Aviation English
Meteorology

What is Tropical Cyclone Significant Meteorological Information?

Tropical Cyclone Significant Meteorological Information A SIGMET issued for a tropical cyclone within or approaching an FIR, including observed or forecast TC position, extent of associated cumulonimbus clouds, movement and intensity.

Source: ICAO Doc 9432, FAA PCG

How is “Tropical Cyclone Significant Meteorological Information” Used in Practice?

ATC: Tropical Cyclone SIGMET 05 issued for TC Annie approaching FL100; cumulonimbus extent and motion provided.

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

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Frequently Asked Questions

What is Tropical Cyclone Significant Meteorological Information?

A SIGMET issued for a tropical cyclone within or approaching an FIR, including observed or forecast TC position, extent of associated cumulonimbus clouds, movement and intensity.

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