New 400 hPa Level and More Vertical Levels from the ICON Model

We have expanded the selection of altitude levels available for the Wind and Temperature layers on Ventusky. A new 400 hPa level has been added, corresponding to an altitude of approximately 7 km (23,000 ft). This fills the gap between the existing 500 hPa and 300 hPa levels.

Significant changes in wind speed often occur at these higher flight levels. The new level makes it easier to monitor the position and strength of fast-moving air currents, which can affect flight time, fuel consumption, and turbulence. For temperature, it provides a more detailed view of atmospheric conditions at altitudes commonly used by both commercial and general aviation.

At the same time, we have expanded the number of available vertical levels sourced from the ICON weather model. ICON offers finer vertical resolution than the GFS-based levels previously available. As a result, you can now examine more atmospheric layers between the surface and the stratosphere, allowing for a more precise assessment of wind shear, temperature gradients, and changes in airflow during climb and descent.

The new levels are available on the Ventusky website and will soon be available in the mobile apps through the altitude selector in the Wind and Temperature layers. Pilots, glider pilots, and meteorologists can now access a more detailed view of atmospheric conditions than ever before.