{
  "url": "https://openlegislation.uk/eu-regulation-2017-373/annex-V/appendix-6",
  "json_url": "https://openlegislation.uk/eu-regulation-2017-373/annex-V/appendix-6.json",
  "legislation": "eur/2017/373",
  "legislation_title": "Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 laying down common requirements for providers of air traffic management/air navigation services and other air traffic management network functions and their oversight, repealing Regulation (EC) No 482/2008, Implementing Regulations (EU) No 1034/2011, (EU) No 1035/2011 and (EU) 2016/1377 and amending Regulation (EU) No 677/2011 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2017-373",
  "path": "annex/V/appendix/6",
  "kind": "appendix",
  "number": "6",
  "heading": "Template for advisory for volcanic ash",
  "text": "Key:\nM inclusion mandatory;\nO inclusion optional;\n= a double line indicates that the text following it shall be placed on the subsequent line.\nNote 1:\nthe ranges and resolutions for the numerical elements included in volcanic ash advisory are shown in Appendix 8.\nNote 2:\nthe explanations for the abbreviations can be found in ICAO Doc 8400 ‘ Procedures for Air Navigation Services —Abbreviations and Codes (PANS-ABC) ’ .\nNote 3:\ninclusion of a ‘ colon ’ after each element heading is mandatory.\nNote 4:\nnumbers 1 to 18 are included only for clarity and they are not part of the advisory, as shown in the example.\nUp to 4 selected layers.\nIf volcanic ash cloud is reported (e.g. AIREP) but not identifiable from the satellite data.\nElement\nDetailed content\nTemplate(s)\nExamples\n1\nIdentification of the type of message (M)\nType of message\nVA ADVISORY\nVA ADVISORY\n2\nTime of origin (M)\nYear, month, day, time in UTC\nDTG:\nnnnnnnnn/nnnnZ\nDTG:\n20080923 /0130Z\n3\nName of VAAC (M)\nName of VAAC\nVAAC:\nnnnnnnnnnnnn\nVAAC:\nTOKYO\n4\nName of volcano (M)\nName and International Association of Volcanology and Chemistry of the Earth’s Interio (IAVCEI) number of volcano\nVOLCANO:\nnnnnnnnnnnnnnnnnnnnnnn [nnnnnn]\nor\nUNKNOWN or\nUNNAMED\nVOLCANO:\nVOLCANO:\nKARYMSKY 1000-13\nUNNAMED\n5\nLocation of volcano (M)\nLocation of volcano in degrees and minutes\nPSN:\nNnnnn or Snnnn\nWnnnnn or Ennnnn\nor\nUNKNOWN\nPSN:\nPSN:\nN5403 E15927\nUNKNOWN\n6\nState or region (M)\nState, or region if ash is not reported over a State\nAREA:\nnnnnnnnnnnnnnnnn\nAREA:\nRUSSIA\n7\nSummit elevation (M)\nSummit elevation in m (or ft)\nSUMMIT ELEV:\nnnnnM (or nnnnnFT)\nSUMMIT ELEV:\n1536M\n8\nAdvisory number (M)\nAdvisory number: year in full and message number (separate sequence for each volcano)\nADVISORY NR:\nnnnn/nnnn\nADVISORY NR:\n2008/4\n9\nInformation source (M)\nInformation source using free text\nINFO SOURCE:\nFree text up to 32 characters\nINFO SOURCE:\nMTSAT-1R KVERT KEMSD\n10\nColour code (O)\nAviation colour code\nAVIATION COLOUR CODE:\nRED or ORANGE or YELLOW or GREEN or UNKNOWN or NOT GIVEN or NIL\nAVIATION COLOUR CODE:\nRED\n11\nEruption details (M)\nEruption details (including date/time of eruption(s))\nERUPTION DETAILS:\nFree text up to 64 characters or\nUNKNOWN\nERUPTION DETAILS:\nERUPTION AT 20080923 /0000Z FL300 REPORTED\n12\nTime of observation (or estimation) of volcanic ash clouds (M)\nDay and time (in UTC) of observation (or estimation) of volcanic ash clouds\nOBS (or EST) VA DTG:\nnn/nnnnZ\nOBS VA DTG:\n23/0100Z\n13\nObserved or estimated volcanic ash clouds (M)\nHorizontal (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;\nMovement of the observed or estimated volcanic ash clouds\nOBS VA CLD or\nEST VA CLD:\nTOP FLnnn or SFC/FLnnn or\nFLnnn/nnn\n[nnKM WID LINE BTN (nnNM WID LINE BTN)]\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn][–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]]\nMOV