--- title: "Appendix 1 — SPECIFIC REQUIREMENTS FOR PROVIDERS OF METEOROLOGICAL SERVICES, ATM/ANS · Avioverse" description: "Template for METAR and SPECI Key: M = inclusion mandatory; C = inclusion conditional, dependent on meteorological conditions or method of observation;" url: "https://avioverse.aero/regulations/easa/atm-ans/part-met/appendices-to-annex-v/appendix-1" --- # Appendix 1 SPECIFIC REQUIREMENTS FOR PROVIDERS OF METEOROLOGICAL SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025 Appendix Appendix ## Appendix 1 | Template for METAR and SPECI Key: M = inclusion mandatory; C = inclusion conditional, dependent on meteorological conditions or method of observation; O = inclusion optional. Note 1: The ranges and resolutions for the numerical elements included in METAR and SPECI are provided in a separate table below this template. Note 2: The explanations for the abbreviations can be found in ICAO Document 8400 Procedures for Air Navigation Services — Abbreviations and Codes (PANS-ABC). Note 3: Row numbers in the ‘Ref.’ column are included only for clarity and ease of reference, and are not part of the METAR and SPECI. | | | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------- | --------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | --- | ---------------------------------------------------------------------------------------------------------------------------------------------- | --------- | --------- | | Ref. | Element | Detailed content | Template(s) | | | | | | | 1 | Identification of the type of report (M) | Type of report (M) | METAR, METAR COR, SPECI or SPECI COR | | | | | | | 2 | Location indicator (M) | ICAO location indicator (M) | nnnn | | | | | | | 3 | Time of the observation (M) | Day and actual time of the observation in UTC (M) | nnnnnnZ | | | | | | | 4 | Identification of an automated or missing report (C) | Automated or missing report identifier (C) | AUTO or NIL | | | | | | | 5 | END OF METAR IF THE REPORT IS MISSING. | | | | | | | | | 6 | Surface wind (M) | Wind direction (M) | nnn or /// () | | VRB | | | | | | | Wind speed (M) | \[P]nn\[n] or // () | | | | | | | | | Significant speed variations (C) | G\[P]nn\[n] | | | | | | | | | Units of measurement (M) | KT | | | | | | | | | Significant directional variations (C) | nnnVnnn | | — | | | | | 7 | Visibility (M) | Prevailing or minimum visibility (M) | nnnn or //// () | | | | C A V O K | | | | | Minimum visibility and direction of the minimum visibility (C) | nnnn\[N] or nnnn\[NE] or nnnn\[E] or nnnn\[SE] or nnnn\[S] or nnnn\[SW] or nnnn\[W] or nnnn\[NW] | | | | | | | 8 | Runway visual range (C) () | Name of the element (M) | R | | | | | | | | | Runway (M) | nn\[L]/or nn\[C]/or nn\[R]/ | | | | | | | | | Runway visual range (M) | \[P or M]nnnn or //// (1) | | | | | | | | | Runway visual range past tendency (C) | U, D or N | | | | | | | 9 | Present weather (C) | Intensity or proximity of present weather (C) | – or + | — | | VC | | | | | | Characteristics and type of present weather (M) | DZ or RA or SN or SG or PL or DS or SS or FZDZ or FZRA or FZUP () or FC () or SHGR or SHGS or SHRA or SHSN or SHUP () or TSGR or TSGS or TSRA or TSSN or TSUP () or UP () | FG or BR or SA or DU or HZ or FU or VA or SQ or PO or TS or BCFG or BLDU or BLSA or BLSN or DRDU or DRSA or DRSN or FZFG or MIFG or PRFG or // () | | FG or PO