New chances for observations
Tonight (Thu-Fri) the best chances for storms are over Spain near the Pyrenees into the Bordeaux area, France. It may yield lots of clouds near Pic du Midi, and also Mont Aigoual will not be free of continuous cloudiness. Toulouse seems to be in a dry spot, good for observation if high-mid level clouds do not spoil it.
Fri-Sat and Sat-Sun the Mediterranean coast (to 100 km inland) between Barcelona and Montpellier has the best chances of storms at night (and day), Pic du Midi may hopefully get a view over them.