afi met bulletins exchange (ambex) handbook - ICAO

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AMBEX HANDBOOK 7th Ed. 20/58 6.3.5 AMBEX centres should transmit the TAF bulletins compiled by them, as well as TAF bulletins received from other AMBEX centres, as necessary, to the NOCs and/or other offices in the States in their area of responsibility, as agreed between the AMBEX centre and the meteorological authorities of the States concerned. 6.3.6 A TAF message received by a AMBEX centre after the scheduled transmission of the corresponding bulletin is a delayed TAF. The AMBEX centre should then prepare an AMBEX bulletin of all TAFs received. If a TAF is not available, for any reason, at the cut-off time, the latest still valid TAF for the missing station may be included instead. 6.3.7 Amended TAF (TAF AMD) received from an AMO or NOC should be distributed with no delay as an amended TAF bulletin to all recipients in the distribution list for the TAF bulletin, to which the originating aerodrome belongs. The optional BBB group should be used in the WMO bulletin heading accordingly. 6.3.8 Each BCC should establish a cut-off time for the reception of AMBEX messages from stations within its AOR. The cut-off time should be about twenty minutes after the times of preparation of TAFs shown in column 6 of Appendix B. 6.3.9 A new tape, containing the address, origin and WMO abbreviated heading of the bulletin, is prepared. The bulletin is then assembled by combining this new tape with the text portions of the AMBEX messages received and adding a normal ending. Details of the WMO abbreviated headings that should be used by BCCs in their bulletins are given in Appendix C. 6.3.10 AMBEX centres should disseminate their own bulletins to the stations listed in column 9 of Appendix B. This dissemination should take place some thirty minutes after the time for preparation of the TAFs shown in column 6 of Appendix B. 6.3.11 No addresses other than those listed in column 10 of Appendix B should be used except in response to request messages. 6.3.12 The following is an outline of the procedures to be followed by AMBEX centres in the preparation of AMBEX bulletins. Parts of Bulletin Resulting Page Copy a) Priority Indicator and GG DAZZYPYX FAJSYMYX FCZZXLBX Address GOOZZSNGX HAZZYPYX HEZZYPYX HKZZYPBX b) Date and Time of Filing 281030 DRRNYPYX and Originator c) WMO Abbreviated Heading FTA033 DRRN 281000 (see Appendix B) d) TAFs received from the TAF DRRN 281010Z 2812/2912 24003KT 8000 stations in the AOR, in BKN020 BECMG 2813/2815 SCT018CB BKN020 order shown in column 2 TEMPO 2817/2820 VRB03 TSRA SCT015CB of Appendix B BKN020 FM290600 16008KT 9999 BKN020 BKN120 =
AMBEX HANDBOOK 7th Ed. 21/58 TAF DGAA 281020Z 2812/2912 13010KT 9000 BKN020 TEMPO 2816/2820 3000 DZ BKN005 OVC050 FM290400 17010KT 9999 BKN015 BNK100 = TAF DBBB 281030Z 2812/2912 26008KT 9000 BKN020 PROB30 TEMPO 2815/2818 3000 TSRA BKN005 SCT020CB FM290000 24006KT 9000 BKN010 = TAF DNKN 281030Z 2812/2912 VRB03KT 9999 BKN015 PROB30 TEMPO 2813/2816 2000 FG BKN003 BKN010 FM282000 24006KT 9000 BKN020 = TAF DNMM 281028Z 2812/2912 24006KT 9000 BKN020 PROB30 TEMPO 2814/2816 3000 DZ BKN005 BKN010= TAF DXXX 281030Z 2812/2912 26008KT 9999 BKN015 BECMG 2815/2817 SCT015CB BKN020 TEMPO 2818/2820 22020G35KT 2000 TSRA SCT010CB BKN020 FM282030 26006 9999 BKN020 BKN100 = TAF FTTJ 281030Z 2812/2912 12006KT CAVOK TEMPO 2818/2820 SCT030 = TAF DFFD 281030Z 2812/2912 20004KT 9999 BKN020 BECMG 2814/2816 SCT018CB BKN020 TEMPO 2816/2818 24010KT TSRA SCT015CB BKN020 FM290600 22008KT 9999 BKN020 BKN100 = e) Normal Ending NNNN. 6.3.13 TAFs received by an AMBEX Centre after the cut-off time, and which have still at least 6hour validity left, should be included in one or more bulletins of delayed TAFs. The WMO Abbreviated Heading for such bulletins should be the same as for the bulletin from which the TAFs are missing, with the addition of the optional groups RRA, RRB, RRC etc. (to indicate the first, second, third etc. bulletin of delayed TAFs), in accordance with Appendix C, paragraph 4. 6.3.14 When an AMBEX centre receives amended TAFs from originating stations or NOCs, it should prepare bulletins of amended TAFs. The WMO abbreviated heading for such bulletins should be the same as for the bulletin containing the original TAF, with the addition of the optional groups AAA, AAB, AAC etc. (to indicate the first, second, third etc. amendment to TAFs in the original bulletin), in accordance with Appendix C, paragraph 4. 6.3.15 "NIL" to indicate a missing TAF should not be used in AMBEX bulletins. 6.3.16 If an AMBEX centre finds it impossible to meet the specified filing times due to systematic late receipt of TAFs from originating stations or NOCs, it should reach an agreement with these stations on another filing time for their AMBEX messages and thereafter propose to the Secretary of the AFI MET/SG that this filing time be incorporated in the Handbook. 6.3.17 In addition to its own AMBEX bulletins, each BCC should distribute bulletins received from other BCCs to the MET offices within its originating stations or NOCs. 6.4 Format and content of TAF bulletins 6.4.1 Issuance and period of validity:
