The royal meteorological Institute has issued a yellow alert for thunderstorms for the evening of this Saturday. The major part of the territory is concerned, with the exception of the Coast and of the province of west Flanders. In Brussels, the firefighters are very busy after major storms. "We urge to contact the 1722 for the interventions related to the weather," said a spokesman. Around 18h, the firemen were already running fifteen interventions, while seventy were waiting.