Weather balloons are a type of high altitude balloon specifically used for transporting scientific payloads into our upper atmosphere. They can carry their payloads as high as 40,000 m ~ 130,000 ft.

What is a weather balloon called?

A weather balloon, also known as sounding balloon, is a balloon (specifically a type of high-altitude balloon) that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.

What do you do if you find a weather balloon?

(1) Cut and discard the string to the burst balloon and orange parachute. IMPORTANT: On rare occasions the balloon may be found partially inflated with gas. The gas inside the balloon may be flammable hydrogen. If the balloon is inflated, keep away from it and contact your local fire department for safe disposal.