What is Significant Meteorological Information?
Significant Meteorological Information A weather advisory issued by a Meteorological Watch Office concerning significant en‑route weather hazards affecting flight safety.
Source: ICAO Doc 9432, FAA PCG
How is “Significant Meteorological Information” Used in Practice?
ATC: SIGMET 12 issued for severe turbulence between FL200 and FL360 in sector NORDIC‑ACC.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is Significant Meteorological Information?
A weather advisory issued by a Meteorological Watch Office concerning significant en‑route weather hazards affecting flight safety.
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