Aviation English
Meteorology

Qu'est-ce que altocumulus castellanus ?

altocumulus castellanus Medium-level turreted cloud with rising towers indicating mid‑level instability, possible precursor to thunderstorms.

Source: ICAO Doc 9432, FAA PCG

How is “altocumulus castellanus” Used in Practice?

Nous observons un altocumulus castellanus à midi six miles, demandons un changement de cap pour éviter le développement.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

cumulus bourgeonnantplafondcisaillement du ventbase des nuages

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Frequently Asked Questions

Qu'est-ce que altocumulus castellanus ?

Medium-level turreted cloud with rising towers indicating mid‑level instability, possible precursor to thunderstorms.

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