--- title: "Appendix 5 — SPECIFIC REQUIREMENTS FOR PROVIDERS OF METEOROLOGICAL SERVICES, ATM/ANS · Avioverse" description: "Template for SIGMET and AIRMET Key: M = inclusion mandatory;" url: "https://avioverse.aero/regulations/easa/atm-ans/part-met/appendices-to-annex-v/appendix-5" --- # Appendix 5 SPECIFIC REQUIREMENTS FOR PROVIDERS OF METEOROLOGICAL SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025 Appendix Appendix ## Appendix 5 | Template for SIGMET and AIRMET Key: M = inclusion mandatory; C = inclusion conditional, whenever applicable; and Note 1: The ranges and resolutions for the numerical elements included in SIGMET or AIRMET are shown in Appendix 8. Note 2: Severe or moderate icing (SEV ICE, MOD ICE) and severe or moderate turbulence (SEV TURB, MOD TURB) associated with thunderstorms, cumulonimbus clouds or tropical cyclones should not be included. Note 3: Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the SIGMET or AIRMET. | | | | | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------- | 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| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Ref. | Element | Detailed content | SIGMET template | AIRMET template | | 1 | Location indicator of FIR/CTA (M) | ICAO location indicator of the ATS unit serving the FIR or CTA to which the SIGMET/AIRMET refers | nnnn | | | 2 | Identification (M) | SIGMET or AIRMET identification and sequence number | SIGMET nnn | AIRMET \[n]\[n]n | | 3 | Validity period (M) | Day-time groups indicating the period of validity in UTC | VALID nnnnnn/nnnnnn | | | 4 | Location indicator of MWO (M) | Location indicator of MWO originating the SIGMET or AIRMET with a separating hyphen | nnnn– | | | 5 | New line | | | | | 6 | Name of the FIR/CTA (M) | Location indicator and name of the FIR/CTA for which the SIGMET/AIRMET is issued | nnnn nnnnnnnnnn FIR or UIR or FIR/UIR or nnnn nnnnnnnnnn CTA | nnnn nnnnnnnnnn FIR\[/n] | | 7 | IF THE SIGMET OR AIRMET IS TO BE CANCELLED, SEE DETAILS AT THE END OF THE TEMPLATE. | | | | | 8 | Status indicator (C) () | Indicator of test or exercise | TEST or EXER | TEST or EXER | | 9 | New line | | | | | 10 | Phenomenon (M) | Description of the phenomenon causing the issuance of SIGMET/AIRMET | OBSC TS\[GR] EMBD TS\[GR] FRQ TS\[GR] SQL TS\[GR] TC nnnnnnnnnn PSN Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] CB or TC NN () PSN Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] CB SEV TURB SEV ICE SEV ICE (FZRA) SEV MTW HVY DS HVY SS \[VA ERUPTION] \[MT nnnnnnnnnn] \[PSN Nnn\[nn] or Snn\[nn] Ennn\[nn] or Wnnn\[nn]] VA CLD RDOACT CLD | SFC WIND nnn/nn\[n]KT SFC VIS \[n]\[n]nnM (nn) ISOL TS\[GR] OCNL TS\[GR] MT OBSC BKN CLD BKN CLD \[n]nnn/\[ABV]\[n]nnnnFT or BKN CLD SFC/\[ABV]\[n]nnnnFT or OVC CLD \[n]nnn/\[ABV]\[n]nnnnFT or OVC CLD SFC/\[ABV]\[n]nnnnFT ISOL CB OCNL CB FRQ CB ISOL TCU OCNL TCU FRQ TCU MOD TURB MOD ICE MOD MTW | | 11 | Observed or forecast phenomenon (M) (),() | Indication whether the information is observed and expected to continue, or forecast | OBS \[AT nnnnZ] or FCST \[AT nnnnZ] | | | 12 | Location (C) (),(),() | Location (referring to latitude and longitude (in degrees and minutes)) | Nnn\[nn] Wnnn\[nn] or Nnn\[nn] Ennn\[nn] or Snn\[nn] Wnnn\[nn] or Snn\[nn] Ennn\[nn] or N OF Nnn\[nn] or S OF Nnn\[nn] or N OF Snn\[nn] or S OF Snn\[nn] or \[AND] W OF Wnnn\[nn] or E OF Wnnn\[nn] or W OF Ennn\[nn] or E OF Ennn\[nn] or N OF Nnn\[nn] or N OF Snn\[nn] AND S OF Nnn\[nn] or S OF Snn\[nn] or W OF Wnnn\[nn] or W OF Ennn\[nn] AND E OF Wnnn\[nn] or E OF Ennn\[nn] or N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]] \[AND N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]]] or