Weather radar images

How to use radar images

Radar images show the current and estimated precipitation changes (rain, thunderstorms, rain showers or snow). The estimated amount of precipitation is portrayed with different colours. Radar precipitation detection takes place every 10 minutes and the images are available online including the latest forecast.

Radar and the recorded precipitation

Current precipitation and thunderstorms are recorded by meteorological radars. The principle of a radar is based on a reverse dispersal of microwaves that reflect the precipitation. The precipitation intenstity estimation is calculated according to the power of the reflection - thunderstorms and downfalls are shown as red on radar imagery.