Description:

Weather balloons are used to:

✅ Measure upper air conditions.

They carry instruments called radiosondes that collect data on temperature, humidity, and atmospheric pressure in the upper levels of the atmosphere (up to about 35 km or more). This data is essential for weather forecasting and research.

🔸 Surface air conditions are typically measured using ground-based weather stations.

🔸 Oceanic conditions are measured using buoys, ships, and underwater sensors, not weather balloons.