Very warm and moist air created intense and unusually strong thunderstorms for the end of May in Southern Finland. The following pics are from Sunday and Tuesday nights, both from Helsinki.
Cultural ShockLightningMammatusDownpourMulticell stormFlash floodingLightningsLightnings 2Mammatus 2StrikesRainMore rainRain coatedFlash flooding 2Mammatus 4Mammatus 3Roll cloudRain dropsFlash flooding 3