any form of liquid precipitation that freezes upon impact with the ground or exposed objects, that is, freezing rain, freezing drizzle, or freezing fog
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Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennumeteoroloogia
Vahel esineb allajahtunud sademeid – pilvedest langevad veetilgad madalama kui 0 °C õhutemperatuuri juures. See tekitabki jäidet. Vast tuntum allajahtunud sademeliik on jäävihm, mida sajab enamasti kihtsajupilvedest.
The present weather occurring at the aerodrome shall be observed and reported as necessary. The following present weather phenomena shall be identified, as a minimum: rain, drizzle, snow and freezing precipitation (including intensity thereof), haze, mist, fog, freezing fog and thunderstorms (including thunderstorms in the vicinity).
