Drag the sliders to build a completely fictional atmosphere, then see how meteorologists weigh ingredients like instability, wind shear, and moisture to think about severe weather risk. This is a teaching sandbox for weather enthusiasts — the numbers are made up by you, not real current conditions, and the results are not a forecast.
Remember: this tool is for learning the concepts only. For real, up-to-date severe weather information, always go straight to the source.