What is the primary function of ASOS and AWOS stations?

Why: The Remote Pilot Study Guide describes the Automated Surface Observing System (ASOS) and Automated Weather Observing System (AWOS) as automated sources that play a major role in gathering surface observations, reporting the current local weather — wind, visibility, RVR, weather phenomena, sky condition, temperature/dew point, and altimeter reading — for a specific airport.

• Confuses an observed-conditions system with a forecast product; the TAF is a separate, periodically issued forecast, not something ASOS/AWOS generates.
• Confuses ASOS/AWOS with the NOTAM system; NOTAMs convey time-critical operational information like runway closures and are a distinct source from automated weather observations.