@michelvdp29 Hello, our radar provider currently has a data outage. Updates will be posted here. We are very sorry for inconvenience, we will display radar as soon as we have data again.
@harksmith: The answers of Windy here don't apply to the lightning data. This data is gathered by volunteers with self-made lightning detectors. On the African continent several additional detectors are needed for a better coverage. You can read more about that on Blitzortung.org: http://www.blitzortung.org/cover_your_area.php
The real time lightning data is currently grabbed without permission from the Blitzortung.org website.