 Advisory number: for VA (index) (¹) 000–2 000 1 for TC (index) (¹) 00–99 1 Maximum surface wind: MPS 00–99 1 KT 00–199 1 Central pressure: hPa 850–1 050 1 Surface wind speed: MPS 15–49 1 KT 30–99 1 Surface visibility: M 0000–0750 50 M 0800–5 000 100 Cloud: height of base: M 000–300 30 FT 000–1 000 100 Cloud: height of top: M 000–2 970 30 M 3 000–20 000 300 FT 000–9 900 100 FT 10 000–60 000 1 000 Latitudes: ° (degrees) 00–90 1 (minutes) 00–60 1 Longitudes: ° (degrees) 000–180 1 (minutes) 00–60 1 Flight levels:

000–650 10 Movement: KMH 0–300 10 KT 0–150 5’ (¹) Non-dimensional.;