or FC or DS or SS or TS or SH or BLSN or BLSA or BLDU or VA | | | | 10 | Cloud (M) | Cloud amount and height of cloud base or vertical visibility (M) | FEWnnn or SCTnnn or BKNnnn or OVCnnn or FEW/// () or SCT/// () or BKN/// () or OVC/// () or ///nnn () or ////// () | VVnnn or VV/// () | | NSC or NCD () | | | | | | Cloud type (C) | CB or TCU or /// (),() | — | | | | | | 11 | Air and dew-point temperature (M) | Air and dew-point temperature (M) | \[M]nn/\[M]nn or ///\[M]nn () or \[M]nn/// () or ///// () | | | | | | | 12 | Pressure values (M) | Name of the element (M) | Q | | | | | | | | | QNH (M) | nnnn or //// () | | | | | | | 13 | Supplementary information (C) | Recent weather (C) | RERASN or REFZDZ or REFZRA or REDZ or RE\[SH]RA or RE\[SH]SN or RESG or RESHGR or RESHGS or REBLSN or RESS or REDS or RETSRA or RETSSN or RETSGR or RETSGS or RETS or REFC or REVA or REPL or REUP () or REFZUP () or RETSUP () or RESHUP () or RE// () | | | | | | | | | Wind shear (C) | WS Rnn\[L] or WS Rnn\[C] or WS Rnn\[R] or WS ALL RWY | | | | | | | | | Sea-surface temperature and state of the sea or significant wave height (C) | W\[M]nn/Sn or W///Sn () or W\[M]nn/S/ () or W\[M]nn/Hn\[n]\[n] or W///Hn\[n]\[n] () or W\[M]nn/H/// () | | | | | | | 14 | Trend forecast (O) | Change indicator (M) | NOSIG | BECMG or TEMPO | | | | | | | | Period of change (C) | | FMnnnn and/or TLnnnn or ATnnnn | | | | | | | | Wind (C) | | nnn\[P]nn\[G\[P]nn]KT | | | | | | | | Prevailing visibility (C) | | nnnn | | | | C A V O K | | | | | | | | | | | | | | Weather phenomenon: intensity (C) | | – or + | | — | N S W | | | | | Weather phenomenon: characteristics and type (C) | | DZ or RA or SN or SG or PL or DS or SS or FZDZ or FZRA or SHGR or SHGS or SHRA or SHSN or TSGR or TSGS or TSRA or TSSN | | FG or BR or SA or DU or HZ or FU or VA or SQ or PO or FC or TS or BCFG or BLDU or BLSA or BLSN or DRDU or DRSA or DRSN or FZFG or MIFG or PRFG | | | | | | Cloud amount and height of cloud base or vertical visibility (C) | | FEWnnn or SCTnnn or BKNnnn or OVCnnn | | VVnnn or VV/// | N S C | | | | | Cloud type (C) | | CB or TCU | | — | | | | Ranges and resolutions for the numerical elements included in METAR and SPECI | | | | | | | ----------------------------------------------------------------------------- | --------------------------------------- | ---------- | -------- | ----------------- | ---------------------- | | Ref. | Elements | | | Range | Resolution | | 1 | Runway: | (no units) | | 01–36 | 1 | | 2 | Wind direction: | °true | | 000–360 | 10 | | 3 | Wind speed: | KT | | 00–99 P99 | 1 N/A (100 or greater) | | 4 | Visibility: | M | | 0000–0750 | 50 | | | | M | | 0800–4 900 | 100 | | | | M | | 5 000–9 000 | 1 000 | | | | M | | 10 000 or greater | 0 (fixed value: 9 999) | | 5 | Runway visual range: | M | | 0000–0375 | 25 | | | | M | | 0400–0750 | 50 | | | | M | | 0800–2 000 | 100 | | 6 | Vertical visibility: | | 100’s FT | 000–020 | 1 | | 7 | Clouds: height of cloud base: | 100’s FT | | 000–099 100-200 | 1 10 | | 8 | Air temperature: Dew-point temperature: | °C | | –80 – +60 | 1 | | 9 | QNH: | hPa | | 0850–1 100 | 1 | | 10 | Sea-surface temperature: | °C | | –10 – +40 | 1 | | 11 | State of the sea: | (no units) | | 0–9 | 1 | | 12 | Significant wave height: | M | | 0–999 | 0,1 | APPENDIX · Appendix 1 — 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.