Why predicting the weather is so hard

Weather forecasting is a complicated task for the National Oceanic and Atmospheric Administration that begins with collecting billions of observations per day on metrics like temperature and wind speed. This information is then fed into supercomputers that produce weather models that meteorologists use to come up with forecasts. But these models are not perfect. Now, NOAA is exploring buying data as a service from startups like Tomorrow.io and Saildrone to improve its forecasting.