Title: Describe ATC weather services.
Course: Air Traffic Controller (20999) > Section: Understanding Meteorology

Description should include

- PIREPS (pilot reports)
- METAR (Meteorological Aerodrome Report)
- TAF (Terminal Area Forecast)
- SIGMETS (inflight weather advisories for significant meteorological hazards)
- AIRMETS (Airman’s Meteorological Information)
- LAWRS (Limited Aviation Weather Reporting Station)
- National Weather Service (NWS) pre-duty weather briefing.

Process/Skill Questions:

- What is the role of a certified weather observer?
- During which meteorological conditions must ATC use PIREPS?
- Why is it important that some weather resources are text-based while others are graphic?