N nnKMH (or KT) or\nMOV NE nnKMH (or KT) or\nMOV E nnKMH (or KT) or\nMOV SE nnKMH (or KT) or\nMOV S nnKMH (or KT) or\nMOV SW nnKMH (or KT) or\nMOV W nnKMH (or KT) or\nMOV NW nnKMH (or KT)\nor\nVA NOT IDENTIFIABLE FM SATELLITE DATA\nWIND FLnnn/nnn\nnnn/nn[n]MPS (or KT) or\nWIND FLnnn/nnn\nVRBnnMPS (or KT) or\nWIND SFC/FLnnn\nnnn/nn[n]MPS (or KT) or\nWIND SFC/FLnnn\nVRBnnMPS (or KT)\nOBS VA CLD:\nFL250/300\nN5400 E15930 –\nN5400 E16100 –\nN5300 E15945\nMOV SE 20KT SFC/FL200\nN5130 E16130 –\nN5130 E16230 –\nN5230 E16230 –\nN5230 E16130\nMOV SE 15KT\nTOP FL240 MOV W 40KMH\nVA NOT IDENTIFIABLE FM SATELLITE DATA\nWIND FL050/070\n180/12MPS\n14\nForecast height and position of the volcanic ash clouds\n(+ 6 HR) (M)\nDay and time (in UTC) (6 hours from the ‘ Time of observation (or estimation) of volcanic ash clouds ’ given in Item 12);\nForecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time\nFCST VA CLD\n+6 HR:\nnn/nnnnZ\nSFC or FLnnn/[FL]nnn\n[nnKM WID LINE BTN (nnNM WID LINE BTN)]\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn][–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]]\nor\nNO VA EXP\nor\nNOT AVBL\nor\nNOT PROVIDED\nFCST VA CLD\n+6 HR:\n23/0700Z\nFL250/350\nN5130 E16030 –\nN5130 E16230 –\nN5330 E16230 –\nN5330 E16030\nSFC/FL180\nN4830 E16330 –\nN4830 E16630 –\nN5130 E16630 –\nN5130 E16330\nNO VA EXP\nNOT AVBL\nNOT PROVIDED\n15\nForecast height and position of the volcanic ash clouds (+ 12 HR) (M)\nDay and time (in UTC) (12 hours from the ‘ Time of observation (or estimation) of volcanic ash clouds ’ given in Item 12);\nForecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time\nFCST VA CLD\n+12 HR:\nnn/nnnnZ\nSFC or FLnnn/[FL]nnn\n[nnKM WID LINE BTN (nnNM WID LINE BTN)]\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]]\nor\nNO VA EXP\nor\nNOT AVBL\nor\nNOT PROVIDED\nFCST VA CLD\n+12 HR:\n23/1300Z\nSFC/FL270\nN4830 E16130 –\nN4830 E16600 –\nN5300 E16600 –\nN5300 E16130\nNO VA EXP\nNOT AVBL\nNOT PROVIDED\n16\nForecast height and position of the volcanic ash clouds\n(+ 18 HR) (M)\nDay and time (in UTC) (18 hours from the ‘ Time of observation (or estimation) of volcanic ash clouds ’ given in Item 12);\nForecast height and position (in degrees and minutes) for each volcanic ash cloud mass for that fixed valid time\nFCST VA CLD\n+18 HR:\nnn/nnnnZ\nSFC or FLnnn/[FL]nnn\n[nnKM WID LINE BTN (nnNM WID LINE BTN)]\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn] –\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]–\nNnn[nn] or Snn[nn] Wnnn[nn] or\nEnnn[nn]]\nor\nNO VA EXP\nor\nNOT AVBL\nor\nNOT PROVIDED\nFCST VA CLD\n+18 HR:\n23/1900Z\nNO VA EXP\nNOT AVBL\nNOT PROVIDED\n17\nRemarks (M)\nRemarks, as necessary\nRMK:\nFree text up to 256 characters\nor\nNIL\nRMK:\nLATEST REP FM KVERT (0120Z) INDICATES ERUPTION HAS CEASED. TWO DISPERSING VA CLD ARE EVIDENT ON SATELLITE IMAGERY\nNIL\n18\nNext advisory (M)\nYear, month, day and time in UTC\nNXT ADVISORY:\nnnnnnnnn/nnnnZ\nor\nNO LATER THAN nnnnnnnn/nnnnZ\nor\nNO FURTHER ADVISORIES or\nWILL BE ISSUED BY\nnnnnnnnn/nnnnZ\nNXT ADVISORY:\n20080923 /0730Z\nNO LATER THAN\nnnnnnnnn/nnnnZ\nNO FURTHER ADVISORIES\nWILL BE ISSUED BY\nnnnnnnnn/nnnnZ",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by 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)."
    },
    {
      "type": "footnote",
      "label": "f1",
      "text": "Up to 4 selected layers."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "If volcanic ash cloud is reported (e.g. AIREP) but not identifiable from the satellite data."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2017/373/annex/V/appendix/6",
    "retrieved_at": "2026-11-01T14:45:09.531464+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}