afi met bulletins exchange (ambex) handbook - ICAO

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AFI Regional SIGMET Guide Page4/60 TABLE OF CONTENTS 1. INTRODUCTION ..................................................................................................... 5 2. RESPONSIBILITIES AND COORDINATION ..................................................... 6 2.1 General ............................................................................................................ 6 2.2 Meteorological Watch Office - responsibilities and procedures related to SIGMET 6 2.3 Responsibilities of ATS units ......................................................................... 8 2.4 Responsibilities of pilots ................................................................................. 9 2.5 Coordination between MWOs and the TCACs and VAACs .......................... 9 3. PROCEDURES FOR PREPARATION OF SIGMET INFORMATION .......... 10 3.1 General .......................................................................................................... 10 3.2 Types of SIGMET ........................................................................................ 10 3.3 Structure of the SIGMET message ............................................................... 10 3.4 Format of SIGMET ....................................................................................... 11 3.4.1 WMO Header ................................................................................................................ 11 3.4.2 First line of SIGMET .................................................................................................... 12 3.4.3 Format of the meteorological part of SIGMET messages for weather phenomena other than TC and VA ............................................................................................................ 13 3.4.4 Structure of the meteorological part of VA SIGMET .................................................. 16 3.4.5 Structure of the meteorological part of TC SIGMET .................................................. 18 3.4.6 Cancellation of SIGMET .............................................................................................. 21 3.5 Dissemination ............................................................................................... 22 APPENDIX A: Meteorological Watch Offices ...................................................................... 22 APPENDIX B: Tropical Cyclone Advisory Centres ............................................................. 26 APPENDIX C: Volcanic Ash Advisory Centres ................................................................... 28 APPENDIX D: List of the Abbreviations and Code Words Used in SIGMET ..................... 30 APPENDIX E: Meteorological Phenomena to be Reported by SIGMET ............................. 32 APPENDIX F: Standard for Reporting Geographical Coordinates in SIGMET ................... 33 APPENDIX G: Examples ....................................................................................................... 34 APPENDIX H: WMO Headings for SIGMET Bulletins Used by AFI Meteorological Watch Offices (MWO) ......................................................................................................... 37 APPENDIX H1: OPERATIONAL UNITS ............................................................................... 37 APPENDIX I: WMO Headings for Tropical Cyclone and Volcanic Ash Advisory Bulletins (FK And FV) Used by AFI TCAC And VAAC .......................................................... 41 APPENDIX J AFI SIGMET Test Procedures ........................................................................... 43 Ninth Edition September 2007 Amend1/2010
AFIRegional SIGMET Guide Page5/60 1. INTRODUCTION 1.1 The main purpose of this document is to provide guidance for standardization and harmonization of the procedures and formats related to the aeronautical meteorological warnings for hazardous en-route meteorological phenomena, known as SIGMET information. The guidance is complementary to the Annex 3 standards and recommended practices regarding SIGMET and to the SIGMET related provisions of the AFI Basic ANP and FASID, ICAO Doc 7474. 1.2 ICAO provisions concerning the issuance and dissemination of SIGMET information are contained in: - Annex 3 - Meteorological Service for International Air Navigation, Part I, Chapter 3, 3.4 – 3.7, Chapter 7, 7.1, and Part II, Appendix 6; - AFI Basic ANP, Part I and VI, and AFIFASID Table MET 1B, MET 3A and MET 3B; - Annex 11 - Air Traffic Services, Chapter 4, 4.2.1 and Chapter 7, 7.1; - PANS – Air Traffic Management, Doc 4444, Chapter 9, 9.1.3.2; - Regional Supplementary Procedures, Doc 7030, Part 1, 8.2. Additional guidance on the SIGMET procedures is contained in the Manual of Aeronautical Meteorological Practice (Doc 8896), and the Manual on Coordination between Air Traffic Services, Aeronautical Information Services and Aeronautical Meteorological Services (Doc 9377). 1.3 The SIGMET Guide is intended mainly to assist the MWOs in the ICAO African and Indian Ocean (AFIAFI) Region in preparing and disseminating SIGMET information. It provides detailed information on the format of SIGMET messages as specified by Annex 3. The explanations of the format are accompanied by examples based on region-specific meteorological phenomena. The guide also provides information regarding the necessary coordination between the MWOs, the ATS units and the pilots, and their respective responsibilities. 1.4 This document was prepared by the ICAO AFI and ESAF Regional Offices. It is reviewed and updated regularly in order to be kept in line with the relevant ICAO SARPs and regional procedures. This current version incorporates the changes to SIGMET-related provisions included in Amendment 74 to Annex 3 which was approved by ICAO Council on 21 February 2007. ————————— September 2007 Amend1/2010 Ninth Edition
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Appendix A -List of Participants N
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19 Sougue Bissa Chargé d’Activit
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Conc/Dec No. Title of Conclusion/ D
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MET/SG/10 Report - Appendix C INTER
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AMBEX HANDBOOK 7th Ed. 3/58 Amendme
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AMBEX HANDBOOK 7th Ed. 5/58 8. META
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AMBEX HANDBOOK 7th Ed. 7/58 1. INTR
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AMBEX HANDBOOK 7th Ed. 17/58 6. TAF
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ANNEX 1 - AFI MET/SG/10 Report - Ap
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MET/SG/10 Report - Appendix D AFI -
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ANNEX 1 - ASIA/PAC MET/SG/10 Report
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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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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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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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