What is another word for pilot balloons?
Pronunciation: [pˈa͡ɪlət bəlˈuːnz] (IPA) 
Pilot balloons are often referred to as sounding balloons, as they are used to measure the atmospheric conditions in the sky. They are commonly known as weather balloons because they are used to predict the weather by measuring temperature, humidity, and pressure in the upper atmosphere. These balloons provide a vital source of information for meteorologists and researchers who need to understand the behavior of the atmosphere. Flight balloons and research balloons are also other terms used for the same task. These balloons are critical in understanding our environment and help us predict severe weather, which can save lives and assets.
