Which schedule describes when wind-direction and speed indicator readings must be checked at facilities with an associated NWS office?

• A. Every shift
• B. At the beginning of each work day
• C. At the end of the day
• D. Every 24 hours

Answer: (B)

The main idea is to establish a correct baseline for wind readings before any operations begin. Wind-direction and speed indicators can drift or malfunction over time, so confirming they read accurately at the start of the workday ensures the data used for air traffic decisions and the information shared with the associated NWS office is trustworthy from the outset of that shift. If the readings don’t align with expected values or with nearby weather sources, technicians can flag the instrument, perform adjustments, or arrange maintenance before you rely on it for routine operations. This daily start-of-day check protects safety by preventing decisions based on faulty wind data.