What role do AWOS/ASOS systems play in supporting RAWS?

• A. They provide automated weather observations that complement radar data for a complete weather picture.
• B. They provide pilot training resources.
• C. They replace radar data entirely.
• D. They only measure wind speed.

Answer: (D)

AWOS/ASOS provide automated, continuous weather observations that complement radar data to form a complete weather picture around the airfield. While radar reveals movement, intensity, and structure of precipitation aloft, AWOS/ASOS supply ground-truth and near-surface conditions that radar cannot measure directly. They report wind speed and direction (including gusts), visibility, cloud ceiling, present weather, precipitation type, temperature, dew point, and altimeter pressure. This combination lets you interpret radar echoes more accurately and make informed decisions for operations, safety, and forecasting. They don’t replace radar; they enhance it by adding the surface and lower-atmosphere observations that radar alone can’t provide.