Page 1 and 2: Appendix A -List of Participants N
Page 3 and 4: 19 Sougue Bissa Chargé d’Activit
Page 5 and 6: Conc/Dec No. Title of Conclusion/ D
Page 7 and 8: Conc/Dec No. 13) APIRG Con. 14/42 1
Page 9 and 10: Conc/Dec No. 21) APIRG Con16/58 22)
Page 11 and 12: Conc/Dec No. 29) APIRG/17 Concl. 17
Page 13 and 14: Conc/Dec No. 36) APIRG/17 Concl. 17
Page 15 and 16: MET/SG/10 Report - Appendix C INTER
Page 17 and 18: AMBEX HANDBOOK 7th Ed. 3/58 Amendme
Page 19 and 20: AMBEX HANDBOOK 7th Ed. 5/58 8. META
Page 21 and 22: AMBEX HANDBOOK 7th Ed. 7/58 1. INTR
Page 23 and 24: AMBEX HANDBOOK 7th Ed. 9/58 2.4.2 U
Page 25 and 26: AMBEX HANDBOOK 7th Ed. 11/58 3. DEF
Page 27 and 28: AMBEX HANDBOOK 7th Ed. 13/58 4.3.1.
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Page 31 and 32: AMBEX HANDBOOK 7th Ed. 17/58 6. TAF
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Page 41 and 42: AMBEX HANDBOOK 7th Ed. 27/58 9. EXC
Page 43 and 44: AMBEX HANDBOOK 7th Ed. 29/58 11. IN
Page 45 and 46: AMBEX HANDBOOK 7th Ed. 31/58 inform
Page 47 and 48: AMBEX HANDBOOK 7th Ed. 33/58 AMBEX
Page 55 and 56: AMBEX HANDBOOK 7th Ed. 41/58 NOC AA
Page 57 and 58: AMBEX HANDBOOK 7th Ed. 43/58 with t
Page 59 and 60: AMBEX HANDBOOK 7th Ed. 45/58 APPEND
Page 61 and 62: AMBEX HANDBOOK 7th Ed. 47/58 WMO HE
Page 63 and 64: AMBEX HANDBOOK 7th Ed. 49/58 MWO Lo
Page 69 and 70: AMBEX HANDBOOK 7th Ed. 55/58 Vbul c
Page 71 and 72: AMBEX HANDBOOK 7th Ed. 57/58 TABLE
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Page 75 and 76: ANNEX 1 - AFI MET/SG/10 Report - Ap
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MET/SG/10 Report - Appendix D ASIA/
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MET/SG/10 Report - Appendix D Name
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MET/SG/10 Report - Appendix D CAR/S
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MET/SG/10 Report - Appendix D EUR -
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MET/SG/10 Report - Appendix D MID -
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MET/SG/10 Report - Appendix D NAM -
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ANNEX 1 - NAT MET/SG/10 Report - Ap
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ANNEX 2 - AFI MET/SG/10 Report - Ap
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ANNEX 2 - EUR MET/SG/10 Report - Ap
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MET/SG/10 Report - Appendix D State
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ANNEX 2 - CAR/SAM MET/SG/10 Report
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ANNEX 2 - NAM MET/SG/10 Report - Ap
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ANNEXE 3 MET/SG/10 Report - Appendi
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MET/SG/10 Report - APPENDIX E INTER
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AFIAFI Regional SIGMET Guide Page3/
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AFIRegional SIGMET Guide Page5/60 1
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AFI Regional SIGMET Guide Page 7/60
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AFI Regional SIGMET Guide Page22/60
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ICAO Location Indicator SA SP FC FT
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Appendix H SUMMARY OF OPERATIONAL S
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STAT E CAMEROON CAPE VERDE Requirem
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STATE CHAD COMOROS Requirements Ide
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STATE DJIBOUTI Requirements 1 Ident
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STATE THE GAMBIA Requirements Ident
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STATE GHANA GUINEA Requirements Ide
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STATE GUINEA BISSAU LESOTHO Require
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STATE LIBERIA Requirements Identifi
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STAT E MAURITANIA NIGER Requirement
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STA TE Requirements 1 Identificatio
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ETAT 1 SAO TOME SÉNÉGAL Besoins I
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ETAT 1 SIERRA LEONE SOMA LIA SWAZI
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APIRG/15-WP/13 27/06/05 24 EXPLANAT
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c) Review and update the AFI Volcan
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Page 2 of 29 Volcanic Ash Contingen
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. Page 6 of 29 Volcanic Ash Conting
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Page 10 of 29 Volcanic Ash Continge
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3.6 Risk Tolerability Page 20 of 29
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No. HAZARD Descriptio n (additional
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F) SFC G) FL350) Page 26 of 29 Volc
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World area forecast system (WAFS) (
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Terms of Reference Appendix M: Term
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