Private Pilot Licence · Practice

What is the difference between a SIGMET and an AIRMET, and which is more relevant to PPL cross-country planning?

• A.SIGMET covers severe and extreme meteorological hazards affecting all aircraft.
• B.AIRMET is advisory only; SIGMET triggers automatic airspace closure
• C.SIGMET is only for airliners; AIRMET only for GA — they apply to separate aircraft classes
• D.SIGMET and AIRMET are identical products issued by different offices