WI Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – \[Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]]\() or ENTIRE UIR or ENTIRE FIR or ENTIRE FIR/UIR or ENTIRE CTA or WI nnnKM (or nnnNM) OF TC CENTRE () or WI nnKM (or nnNM) OF Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] () | | | 13 | Level (C) | Flight level or altitude | \[SFC/]FLnnn or \[SFC/]\[n]nnnnFT (or \[SFC/]nnnnM) FLnnn/nnn or TOP FLnnn or \[TOP] ABV FLnnn or (or \[TOP] ABV \[n]nnnnFT) \[\[n]nnnn/]\[n]nnnnFT) or \[n]nnnnFT/]FLnnn or TOP \[ABV or BLW] FLnnn () | | | 14 | Movement or expected movement (C) (),(),() | Movement or expected movement (direction and speed) with reference to one of the 16 points of compass, or stationary | MOV N \[nnKMH] or MOV NNE \[nnKMH] or MOV NE \[nnKMH] or MOV ENE \[nnKMH] or MOV E \[nnKMH] or MOV ESE \[nnKMH] or MOV SE \[nnKMH] or MOV SSE \[nnKMH] or MOV S \[nnKMH] or MOV SSW \[nnKMH] or MOV SW \[nnKMH] or MOV WSW \[nnKMH] or MOV W \[nnKMH] or MOV WNW \[nnKMH] or MOV NW \[nnKMH] or MOV NNW \[nnKMH] (or MOV N \[nnKT] or MOV NNE \[nnKT] or MOV NE \[nnKT] or MOV ENE \[nnKT] or MOV E \[nnKT] or MOV ESE \[nnKT] or MOV SE \[nnKT] or MOV SSE \[nnKT] or MOV S \[nnKT] or MOV SSW \[nnKT] or MOV SW \[nnKT] or MOV WSW \[nnKT] or MOV W \[nnKT] or MOV WNW \[nnKT] or MOV NW \[nnKT] or MOV NNW \[nnKT]) or STNR | | | 15 | Changes in intensity (C) () | Expected changes in intensity | INTSF or WKN or NC | | | 16 | Forecast time (C) (),(),() | Indication of the forecast time of the phenomenon | FCST AT nnnnZ | — | | 17 | TC forecast position (C) () | Forecast position of the TC centre | TC CENTRE PSN Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] or TC CENTRE PSN Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] CB () | — | | 18 | Forecast position (C) (),(),(),() | Forecast position of the phenomenon at the end of the validity period of the SIGMET () | Nnn\[nn] Wnnn\[nn] or Nnn\[nn] Ennn\[nn] or Snn\[nn] Wnnn\[nn] or Snn\[nn] Ennn\[nn] or N OF Nnn\[nn] or S OF Nnn\[nn] or N OF Snn\[nn] or S OF Snn\[nn] \[AND] W OF Wnnn\[nn] or E OF Wnnn\[nn] or W OF Ennn\[nn] or E OF Ennn\[nn] or N OF Nnn\[nn] or N OF Snn\[nn] AND S OF Nnn\[nn] or S OF Snn\[nn] or W OF Wnnn\[nn] or W OF Ennn\[nn] AND E OF Wnnn\[nn] or E OF Ennn\[nn] or N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]] \[AND N OF LINE or NE OF LINE or E OF LINE or SE OF LINE or S OF LINE or SW OF LINE or W OF LINE or NW OF LINE Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] \[– Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn]]] or WI Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] – Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] () or ENTIRE FIR or ENTIRE UIR or ENTIRE FIR/UIR or ENTIRE CTA or NO VA EXP () or WI nnKM (or nnNM) OF Nnn\[nn] or Snn\[nn] Wnnn\[nn] or Ennn\[nn] () or WI nnnKM (nnnNM) OF TC CENTRE () | — | | 19 | Repetition of elements (C) () | Repetition of elements included in a SIGMET for volcanic ash cloud or tropical cyclone | \[AND] () | — | | 20 | New line if repeating elements | | | | | | OR | | | | | 21 | Cancellation of SIGMET/AIRMET (C) | Cancellation of SIGMET/AIRMET referring to its identification | CNL SIGMET nnn nnnnnn/nnnnnn or CNL SIGMET nnn nnnnnn/nnnnnn \[VA MOV TO nnnn FIR]\() | CNL AIRMET \[n]\[n]n nnnnnn/nnnnnn | APPENDIX · Appendix 5 — Regulation (EU) 2017/373 · Regulation (EU) 2021/1338 · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025 [All rules in APPENDICES TO ANNEX V](https://avioverse.aero/regulations/easa/atm-ans/part-met/appendices-to-annex-v) Consolidated from the EASA Easy Access Rules (revision 12 Mar 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.