Safety & tech
15 meteorology facts for the A2 exam
Meteorology is the most common weak topic in A2 — these points recur in official papers.
Contents
Key facts
- METAR — aerodrome weather report
- Gusts vs mean wind speed
- Cloud base and visibility
- Humidity and fog risk
- Fronts and rapid change
- Wind origin and turbulence
- Thermals affecting small UAS
- Pressure and altitude
- IMC vs VMC conditions
- When to postpone flight
- LiPo and temperature
- Wind rose interpretation
- Gust factor safety margin
- Cloud types and precipitation
- Scenario-based decisions
How to study
A2STS topic tests plus spaced repetition on mistakes.
In the exam
Roughly 10 of 30 questions — allocate enough time.
Mock exams
Full 30/30 timed simulations before NAA booking.
Authority & sources
A2STS Editorial · Reviewed by: EASA UAS syllabus aligned