Originally Posted by
UKtravelbear
Whether you think weather like fog is a weekly event or not it is an exemption laid down in EU261
Actually, exactly how far Reg 261/2004 reaches in relation to meteorological conditions has never been tested before the CJEU. It would certainly be arguable that the meteorological event would need to be of a sufficient gravity/unusual character for it to constitute an extraordinary circumstance.*
So I would not say that Reg 261/2004 explicitly provides a blanket defence for all weather-related events. That said, though, I would not necessarily recommend taking up that fight all the way to the CJEU to test the argument.
*:
especially as the exact wording of the preamble speaks of "meteorological conditions incompatible with the operation of the flight concerned", rather than meteorological conditions affecting flight operations in general.