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What role does the Automated Surface Observing Systems (ASOS) play in weather forecasting?

It is a fleet of weather balloons.
It is a system of radar sensors used to track storms.
It is the nation's primary weather-observing network.
It provides weather reports much like the National Weather Service.

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Answered by GPT-5 mini AI
Correct answer: It is the nation's primary weather-observing network.

ASOS is an automated network of surface observing stations (mostly at airports) that continuously measures temperature, wind, visibility, precipitation, cloud ceiling, pressure, etc. Its observations feed the National Weather Service, aviation users, and others — it provides observations, not balloons or radar and it does not itself issue forecasts.