Aviation English
Meteorology

火山灰重大气象信息 是什么？

火山灰重大气象信息 A SIGMET concerning volcanic ash clouds that may affect en‑route flight safety.

Source: ICAO Doc 9432, FAA PCG

How is “火山灰重大气象信息” Used in Practice?

空中交通管制：发布火山灰SIGMET12，因在NORTH FIR区域FL200观察到灰云。

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

重大气象信息热带气旋重要气象信息（SIGMET）火山灰航路能见度

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Frequently Asked Questions

火山灰重大气象信息 是什么？

A SIGMET concerning volcanic ash clouds that may affect en‑route flight safety.

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