Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 549

10. To be included in accordance with 1.3, 1.4 and 1.5. Appendix 5 Annex 3 — Meteorological Service for International Air Navigation APP 5-13 7/11/07 5/11/08 No. 74 Table A5-2. Use of change and time indicators in TAF Change or time indicator Time period Meaning FM ndndnhnhnmnm used to indicate a significant change in most weather elements occurring at ndnd day, nhnh hours and nmnm minutes (UTC); all the elements given before “FM” are to be included following “FM” (i.e. they are all superseded by those following the abbreviation) BECMG nd1nd1nh1nh1/nd2nd2nh2nh2 the change is forecast to commence at nd1nd1 day and nh1nh1 hours (UTC) and be completed by nd2nd2 day and nh2nh2 hours (UTC); only those elements for which a change is forecast are to be given following “BECMG”; the time period nd1nd1nh1nh1/nd2nd2nh2nh2 should normally be less than 2 hours and in any case should not exceed 4 hours TEMPO nd1nd1nh1nh1/nd2nd2nh2nh2 temporary fluctuations are forecast to commence at nd1nd1 day and nh1nh1 hours (UTC) and cease by nd2nd2 day and nh2nh2 hours (UTC); only those elements for which fluctuations are forecast are to be given following “TEMPO”; temporary fluctuations should not last more than one hour in each instance, and in the aggregate, cover less than half of the period nd1nd1nh1nh1/nd2nd2nh2nh2 — nd1nd1nh1nh1/nd2nd2nh2nh2 — PROBnn TEMPO nd1nd1nh1nh1/nd2nd2nh2nh2 probability of occurrence (in %) of an alternative value of a forecast element or elements; nn = 30 or nn = 40 only; to be placed after the element(s) concerned probability of occurrence of temporary fluctuations Table A5-3. Ranges and resolutions for the numerical elements included in TAF Element as specified in Chapter 6 Range Resolution Wind direction: ° true 000 – 360 Wind speed: KMH KT 00 – 399* 00 – 199* Visibility: M M M M 0000 – 0800 0800 – 5 000 5 000 – 9 000 9 000 – 9 999 1 000 Vertical visibility: 30’s M (100’s FT) 000 – 020 Cloud: height of cloud base: 30’s M (100’s FT) 000 – 100 Air temperature (maximum and minimum): °C –80 – +60 * There is no aeronautical requirement to report surface wind speeds of 200 km/h (100 kt) or more; however, provision has been made for reporting wind speeds up to 399 km/h (199 kt) for non-aeronautical purposes, as necessary. Annex 3 — Meteorological Service for International Air Navigation Appendix 5 7/11/07 APP 5-14 5/11/08 No. 74 Table A5-4. Template for GAMET Key: M = inclusion mandatory, part of every message; C = inclusion conditional, dependent on meteorological conditions; O = inclusion optional; = = double line indicates that the text following it should be placed on the subsequent line. Element Detailed content Template Examples Location indicator of FIR/CTA (M) ICAO location indicator of the ATS unit serving the FIR or CTA to which the GAMET refers (M) nnnn YUCC1 Identification (M) Message identification (M) GAMET GAMET Validity period (M) Day-time groups indicating the period of validity in UTC (M) VALID nnnnnn/nnnnnn VALID 220600/221200 Location indicator of meteorological office (M) Location indicator of meteorological office originating the message with a separating hyphen (M) nnnn- YUDO-1 Name of the FIR/CTA or part thereof (M) Location indicator and name of the FIR/CTA, or part thereof for which the GAMET is issued (M) nnnn nnnnnnnnnn FIR[/n] [BLW FLnnn] or nnnn nnnnnnnnnn CTA[/n] [BLW FLnnn] YUCC AMSWELL