Forecasting
Weather Balloon Sounding Explained: Skew-T Charts Without the Headache
What weather balloon soundings measure, why they matter for storms and winter weather, and how Skew-T charts help meteorologists see the atmosphere vertically.
Quick answer: A weather balloon sounding measures temperature, moisture, wind, and pressure from the surface upward. It gives forecasters a vertical profile of the atmosphere.
What balloons measure
Weather balloons carry instruments that report conditions as they rise. The data shows layers of warm air, dry air, wind shear, and instability.
This vertical view is something surface observations alone cannot provide.
Why it matters
Soundings help forecast thunderstorms, hail, tornado potential, fog, freezing rain, snow type, and wind profiles.
They also help initialize weather models.
Skew-T basics
A Skew-T chart looks complicated, but it is mainly a vertical weather snapshot.
Forecasters use it to compare temperature, dew point, and wind through the atmosphere.