What data do LLWAS remote stations collect at their location and transmit to the master station?

• A. Temperature and humidity
• B. Wind speed and direction
• C. Pressure and temperature
• D. Wind gust and variance

Answer: (B)

LLWAS remote stations are focused on capturing the actual wind conditions at their location. They measure how fast the air is moving (wind speed) and from which direction the wind is coming (wind direction) using an anemometer and a wind vane, and they transmit those measurements to the master station. This data set is what the system uses to compare winds across the network and detect potential low-level wind shear. Temperature, humidity, and pressure aren’t the primary data transmitted for LLWAS purposes, and while gusts or speed variations can be analyzed over time, the remote stations’ fundamental measurements are wind speed and direction.