FIR/2 BLW FL120 YUCC AMSWELL FIR Template Element Detailed content Identifier and time Content Location Examples Indicator for the beginning of Section I (M) Indicator to identify the beginning of Section I (M) SECN I SECN I Surface wind (C) Widespread surface wind exceeding 60 km/h (30 kt) SFC WSPD: [nn/nn] [n]nn KMH (or [n]nn KT) [N of Nnn or Snn] or [S of Nnn or Snn] or [W of Wnnn or Ennn] or [E of Wnnn or Ennn] or [nnnnnnnnnn]2 SFC WSPD: 10/12 65 KMH SFC WSPD: 40 KT E OF W110 Surface visibility (C) Widespread surface visibility below 5 000 m including the weather phenomena causing the reduction in visibility SFC VIS: [nn/nn] nnnn M FG or BR or SA or DU or HZ or FU or VA or PO or DS or SS or DZ or RA or SN or SG or IC or FC or GR or GS or PL or SQ SFC VIS: 06/08 3000 M BR N of N51 7/11/07 Appendix 5 Annex 3 — Meteorological Service for International Air Navigation APP 5-15 7/11/07 Template Element Detailed content Identifier and time Content Location Examples Significant weather (C) Significant weather conditions encompassing thunderstorms and heavy sandstorm and duststorm SIGWX: [nn/nn] ISOL TS or OCNL TS or FRQ TS or OBSC TS or EMBD TS or HVY DS or HVY SS or SQL TS or ISOL TSGR or OCNL TSGR or FRQ TSGR or OBSC TSGR or EMBD TSGR or SQL TSGR or VA SIGWX: 11/12 ISOL TS SIGWX: 12/14 SS S OF N35 Mountain obscuration (C) Mountain obscuration MT OBSC: [nn/nn] nnnnnnnnnn2 MT OBSC: MT PASSES S OF N48 Cloud (C) Widespread areas of broken or overcast cloud with height of base less than 300 m (1 000 ft) above ground level (AGL) or above mean sea level (AMSL) and/or any occurrence of cumulonimbus (CB) or towering cumulus (TCU) clouds SIG CLD: [nn/nn] BKN or OVC nnn[n]/nnn[n] M (or nnn[n]/nnn[n] FT) AGL or AMSL ISOL or OCNL or FRQ or OBSC or EMBD CB3 or TCU3 nnn[n]/nnn[n] M (or nnn[n]/nnn[n] FT) AGL or AMSL SIG CLD: 06/09 OVC 800/1100 FT AGL N OF N51 10/12 ISOL TCU 1200/8000 FT AGL Icing (C) Icing (except for that occurring in convective clouds and for severe icing for which a SIGMET message has already been issued) ICE: [nn/nn] MOD FLnnn/nnn or MOD ABV FLnnn or SEV FLnnn/nnn or SEV ABV FLnnn ICE: MOD FL050/080 Turbulence (C) Turbulence (except for that occurring in convective clouds and for severe turbulence for which a SIGMET message has already been issued) TURB: [nn/nn] MOD FLnnn/nnn or MOD ABV FLnnn or SEV FLnnn/nnn or SEV ABV FLnnn TURB: MOD ABV FL090 Mountain wave (C) Mountain wave (except for severe mountain wave for which a SIGMET message has already been issued) MTW: [nn/nn] MOD FLnnn/nnn or MOD ABV FLnnn or SEV FLnnn/nnn or SEV ABV FLnnn MTW: MOD ABV FL080 N OF N63 Annex 3 — Meteorological Service for International Air Navigation Appendix 5 7/11/07 APP 5-16 Template Element Detailed content Identifier and time Content Location Examples SIGMET (C) SIGMET messages applicable to the FIR/CTA concerned or a sub-area thereof, for which the area forecast is valid SIGMET APPLICABLE: n [,n] [,n] SIGMET APPLICABLE: 3,5 or HAZARDOUS WX NIL (C)4 HAZARDOUS WX NIL HAZARDOUS WX NIL Indicator for the beginning of Section II (M) Indicator to identify the beginning of Section II (M) SECN II SECN II Pressure centres and fronts (M) Pressure centres and fronts and their expected movements and developments PSYS: [nn] L [n]nnn HPA or H [n]nnn HPA or FRONT or NIL Nnnnn or Snnnn Wnnnnn or Ennnnn or Nnnnn or Snnnn Wnnnnn or Ennnnn TO Nnnnn or Snnnn Wnnnnn or Ennnnn PSYS: 06 L 1004 HPA N5130 E01000 MOV