GMGuidance material
GM1 to Appendix 6 ‘Template for advisory for volcanic ash’
ADVISORY FOR VOLCANIC ASH — EXAMPLES OF ELEMENTS Non-exhaustive examples of the different elements used in the formulation of advisory for volcanic ash are provided below.
| Examples of elements Note 1: Consult the ‘Template for advisory for volcanic ash’ (Appendix 6 to Annex V (Part-MET) to Regulation (EU) 2017/373) to identify the mandatory (M), the conditional (C) or the optional (O) elements. Note 2: The ranges and resolutions for the numerical elements included in advisory for volcanic ash are provided in Appendix 8 to Annex V (Part-MET) to Regulation (EU) 2017/373. Note 3: The row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the advisory for volcanic ash. They do not correlate with the ‘Ref.’ column in the ‘Template for advisory for volcanic ash’ of Appendix 6 to Annex V (Part-MET) to Regulation (EU) 2017/373. Refer to the ‘Element’ column when cross-referencing. | |||
|---|---|---|---|
| Ref. | Element | Examples | |
| 1 | Identification of the type of message | VA ADVISORY | |
| 2 | Status indicator | STATUS: | TEST EXER |
| 3 | Time of origin | DTG: | 20080923/0130Z |
| 4 | Name of VAAC | VAAC: | TOKYO |
| 5 | Name of volcano | VOLCANO: | KARYMSKY 300130 UNNAMED UNKNOWN |
| 6 | Location of volcano | PSN: | N5403 E15927 UNKNOWN |
| 7 | State or region | AREA: | RUSSIA UNKNOWN |
| 8 | Summit elevation | SUMMIT ELEV: | 1536M SFC |
| 9 | Advisory number | ADVISORY NR: | 2008/4 |
| 10 | Information source | INFO SOURCE: | HIMAWARI-8 KVERT KEMSD |
| 11 | Colour code | AVIATION COLOUR CODE: | RED |
| 12 | Eruption details | ERUPTION DETAILS: | ERUPTION AT 20080923/0000Z FL300 REPORTED NO ERUPTION – RE-SUSPENDED VA () UNKNOWN |
| 13 | Time of observation (or estimation) of volcanic ash clouds | OBS VA DTG: | 23/0100Z |
| 14 | Observed or estimated volcanic ash clouds | OBS VA CLD: | FL250/300 N5400 E15930 – N5400 E16100 – N5300 E15945 – N5400 E15930 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 FL050/070 180/24KT |
| 15 | Forecast height and position of the volcanic ash clouds (+6 HR) | 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 |
| 16 | Forecast height and position of the volcanic ash clouds (+12 HR) | FCST VA CLD +12 HR: | 23/1300Z SFC/FL270 N4830 E16130 – N4830 E16600 – N5300 E16600 – N5300 E16130 – N4830 E16130 NO VA EXP NOT AVBL NOT PROVIDED |
| 17 | Forecast height and position of the volcanic ash clouds (+18 HR) | FCST VA CLD +18 HR: | 23/1900Z NO VA EXP NOT AVBL NOT PROVIDED |
| 18 | Remarks | RMK: | LATEST REP FM KVERT (0120Z) INDICATES ERUPTION HAS CEASED. TWO DISPERSING VA CLD ARE EVIDENT ON SATELLITE IMAGERY RE-SUSPENDED VA () NIL |
| 19 | Next advisory | NXT ADVISORY: | 20080923/0730Z NO LATER THAN nnnnnnnn/nnnnZ NO FURTHER ADVISORIES WILL BE ISSUED BY nnnnnnnn/nnnnZ |
GM — Regulation (EU) 2017/373 · ED Decision 2022/004/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025