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.
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