NE 25KT WKN MOV N or NE or E or SE or S or SW or W or NW nnKMH (nnKT) WKN or NC or INTSF _ Upper winds and temperatures (M) Upper winds and upper-air temperatures for at least the following altitudes: 600, 1 500 and 3 000 m (2 000, 5 000 and 10 000 ft) WIND/T: [n]nnn M (or [n]nnn FT) nnn/[n]nn KMH (or nnn/[n]nn KT) PSnn or MSnn Nnnnn or Snnnn Wnnnnn or Ennnnn or WIND/T: 2000 FT 270/70 KMH PS03 5000 FT 250/80 KMH MS02 10000 FT 240/85 KMH MS11 Cloud (M) Cloud information not included in Section I giving type, height of base and top above ground level (AGL) or above mean sea level (AMSL) CLD: [nn/nn] FEW or SCT or BKN or OVC ST or SC or CU or AS or AC or NS [n]nnn/[n]nnn M (or [n]nnn/[n]nnn FT) AGL or AMSL or NIL [N of Nnn or Snn] or [S of Nnn or Snn] or [W of Wnnn or Ennn] or [E of Wnnn or Ennn] or [nnnnnnnnnn]2 CLD: BKN SC 2500/8000 FT AGL Freezing level (M) Height indication of 0°C level(s) above ground level (AGL) or above mean sea level (AMSL), if lower than the top of the airspace for which the forecast is supplied FZLVL: [ABV] nnnn FT AGL or AMSL FZLVL: 3000 FT AGL Forecast QNH (M) Forecast lowest QNH during the period of validity MNM QNH: [n]nnn HPA MNM QNH: 1004 HPA Appendix 5 Annex 3 — Meteorological Service for International Air Navigation APP 5-17 7/11/07 5/11/08 No. 74 Template Element Detailed content Identifier and time Content Location Examples Sea-surface temperature and state of sea (O) Sea-surface temperature and state of the sea if required by regional air navigation agreement SEA: Tnn HGT [n]n M SEA: T15 HGT 5 M Volcanic eruptions (M) Name of volcano VA: nnnnnnnnnn or NIL VA: ETNA Notes.— 1. Fictitious location. 2. Free text describing well-known geographical locations should be kept to a minimum. 3. The location of the CB and/or TCU should be specified in addition to any widespread areas of broken or overcast cloud as given in the example. 4. When no elements are included in Section I. 7/11/07 Annex 3 — Meteorological Service for International Air Navigation Appendix 5 7/11/07 APP 5-18 5/11/08 No. 74 Example A5-1. TAF TAF for YUDO (Donlon/International)*: TAF YUDO 160000Z 1606/1624 13018KMH 9000 BKN020 BECMG 1606/1608 SCT015CB BKN020 TEMPO 1608/1612 17025G45KMH 1000 TSRA SCT010CB BKN020 FM161230 15015KMH 9999 BKN020 Meaning of the forecast: TAF for Donlon/International* issued on the 16th of the month at 0000 UTC valid from 0600 UTC to 2400 UTC on the 16th of the month; surface wind direction 130 degrees; wind speed 18 kilometres per hour; visibility 9 kilometres, broken cloud at 600 metres; becoming between 0600 UTC and 0800 UTC on the 16th of the month, scattered cumulonimbus cloud at 450 metres and broken cloud at 600 metres; temporarily between 0800 UTC and 1200 UTC on the 16th of the month surface wind direction 170 degrees; wind speed 25 kilometres per hour gusting to 45 kilometres per hour; visibility 1 000 metres in a thunderstorm with moderate rain, scattered cumulonimbus cloud at 300 metres and broken cloud at 600 metres; from 1230 UTC on the 16th of the month surface wind direction 150 degrees; wind speed 15 kilometres per hour; visibility 10 kilometres or more; and broken cloud at 600 metres. * Fictitious location Note.