Unmanned instruments that report on weather variables.

Credit: Gallatin National Forest Avalanche Center

Weather stations record and relay important data from remote locations. Typical measurements include wind direction and speed, snowfall, precipitation, temperature, and relative humidity.  Stations are typically powered by solar panels and batteries and transmit data using cellular signals or freewave antennas.   Weather station data is commonly accessible online through avalanche center websites.  Read more to explore how these variables are measured and how to identify erroneous data.