To measure wind speed and direction ... [Andy] demonstrates building an ultrasonic anemometer using a cheap after-market parking distance sensor kit and an Arduino. Demo video after the break.

and for wind speed and direction the choice is usually a simple cup anemometer and wind vane. For [Jianjia Ma]’s QingStation, he decided to build another type of wind sensor: An ultrasonic ...

If you place your weather station in an alley, you could very well get a wind tunnel effect on the anemometer ... with misplacing the thermometer sensor. Meteorologists define temperature as ...