❓HOW DO YOU DETERMINE THE BASE OF CLOUDS❓Do you know how to calculate the base of where cumulus clouds start forming? Here’s how pilots do it! You need two things. The current temperature and the dew point. Now you have to know that temperature and dew point get closer together with altitude. Because with rising altitude the temperature. So at the point where temp and dew point match, clouds start to form. The rate at which they get closer together is 2 °C per 1,000 feet. So let’s assume the ATI