Windy.appForecast layer

Thunderstorms

See where thunderstorms may produce lightning and follow the forecast hour by hour.

Thunderstorms is an overlay and can be found in the Layer picker. It pairs perfectly with Precipitation layer

Thunderstorms selected in the Windy.app map menu Thunderstorms selected in the Windy.app map menu
How to find the Trunderstorms overlay
What it shows

Electrical activity inside a forecast storm

The layer visualizes total lightning flash density predicted by the ECMWF weather model. It helps distinguish a simple rainy area from a thunderstorm capable of frequent electrical discharges.

01

Total lightning

The parameter covers total flash activity in the atmosphere.

02

Probability

Symbols describe expected activity within a model area. They are not exact coordinates of future strikes.

03

Forecast, not live data

The layer comes from a numerical weather model. It does not show lightning already detected by a sensor network.

ECMWF
About the data

Instantaneous total lightning flash density

Windy.app uses ECMWF data. We calculate a probability of a thunderstorm.