MET.TR.255 AIRMET

• Regulation (EU) 2021/1338 found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

MET.TR.255 AIRMET Regulation (EU) 2021/1338 (a) AIRMET shall be issued in accordance with the template shown in Appendix 5. (b) The sequence number referred to in the template in Appendix 5 shall correspond to the number of AIRMET issued for the flight information region since 00.01 UTC on the day concerned. (c) Only one of the phenomena in Appendix 5 shall be included in an AIRMET, using the appropriate abbreviations and the following threshold values, when the phenomenon is below flight level 100, or below flight level 150 in mountainous areas, or higher, where necessary: (1) widespread surface wind speed above 30 kt with relevant direction and units; (2) widespread areas affected by reduction of visibility to less than 5 000 m, including the weather phenomenon causing the reduction of visibility; (3) widespread areas of broken or overcast cloud with height of base less than 1 000 ft above ground level’. (d) AIRMET concerning thunderstorms or cumulonimbus clouds shall not include references to associated turbulence and icing. MET.TR.255 AIRMET Regulation (EU) 2021/1338 (a)       AIRMET shall be issued in accordance with the template shown in Appendix 5. (b)       The sequence number referred to in the template in Appendix 5 shall correspond to the number of AIRMET issued for the flight information region since 00.01 UTC on the day concerned. (c)       Only one of the phenomena in Appendix 5 shall be included in an AIRMET, using the appropriate abbreviations and the following threshold values, when the phenomenon is below flight level 100, or below flight level 150 in mountainous areas, or higher, where necessary: (1)       widespread surface wind speed above 30 kt with relevant direction and units; (2)       widespread areas affected by reduction of visibility to less than 5 000 m, including the weather phenomenon causing the reduction of visibility; (3)       widespread areas of broken or overcast cloud with height of base less than 1 000 ft above ground level’. (d)       AIRMET concerning thunderstorms or cumulonimbus clouds shall not include references to associated turbulence and icing.