— In this example, the primary units “kilometre per hour” and “metre” were used for wind speed and height of cloud base, respectively. However, in accordance with Annex 5, the corresponding non-SI alternative units “knot” and “foot” may be used instead. Example A5-2. Cancellation of TAF Cancellation of TAF for YUDO (Donlon/International)*: TAF AMD YUDO 161500Z 1606/1624 CNL Meaning of the forecast: Amended TAF for Donlon/International* issued on the 16th of the month at 1500 UTC cancelling the previously issued TAF valid from 0600 UTC to 2400 UTC on the 16th of the month. * Fictitious location Appendix 5 Annex 3 — Meteorological Service for International Air Navigation APP 5-19 7/11/07 Example A5-3. GAMET area forecast YUCC GAMET VALID 220600/221200 YUDO YUCC AMSWELL FIR/2 BLW FL100 SECN I SFC WSPD: 10/12 65 KMH SFC VIS: 06/08 3000 M BR N OF N51 SIGWX: 11/12 ISOL TS SIG CLD: 06/09 OVC 800/1100 FT AGL N OF N51 10/12 ISOL TCU 1200/8000 FT AGL ICE: MOD FL050/080 TURB: MOD ABV FL090 SIGMETS APPLICABLE: 3, 5 SECN II PSYS: 06 L 1004 HPA N5130 E01000 MOV NE 25 KT WKN WIND/T: 2000 FT 270/70 KMH PS03 5000 FT 250/80 KMH MS02 10000 FT 240/85 KMH MS11 CLD: BKN SC 2500/8000 FT AGL FZLVL: 3000 FT AGL MNM QNH: 1004 HPA SEA: T15 HGT 5M VA: NIL Meaning: An area forecast for low-level flights (GAMET) issued for sub-area two of the Amswell* flight information region (identified by YUCC Amswell area control centre) for below flight level 100 by the Donlon/International* meteorological office (YUDO); the message is valid from 0600 UTC to 1200 UTC on the 22nd of the month. Section I: surface wind speeds: between 1000 UTC and 1200 UTC 65 kilometres per hour; surface visibility: between 0600 UTC and 0800 UTC 3 000 metres north of 51 degrees north (due to mist); significant weather phenomena: between 1100 UTC and 1200 UTC isolated thunderstorms without hail; significant clouds: between 0600 UTC and 0900 UTC overcast base 800, top 1 100 feet above ground level north of 51 degrees north; between 1000 UTC and 1200 UTC isolated towering cumulus base 1 200, top 8 000 feet above ground level; icing: moderate between flight level 050 and 080; turbulence: moderate above flight level 090 (at least up to flight level 100); SIGMET messages: 3 and 5 applicable to the validity period and sub-area concerned. Section II: pressure systems: at 0600 UTC low pressure of 1 004 hectopascals at 51.5 degrees north 10.0 degrees east, expected to move north-eastwards at 25 knots and to weaken; winds and temperatures: at 2 000 feet above ground level wind direction 270 degrees; wind speed 70 kilometres per hour, temperature plus 3 degrees Celsius; at 5000 feet above ground level wind direction 250 degrees; wind speed 80 kilometres per hour, temperature minus 2 degrees Celsius; at 10 000 feet above ground level wind direction 240 degrees; wind speed 85 kilometres per hour, temperature minus 11 degrees Celsius; clouds: broken stratocumulus, base 2 500 feet, top 8 000 feet above ground level; freezing level: 3 000 feet above ground level; minimum QNH: 1 004 hectopascals; sea: surface temperature 15 degrees Celsius; and state of sea 5 metres; volcanic ash: nil. * Fictitious locations ___________________ ANNEX 3 APP 6-1 7/11/07 APPENDIX 6. TECHNICAL SPECIFICATIONS RELATED TO SIGMET AND AIRMET INFORMATION, AERODROME WARNINGS AND WIND SHEAR WARNINGS AND ALERTS (See Chapter 7 of this Annex.) Note.— Data type designators to be used in abbreviated headings for SIGMET, AIRMET, tropical cyclone and volcanic ash advisory messages are given in WMO Publication No. 386, Manual on the Global Telecommunication System.

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